WO2018079677A1 - Concentrated solar power generation device - Google Patents

Concentrated solar power generation device Download PDF

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Publication number
WO2018079677A1
WO2018079677A1 PCT/JP2017/038771 JP2017038771W WO2018079677A1 WO 2018079677 A1 WO2018079677 A1 WO 2018079677A1 JP 2017038771 W JP2017038771 W JP 2017038771W WO 2018079677 A1 WO2018079677 A1 WO 2018079677A1
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Prior art keywords
concentrating solar
solar cell
power generation
concentrating
tracking
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PCT/JP2017/038771
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French (fr)
Japanese (ja)
Inventor
誠和 中谷
山田　昇
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株式会社サンマリオン
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Publication of WO2018079677A1 publication Critical patent/WO2018079677A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/10—Cleaning arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/52—PV systems with concentrators

Definitions

  • the present invention relates to a concentrating solar power generation device.
  • Patent Document 5 a solar power generation device including the tracking device as described above has been proposed.
  • a general tracking device is large in order to realize a structure excellent in wind resistance, but the solar cell load is not large for that. For this reason, a distributed movable type tracking device has also been proposed, but the mechanism of the tracking device is complicated and the cost increases. In addition, the tracking device has a large problem during installation and transportation.
  • a conventional general tracking device uses a component having no or very low light transmission as its constituent member. Then, for example, when a concentrating solar cell panel capable of transmitting incident scattered light is controlled by a general tracking device, the scattered light transmitted through the concentrating solar cell panel is transmitted to the tracking device. The utility value of the concentrating solar cell panel which cannot transmit and can transmit scattered light will fall.
  • an object of the present invention is provided with a concentrating solar cell panel and a dispersion movable tracking device, and is capable of condensing direct light at high magnification, and at the same time, scattered light.
  • the concentrating solar power generation device (hereinafter, also referred to as “concentrating solar power generation device ⁇ ”) A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power; A driving device for driving the plurality of concentrating solar cell panels; A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit, A concentrating solar power generation device including a tracking device, Each of the concentrating solar cell panels (hereinafter also referred to as “concentrating solar cell panel ⁇ ”) A concentrator that collects sunlight; A highly transmissive plate that receives the sunlight collected by the condenser and transmits at least a scattered light component of the sunlight; A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and A circuit provided on a part of the surface of the highly transmissive plate and electrically connectable to the solar battery cell; Each of the solar cells is dispersedly disposed on the surface of the highly transmissive plate, The solar cell
  • a concentrating solar power generation device (hereinafter, also referred to as “concentrating solar power generation device ⁇ ”) A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power; A driving device for driving the plurality of concentrating solar cell panels; A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit, A concentrating solar power generation device including a tracking device, Each of the concentrating solar cell panels (hereinafter also referred to as “concentrating solar cell panel ⁇ ”) A concentrator that collects sunlight; A highly transmissive plate that receives the sunlight collected by the condenser and transmits at least a scattered light component of the sunlight; A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and A circuit provided on a part of the surface of the highly transmissive plate and electrically connectable to the solar battery cell; Each of the solar cells is dispersedly disposed on the surface opposite to the light receiving surface of the high transmitt
  • a concentrating solar power generation device (hereinafter, also referred to as “concentrating solar power generation device ⁇ ”), A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power; A driving device for driving the plurality of concentrating solar cell panels; A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit, A concentrating solar power generation device including a tracking device, Each of the concentrating solar cell panels (hereinafter also referred to as “concentrating solar cell panel ⁇ ”) A concentrator that collects sunlight; A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and A circuit electrically connectable to the solar cell, The plurality of solar cells are arranged in a distributed manner in the concentrating solar cell panel, with spaces provided between them.
  • the total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area
  • the tracking device is Made of a material that transmits the scattered light component from the sunlight,
  • a plurality of trackers each mounting the plurality of concentrating solar cell panels;
  • Each of the plurality of trackers is A holding member for mounting the concentrating solar cell panel;
  • the plurality of concentrating solar cell panels are centrally controlled by one control device via the plurality of trackers.
  • the concentrating solar power generation device ⁇ is provided with the concentrating solar cell panel ⁇ , and the concentrating solar power generation device ⁇ is provided with the concentrating solar cell panel ⁇ .
  • the concentrating solar power generation device ⁇ is provided with a concentrating solar cell panel ⁇ . Scattering caused by concentrating solar cell panels ⁇ , ⁇ , and ⁇ , especially by concentrating solar cell panels ⁇ and ⁇ , such as a decrease in conversion efficiency due to temperature rise in conventional concentrating solar cell panels Light can be transmitted at a high rate.
  • the concentrating solar cell panels ⁇ , ⁇ , and ⁇ particularly according to the concentrating solar cell panels ⁇ and ⁇ , it is not possible with a normal non-condensing solar cell panel or a low-magnification concentrating solar cell panel.
  • the incident light it is possible to use the scattered light for purposes other than power generation, and it is also possible to generate power by condensing direct light at a high magnification.
  • the concentrating solar cell panels ⁇ , ⁇ , and ⁇ have a high heat dissipation characteristic in which a decrease in the condensing rate is suppressed as much as possible even when the focal point is misaligned.
  • the concentrating solar cell panels ⁇ , ⁇ , and ⁇ if another low-cost solar cell is installed on the lower surface side of the solar cell, it is possible to generate power from scattered light and further increase the power generation amount. it can.
  • each of the trackers on which the concentrating solar cell panels ⁇ , ⁇ , and ⁇ are mounted can be driven by the driving device.
  • the concentrating solar power generation devices ⁇ , ⁇ , and ⁇ that are distributed and movable and have a tracking device with a simple structure can be realized at low cost.
  • Each of the plurality of trackers drives at least three points on the holding member based on the controlled driving amount of the driving device, so that the concentrating solar cell panel is set in advance.
  • Tracking It is preferable that the driving device includes at least three driving units that respectively drive the at least three points of the holding member.
  • the concentrating solar cell panel ⁇ is simple in structure. , ⁇ , and ⁇ can be more accurately tracked to the solar orbit.
  • the tracking mechanism is A support column supporting the holding member; A base portion that supports the support portion, It is preferable that a ring for connecting the holding member and the support column is further provided.
  • the holding member and the support column are connected by the ring, the holding member is driven smoothly through the ring.
  • the concentrating solar cell panels ⁇ , ⁇ , and ⁇ can be more accurately tracked in the solar orbit.
  • a gantry on which the tracking device is mounted further comprises a rectangular case made of a transparent member provided to cover the entire tracking device, It is preferable that at least one surface of the case is inclined.
  • a cleaning device for cleaning the light receiving side surface of each of the concentrating solar cell panels is further provided above the plurality of concentrating solar cell panels.
  • the light receiving side surfaces of the concentrating solar cell panels ⁇ , ⁇ , and ⁇ are maintained in a cleaner state, and the concentrating solar power generation devices ⁇ , ⁇ , and ⁇ have higher power generation efficiency.
  • the direct light can be blocked at a higher ratio, and the scattered light can be transmitted more efficiently.
  • the plurality of tracking devices are preferably driven simultaneously by one control device via the driving device.
  • a plurality of tracking devices can be centrally controlled via one control device, and a concentrating solar power generation device ⁇ , ⁇ , and ⁇ having a plurality of tracking devices with a simple structure is realized. can do.
  • the present invention it is possible to collect direct light at a high magnification and generate power with high efficiency and to cut off at a high ratio, and at the same time, it can efficiently transmit scattered light and be used for multiple purposes.
  • a concentrating solar power generation apparatus that is small in size, excellent in installation convenience and transportability in transportation, and having an open feeling at low cost.
  • FIG. 1A and 1B are schematic explanatory views showing a configuration example of a concentrating solar cell panel according to Example 1, where FIG. 1A is a plan view and FIG. 1B is a cross-sectional view.
  • FIG. 2 is a diagram illustrating a result of predicting the temperature of the solar battery cell by thermal analysis simulation in Example 1.
  • FIG. 3 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 2, in which (a) is a plan view and (b) is a cross-sectional view.
  • FIG. 4 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 3, where (a) is a plan view and (b) is a cross-sectional view.
  • FIG. 1A and 1B are schematic explanatory views showing a configuration example of a concentrating solar cell panel according to Example 1, where FIG. 1A is a plan view and FIG. 1B is a cross-sectional view.
  • FIG. 2 is
  • FIG. 5 is a schematic explanatory diagram (cross-sectional view) showing a configuration example of a concentrating solar cell panel according to Example 4.
  • FIG. 6 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel according to Examples 5 and 6, where (a) is a cross-sectional view of the concentrating solar cell panel, and (b) is a cross-sectional view of the cell package.
  • FIG. 3C is a cross-sectional view of the cell package.
  • FIG. 7 is a schematic explanatory view illustrating a configuration example of a concentrating solar cell panel according to Example 7, in which (a) is a cross-sectional view and (b) is a plan view.
  • FIG. 6 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel according to Examples 5 and 6, where (a) is a cross-sectional view of the concentrating solar cell panel, and (b) is a cross-sectional view of the cell package.
  • FIG. 3C is
  • FIG. 8 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 8, where (a) is a cross-sectional view of the concentrating solar cell panel, and (b) is a cross-sectional view of the cell package. is there.
  • FIG. 9 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 9, in which (a) is a plan view and (b) is a cross-sectional view.
  • FIG. 10 is a schematic explanatory diagram illustrating an example of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention.
  • FIG. 11 is a schematic explanatory diagram showing an example of the structure of a tracker constituting the tracking device in an embodiment of the present invention.
  • FIG. 12 is a schematic explanatory view showing a structure example of a folded state of the tracker constituting the tracking device in one embodiment of the present invention, and (a) is a diagram seen from substantially above the tracker. ) Is a diagram seen from the lateral direction of the tracker.
  • FIG. 13 is a schematic explanatory diagram showing an example of a wiring / transmission shaft structure for realizing control of the tracking device constituting the concentrating solar power generation device according to the embodiment of the present invention.
  • FIG. 14 is a schematic explanatory diagram illustrating an example of a wiring / transmission shaft structure for realizing control of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention.
  • FIG. 12 is a schematic explanatory view showing a structure example of a folded state of the tracker constituting the tracking device in one embodiment of the present invention, and (a) is a diagram seen from substantially above the tracker. ) Is a diagram seen from the lateral direction of the tracker.
  • FIG. 15 is a schematic explanatory diagram illustrating an example of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention.
  • FIG. 16 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar power generation device including a plurality of tracking devices according to an embodiment of the present invention.
  • FIG. 17 is a schematic explanatory diagram illustrating an example of a tracking device that constitutes a concentrating solar power generation device including a cleaning device according to an embodiment of the present invention.
  • FIG. 16 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar power generation device including a plurality of tracking devices according to an embodiment of the present invention.
  • FIG. 17 is a schematic explanatory diagram illustrating an example of a tracking device that constitutes a concentrating solar power generation device including a cleaning device according to an embodiment of the present invention.
  • FIG. 18 is a diagram three-dimensionally illustrating a configuration example of a concentrating solar power generation device according to an embodiment of the present invention, and (a) is a diagram of the concentrating solar power generation device including a tracking device, (B) is a figure of the concentrating solar power generation device provided with the some tracking apparatus.
  • FIG. 19 is a diagram three-dimensionally showing an example of mounting the concentrating solar power generation device according to one embodiment of the present invention.
  • FIG. 20 is a schematic explanatory diagram illustrating a configuration example of a ribbon used for the tracker of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention, and (a) is a straight line before winding.
  • the state figure and (b) are the figure of the state wound up.
  • FIG. 21 is the schematic of the tracking apparatus which comprises the concentrating solar power generation device which concerns on one Embodiment of this invention used for the experiment example, (a) is a schematic top view of a tracking apparatus, (b) Is a schematic side view of the tracking device in the longitudinal direction, and (c) is a schematic side view of the tracking device in the short direction.
  • FIG. 22 is a schematic perspective view of a solar cell module used in the experimental example, in which no light-shielding object is disposed.
  • FIG. 23 is a schematic perspective view of a solar cell module used in the experimental example in which the tracking device shown in FIG. 21 is arranged.
  • FIG. 24 is a schematic perspective view of a solar cell module used in the experimental example and provided with a light blocking object.
  • FIG. 25 is an IV curve showing the results of a sunlight transmission / light-shielding experiment performed using each of the solar cell modules shown in FIGS.
  • the concentrating solar power generation devices ⁇ and ⁇ are collectively referred to as a concentrating solar power generation device I, and the concentrating solar power generation device ⁇ is also referred to as a concentrating solar power generation device II. .
  • the concentrating solar power generation apparatus ⁇ is at least: (1) A plurality of concentrating solar cell panels ⁇ arranged in an array and converting sunlight into electric power, (2) a driving device for driving a plurality of concentrating solar cell panels ⁇ ; (3) a control device that controls the drive amount of the drive device so that the plurality of concentrating solar cell panels ⁇ track a preset solar orbit, (4) A tracking device is provided.
  • the concentrating solar power generation apparatus ⁇ is at least: (1) A plurality of concentrating solar cell panels ⁇ arranged in an array and converting sunlight into electric power; (2) a driving device for driving a plurality of concentrating solar cell panels ⁇ ; (3) a control device that controls the drive amount of the drive device so that the plurality of concentrating solar cell panels ⁇ track a preset solar orbit; (4) A tracking device is provided.
  • the concentrating solar power generation device ⁇ is at least: (1) a plurality of concentrating solar cell panels ⁇ arranged in an array and converting sunlight into electric power; (2) a driving device for driving a plurality of concentrating solar cell panels ⁇ , (3) a control device that controls the drive amount of the drive device so that a plurality of concentrating solar cell panels ⁇ track a preset solar orbit, (4) A tracking device is provided.
  • Each of the concentrating solar cell panel ⁇ provided in the concentrating solar power generation device ⁇ and each of the concentrating solar cell panel ⁇ provided in the concentrating solar power generation device ⁇ is at least the following: (1-1) to (1-4) are provided.
  • the concentrating solar cell panels ⁇ and ⁇ are collectively referred to as a concentrating solar cell panel I.
  • (1-1) A collector for collecting sunlight (1-2)
  • a circuit provided on a part of the surface of the high transmission plate and electrically connectable to the solar cells
  • each of the solar battery cells is dispersedly arranged on the surface of the high transmission plate.
  • the total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area
  • the light receiving area of the high transmission plate is 80% or more of the total sunlight incident area.
  • the total light receiving area of each member that is arranged on the high transmission plate and is connected to the solar cell to constitute the electric circuit is It is preferably set to less than 10% of the total sunlight incident area. If the total light receiving area of the solar battery cell exceeds 10% of the total sunlight incident area, it becomes difficult to produce a target concentrating solar battery panel I with ultra-high magnification.
  • the light-receiving area of the high-transmitting plate is less than 80% of the total sunlight incident area, not only is the scattered light used for other purposes other than power generation, but it remains in the panel without being transmitted. Scattered light becomes extra heat, increasing the risk of adversely affecting the equipment in the panel.
  • the concentrating solar cell panel I will be described in detail based on examples shown in the drawings.
  • the concentrating solar cell panel I used for this invention is not limited to these Examples at all.
  • FIG. 1 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel ⁇ according to the first embodiment.
  • Fig.1 (a) shows the top view of the concentrating solar cell panel 10 (10a).
  • FIG. 1B shows a cross-sectional view of the concentrating solar cell panel 10 (10a) taken along the line AA ′ of FIG.
  • the concentrating solar cell panel 10 a includes a concentrator (cell-sealed concentrator) 11 that condenses sunlight, a high transmission plate 12, It is comprised from the photovoltaic cell 13, the metal film 14, the metal wire 15 which electrically connects the photovoltaic cells 13 and 13, and the lead wire 16 which takes out the generated electric power of a group of photovoltaic cells 13 outside. ing.
  • a concentrator cell-sealed concentrator
  • the high transmission plate 12 is preferably made of a material having a sunlight transmittance of 80% or more, and a plate material made of a resin such as an acrylic resin or a polycarbonate resin can be used in addition to a glass plate.
  • the metal film 14 is preferably made of a material having high electrical conductivity, and for example, a metal such as copper, aluminum, or gold can be used. Moreover, not only a metal but a material with high electrical conductivity can be used as the metal film 14.
  • the metal film 14 is formed in close contact with the surface of the high transmission plate 12 on the collector 11 side, and two metal films 14 a and 14 b are formed on one island 13.
  • the back electrode (in this case, the + electrode) of the solar battery cell 13 is formed in close contact with the surface of the one metal film 14a on the collector 11 side. Further, a metal wire 15 is bonded from the surface electrode (here, the negative electrode) of the solar battery cell 13 to the surface of the other metal film 14b.
  • the circuit connection configuration as described above is employed in order to improve productivity, but the present invention is not necessarily limited thereto. You may employ
  • the metal wire 15 for example, a metal having high electrical conductivity such as copper, aluminum, or gold can be used.
  • the solar cells 13 are electrically connected in 4 series and 4 parallel (4 ⁇ 4 array), and are connected to the negative and positive lead wires 16 and 16 attached to the elongated metal films 14t and 14t at both ends. The generated power can be taken out.
  • a thin strip-shaped metal plate or the like can also be used as the metal wire 15, in addition to a thin wire having a diameter of several tens of microns used for wire bonding.
  • the series and parallel connection patterns can be arbitrarily set according to the level of current and voltage to be extracted.
  • the circuit includes the metal film 14 and the metal wire 15, and the metal film 14 dispersively disperses on the surface of the high transmission plate 12 while supporting the solar cell 13.
  • the metal wire 15 is installed in close contact with the highly transmissive plate 12 so as to be electrically insulated, and the metal wire 15 electrically connects between the metal film 14 and the solar battery cell 13 to form a series or parallel electric circuit. It is composed.
  • the concentrator 11 is placed so that all the constituent members of the solar cell 13 on the concentrator 11 side of the high transmission plate 12, the metal film 14, and the metal wire 15 are sealed with the material of the concentrator 11.
  • the light receiving side surface of the condenser 11 is a dome-shaped lens array.
  • the material of the collector 11 is suitably a transparent acrylic resin, a transparent silicone resin, glass, or the like. In such a collector 11, the incident light beam is refracted only once at the boundary surface between air having a low refractive index and a lens array having a high refractive index. Suitable for light magnification.
  • a concentrator 11 manufactured in advance by injection molding or the like, and other constituent members using another transparent material having a refractive index substantially equal to the refractive index of the material of the concentrator 11 and having an adhesive action The same effect can be obtained even when these are joined.
  • the direct light L1 is transmitted by the concentrator 11 as shown in FIG. It is condensed on the battery cell 13 and converted into electricity.
  • the scattered light L2 incident from all directions is not condensed on the solar battery cell 13, and most of the light passes through (transmits) the high transmission plate 12.
  • the ratio of the circuit area is preferably less than 10%.
  • the photovoltaic cell 13 what has the cell conversion efficiency at the time of condensing of 35% or more, such as a compound type multi-junction solar cell, is preferable.
  • the solar cells 13 are preferably as small as possible.
  • the focal length FL shown in FIG. 1B is shortened, and the overall height of the condenser 11 can be suppressed low.
  • the amount of light absorption inside the collector 11 is reduced, and the light transmission is improved.
  • the size of the solar battery cell 13 is reduced, the temperature reached by the solar battery cell 13 is lowered due to the effect of the heat source being dispersed, as shown in the thermal analysis simulation result described later (see FIG. 2). Efficiency and long-term reliability are improved.
  • a solar battery cell 13 having a size of 1 mm ⁇ 1 mm or less, more preferably 0.5 mm ⁇ 0.5 mm or less. This size is similar to that of an LED chip, and there is an advantage that an LED mounting technology can be applied (applied).
  • a material having high electrical insulation may be inserted between the metal film 14 and the high transmission plate 12. Further, the metal wire 15 may be coated with a material having high electrical insulation.
  • various bonding methods such as a plating method, a brazing method, a solid phase bonding method, a welding method, and a molten metal bonding method are employed in addition to using a highly conductive adhesive. be able to.
  • the direct light L1 is a substantially parallel sunlight ray (viewing angle ⁇ 0.256 ° to ⁇ 5 °) that is directly incident from the sun's photosphere and its vicinity, and the scattered light L2 is scattered by fine particles or gas in the atmosphere. Sun rays entering from the whole sky.
  • the direct light L1 can be condensed at a high magnification by a lens or a mirror, but the scattered light L2 has a characteristic that it can only be weakly condensed due to thermodynamic limitations.
  • direct light L1 accounts for about 60% of the annual solar radiation
  • scattered light L2 accounts for the remaining 40%.
  • direct light L1 which accounts for about 60% of the amount of solar radiation
  • direct light L1 is collected in an ultra-high efficiency solar cell 13 having a cell conversion efficiency of about 40% (more than 50% is expected in the future). While generating light, it transmits most of the scattered light L2, which accounts for about 40% of the amount of solar radiation per year.
  • the scattered light L2 does not hit the solar battery cell 13 and is transmitted, but since the conversion efficiency of the solar battery cell 13 is high and a tracking device described later is provided, The amount of received direct light L1 increases.
  • the concentrating solar cell panel 10a As a result, in the concentrating solar cell panel 10a, a power generation amount that is greater than that of the conventional solar cell panel is realized even from the direct light L1. And since most of the scattered light L2 permeate
  • Example 2 the result of having predicted the temperature of the photovoltaic cell 13 by thermal analysis simulation in Example 1 is shown.
  • the scattered light transmittance of 70% is Example 1 (the present invention), and for comparison, a conventional example of scattered light transmittance of 0% is also shown.
  • the analysis conditions of this thermal analysis are as follows.
  • Direct light 600 W / m 2
  • Scattered light 400 W / m 2 Outside temperature: 25 °C
  • Convective heat transfer coefficient h 5.7 W / m 2 K (no wind)
  • Geometric condensing magnification 300 times When the cell size is 1 mm ⁇ 1 mm, the light receiving surface size is 17.32 mm ⁇ 17.32 mm, and the geometric light condensing is obtained by dividing the light receiving surface area by the cell area. The magnification is 300 times. Therefore, the light receiving area (including the circuit area) of the highly transmissive plate 12 is 90% or more of the total sunlight incident area.
  • the circuit of the metal film 14 is usually opaque, considering this, 80% or more is set as the light receiving (transmitting) area of the high transmission plate 12 effective for transmission.
  • this light receiving (transmitting) area 80% is multiplied by the sunlight transmittance 90% of the material of the high transmission plate 12, the scattered light transmittance is about 70%.
  • Example 1 the present invention
  • the cell temperature is about 100 ° C., which satisfies the temperature use condition of a compound multi-junction solar cell or the like.
  • the cell size is made small (for example, 0.5 mm x 0.5 mm)
  • it turns out that cell temperature falls further. This is because the cell peripheral length (heat dissipating surface) with respect to the cell area increases by reducing the cell size and the heat resistance is reduced by reducing the lens focal length, etc. Because it is done.
  • FIG. 3 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel ⁇ according to the second embodiment.
  • Fig.3 (a) shows the top view of the concentrating solar cell panel 10 (10b).
  • FIG. 3B shows a cross-sectional view of the concentrating solar cell panel 10 (10b) taken along the line BB ′ in FIG.
  • the concentrating solar cell panel 10b is comprised from the same member as the concentrating solar cell panel 10a which concerns on Example 1, in the electrical connection of the photovoltaic cells 13 and 13, shorten the metal wire 15, Instead, the metal film 14 is lengthened.
  • the area of the opaque portion is slightly increased as compared with the concentrating solar cell panel 10a according to Example 1, but it is easy to reduce the series resistance of the connection circuit. In the case of a high current, the conversion efficiency can be maintained.
  • FIG. 4 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel ⁇ according to the third embodiment.
  • Fig.4 (a) shows the top view of the concentrating solar cell panel 10 (10c).
  • FIG. 4B is a cross-sectional view of the concentrating solar cell panel 10 (10c) taken along the line CC ′ in FIG.
  • the concentrating solar panel 10c is different from the concentrating solar panel 10a according to the first embodiment and the concentrating solar panel 10b according to the second embodiment. 13 and 13 are different in electrical connection method.
  • the collector 11 will be explained. Unlike Example 1 and 2, in Example 3, the air layer 17 exists between the surface which mounted the collector 11 and the photovoltaic cell 13 as shown in FIG.4 (b). Due to the presence of the air layer 17, incident light rays are refracted at the interface between the collector material (lens material) having a high refractive index and the air having a low refractive index when exiting from the collector 11. The direction changes. Therefore, such a separate concentrator 11 is suitable when the light condensing magnification is as high as about 300 times or more. Further, as the separate type condenser 11, a thin condenser such as a Fresnel lens is suitable.
  • the third embodiment has a configuration in which a transparent conductive film (for example, an ITO film) 18 bears most of the electrical connection.
  • a transparent conductive film for example, an ITO film
  • two metal films 14 a and 14 b are formed in an island shape with respect to one solar battery cell 13, but transparent between the metal films 14 a and 14 b and the high transmission plate 12.
  • the conductive film 18 is patterned by sputtering or the like.
  • the solar cells 13 and 13 are electrically connected to each other by the metal wire 15.
  • the transparent conductive film 18 electrically connects the solar cells 13 and 13 to each other. Connected to.
  • the circuit includes the metal film 14, the metal wire 15, and the transparent conductive film 18, and the metal film 14 supports the solar battery cell 13 and the surface of the highly transmissive plate 12.
  • the metal wire 15 and the transparent conductive film 18 are electrically connected between the metal film 14 and the solar battery cell 13 so as to be dispersed and in close contact with the highly transmissive plate 12. Connected to form a series or parallel electric circuit.
  • a complicated series-parallel connection circuit can be formed relatively easily by patterning, and the transmittance can be further improved as compared with the first and second embodiments.
  • the solar cells 13 may be directly disposed on the transparent conductive film 18 without providing the metal films 14a and 14b.
  • a layer made of another material is inserted between both members. May be.
  • FIG. 5 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel ⁇ according to the fourth embodiment, and shows a cross-sectional view of the concentrating solar cell panel 10 (10d).
  • Example 4 a low-cost non-condensing solar cell 23 is installed on the lower surface side of the high transmission plate 12 in the concentrating solar cell panel 10b according to Example 2.
  • transmitted the highly transmissive board 12 of the concentrating solar cell panel 10d can be converted into electricity. That is, unlike the first to third embodiments, in the fourth embodiment, the scattered light L2 transmitted through the high transmission plate 12 is used to further improve the total power generation amount of the concentrating solar power generation device ⁇ . be able to.
  • FIGS. 6A and 6B are schematic explanatory diagrams illustrating a configuration example of the concentrating solar cell panel ⁇ according to the fifth embodiment.
  • Fig.6 (a) shows sectional drawing of the concentrating solar cell panel 10 (10e).
  • FIG. 6B shows a cross-sectional view of the cell package 30 (30e1).
  • the concentrating solar cell panel has an extremely high magnification, the panel is easily out of focus even with a slight tracking error due to the tracking mechanism provided in the concentrating solar power generation device. For this reason, it is desirable that the ultrahigh-magnification concentrating solar panel be provided with a structure capable of ensuring and maintaining condensing on the solar cells even when the focus is slightly deviated. .
  • the concentrating solar cell panel 10e according to Example 5 is an example of a panel that can sufficiently secure and maintain the condensing light on the solar cells 13 regardless of a slight shift in focus.
  • the method of mounting the solar battery cell 13 on the metal film circuit is as follows. As shown in FIGS. 6A and 6B, the solar battery cell 13 and members such as the light receiving guide 31, the conductive cell mounting member (die attach member) 32, the insulator 33, and the conductive bridge 34 are previously provided. A plurality of integrated cell packages 30e1 are prepared (in a separate process), and a structure in which positive and negative electrode planes are connected to the lower surface of the cell package 30e1 (in this embodiment, the lower surface of the conductive bridge 34) is provided. At this time, the light receiving guide 31 and the conductive bridge 34 are also insulated by the insulator.
  • Adhesion is completed by mounting the cell package 30e1 on the metal film 14 in which the solder 35 has been applied in advance to the connection locations and heating in a reflow furnace or the like.
  • Such a mounting method is suitable for mass production because a large number of cell packages 30e1 can be mounted at high speed by a robot or the like.
  • the light receiving guide 31 in the cell package 30e1 further includes a reflecting surface 31a that reflects the sunlight collected by the condenser 11 and guides it to the light receiving surface of the solar battery cell 13.
  • the illustrated reflecting surface 31 a is an inclined surface that is inclined while narrowing toward the solar battery cell 13.
  • the inclined surface is preferably a quadrangular pyramid when the solar battery cell 13 has a quadrangular shape, and preferably has a conical shape when the solar battery cell 13 has a circular shape.
  • a rotational composite paraboloid shape or the like may be used.
  • the reflecting surface 31a it is preferable to use aluminum, silver or the like and perform a treatment such as vapor deposition or plating with high reflectance so that the mirror reflectance is 80% or more.
  • FIG. 6A and 6C are schematic explanatory diagrams illustrating a configuration example of the concentrating solar cell panel ⁇ according to the sixth embodiment.
  • Fig.6 (a) shows sectional drawing of the concentrating solar cell panel 10 (10e).
  • FIG. 6C shows a cross-sectional view of the cell package 30 (30e2).
  • the concentrating solar cell panel 10e according to the sixth embodiment focuses light on the solar cells 13 regardless of a slight shift in focus. It is an example of a panel that not only can be sufficiently secured and maintained, but also has improved and improved heat dissipation performance.
  • the cell package 30e2 according to the sixth embodiment has substantially the same configuration as that of the cell package 30e1 according to the fifth embodiment. However, as shown in FIG.
  • the heat dissipating fin 36 having a part of the guide 31 (preferably made of aluminum) protruded is provided. In order to improve the heat radiation performance while maintaining the transmittance, the heat radiation fin 36 is projected so that the projection surface of the heat radiation fin 36 substantially overlaps the metal film 14 when the cell package 30e2 is viewed from directly above. 36 is preferably arranged.
  • FIG. 7 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel ⁇ according to the seventh embodiment.
  • Fig.7 (a) shows sectional drawing of the concentrating solar cell panel 10 (10f).
  • FIG.7 (b) shows the top view of the concentrating solar cell panel 10 (10f).
  • Example 7 aims to further reduce the temperature of the solar battery cell 13 as in Example 6 above.
  • the honeycomb structure material 37 is disposed on the lower surface of the high transmission plate 12. It is affixed to.
  • the material of the honeycomb structure material 37 may be a transparent resin or the like in addition to a metal such as aluminum. When metal is used, it becomes opaque, so it is necessary to suppress the height (thickness) of the honeycomb structure material 37. Further, the installation of the honeycomb structure material 37 increases the heat radiation area.
  • FIGS. 8A and 8B are schematic explanatory diagrams illustrating a configuration example of the concentrating solar cell panel ⁇ according to the eighth embodiment.
  • Fig.8 (a) shows sectional drawing of the concentrating solar cell panel 10 (10g).
  • FIG. 8B shows a cross-sectional view of the cell package 30 (30g).
  • the heat dissipation performance of the concentrating solar cell panel 10g according to Example 8 is promoted and improved. It is an example of the made panel.
  • the thickness of a high transmission plate such as a glass plate is required to be about 3 to 5 mm in order to ensure the rigidity of the concentrating solar cell panel.
  • the solar battery cell is likely to reach a high temperature because the thermal resistance between the solar battery cell, the high transmission plate and the outside air is high.
  • Reference numeral 34 b denotes a conductor that connects the conductive bridge 34 and the metal film 14.
  • the thickness of the sealing material 38 can be arbitrarily adjusted without worrying about panel rigidity.
  • the distance LB from the position of the cell 13 to the outside air can be much shorter.
  • the thermal radiation amount of the concentrating solar cell panel 10g can be increased, and the temperature of the solar cell 13 is reduced.
  • a heat radiating fin a heat spreader or the like (none of which is shown) in the vicinity of the cell package 30g.
  • a heat spreader it is preferable to use a thin film having a high thermal conductivity in the surface direction, such as a graphene sheet.
  • the outside air side surface of the sealing material 38 can be subjected to a treatment such as antifouling coating and a hard coat resistant to scratches.
  • Each of the concentrating solar cell panels ⁇ included in the concentrating solar power generation device ⁇ includes at least the following (1′-1) to (1′-3).
  • the concentrating solar cell panel ⁇ is also referred to as a concentrating solar cell panel II.
  • (1'-1) Concentrator for concentrating sunlight
  • (1'-2) A plurality of solar cells
  • (1'-3) solar cells that receive sunlight collected by the concentrator and generate electric power Circuits that can be electrically connected to cells
  • the plurality of solar cells are arranged in a distributed manner with spaces therebetween.
  • the total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area.
  • the total light receiving area (total area that blocks the incident of scattered light from sunlight other than solar cells) of each member that constitutes an electric circuit connected to the solar cells is less than 10% of the total sunlight incident area It is preferable that it is set to. If the total light receiving area of the solar battery cell exceeds 10% of the total sunlight incident area, it becomes difficult to produce a target concentrating solar battery panel II with a super-high magnification.
  • the concentrating solar cell panel II basically has a structure in which a highly transmissive plate is removed from the structure of the concentrating solar cell panel I, and the material and arrangement of its constituent members are the concentrating solar cell. It may be the same as that of panel I.
  • FIG. 9 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel ⁇ according to the ninth embodiment.
  • Fig.9 (a) shows the top view of the concentrating solar cell panel 10 (10h).
  • FIG. 9B shows a cross-sectional view of the concentrating solar cell panel 10 (10h) taken along the line HH ′ of FIG. 9A.
  • the concentrating solar cell panel ⁇ according to Example 9 has a structure in which the high-transmitting plate 12 is removed from the structure of the concentrating solar cell panel ⁇ according to Example 1 illustrated in FIG. 1, for example.
  • a concentrating solar panel 10 shown in FIG. 9 includes a concentrator (cell-sealed concentrator) 11 that condenses sunlight, a solar cell 13, a metal film 14, and a solar cell 13. , 13 are electrically connected to each other, and a lead wire 16 that takes out a group of generated power of the solar battery cell 13 to the outside.
  • the plurality of metal films 14 and the solar cells 13 on the surfaces thereof are respectively provided on the surface of the support member 19b.
  • the plurality of support members 19b are arranged in a housing (not shown) of the concentrating solar cell panel 10 with a space 19a provided therebetween.
  • the metal film 14 is formed in close contact with the surface of the support member 19b on the collector 11 side, and two metal films 14a and 14b are formed in an island shape with respect to one solar cell 13. And the back surface electrode (here + electrode) of the photovoltaic cell 13 is closely_contact
  • the circuit connection configuration as described above is employed in order to improve productivity, but the present invention is not necessarily limited thereto. You may employ
  • the circuit includes a metal film 14 and a metal wire 15, and the metal wire 15 electrically connects the metal film 14 and the solar battery cell 13 to provide electric power in series or in parallel.
  • the circuit is configured.
  • the collector 11 is formed so that all the constituent members of the solar battery cell 13, the metal film 14, and the metal wire 15 are sealed with the material of the collector 11.
  • the light-receiving side surface of the condenser 11 is a dome-shaped lens array.
  • the direct light L1 is transmitted by the concentrator 11 as shown in FIG. It is condensed on the battery cell 13 and converted into electricity.
  • the scattered light L2 incident from all directions is not condensed on the solar cells 13, and most of the light passes through the space 19 a between the solar cells 13.
  • the support member 19b may be arrange
  • a member made of a resin such as an acrylic resin or a polycarbonate resin in addition to a glass member can be used as the support member 19b.
  • the ratio of the circuit area is preferably less than 10%.
  • the direct light L1 is collected and generated on the ultra-high efficiency solar cell 13 having a cell conversion efficiency of about 40%, while most of the scattered light L2 is transmitted.
  • the scattered light L2 does not hit the solar battery cell 13 and is transmitted, but since the conversion efficiency of the solar battery cell 13 is high and a tracking device described later is provided, The amount of received direct light L1 increases.
  • the concentrating solar cell panel 10h a power generation amount that is greater than that of the conventional solar cell panel is realized even from the direct light L1 alone.
  • the concentrating solar power generation device ⁇ can be used for other applications that require sunlight as described later. It is.
  • the concentrating solar cell panel 10h is a new concentrating solar cell panel that can distribute precious sunlight to power generation and other uses without waste.
  • FIG. 10 is a schematic explanatory view showing an example of the tracking device constituting the concentrating solar power generation device according to the embodiment of the present invention.
  • the tracking device 500 includes a plurality of trackers 100 on which each of the concentrating solar cell panels 10 arranged in an array is mounted.
  • the tracking device 500 is disposed on a gantry 20a provided on a base 20c via a column 20b.
  • the size of the tracker 100 is preferably about 10 cm to 50 cm square, for example, and the size of the tracker 500 is preferably about 1 m ⁇ 2 m, for example.
  • each of the concentrating solar cell panels 10 mounted on the tracking device 500 is inclined upward toward the north side, but the gantry 20a may be inclined in other directions. You don't have to.
  • the number of concentrating solar cell panels 10 arranged in an array, the size of the tracker 100, the size of the tracking device 500, etc. are merely examples, and these are shown in FIG. It is not limited to.
  • the tracking device 500 is made of a material that transmits a scattered light component that has passed through the highly transmissive plate 12 provided in the concentrating solar cell panel 10 or a scattered light component that has passed through the space 19 a between the solar cells 13.
  • the plurality of trackers 100 provided in the tracking device 500 are preferably made of a material having a sunlight transmittance of 80% or more, like the high-transmitting plate 12, and other than glass, such as acrylic resin, polycarbonate resin, and the like. Resin can be used.
  • the tracking device 500 is made of a material that transmits the scattered light component that has passed through the high-transmitting plate 12 or the scattered light component that has passed through the space 19a between the solar cells 13, the tracking device 500 In addition, the scattered light can be transmitted efficiently, and the utility value of the concentrating solar cell panel 10 capable of transmitting the scattered light can be further increased.
  • the tracking device 500 is arranged in the concentrating solar power generation device according to the present embodiment in that the utility value of the concentrating solar cell panel 10 capable of transmitting scattered light as described above is further increased.
  • the gantry 20a, the support column 20b, and the base 20c also transmit the scattered light component that has passed through the highly transmissive plate 12 or the scattered light component that has passed through the space 19a between the solar cells 13. It is preferable that it is comprised with the material to do.
  • FIG. 11 is a schematic explanatory diagram illustrating an example of the structure of the tracker 100 included in the tracking device 500 in the present embodiment.
  • FIG. 12 is a schematic explanatory diagram illustrating an example of the structure of the tracker 100 that configures the tracking device 500 in the folded state in the embodiment.
  • FIG. 12A is a view of the tracker 100 viewed from substantially above.
  • FIG. 12B is a diagram of the tracker 100 viewed from a substantially lateral direction.
  • FIG. 13 is a schematic explanatory diagram illustrating an example of a wiring / transmission shaft structure for realizing control of the tracking device 500 configuring the concentrating solar power generation device according to the present embodiment.
  • a concentrating solar power generation apparatus includes a tracking device 500 that includes a plurality of concentrators 100 shown in FIG.
  • the driving device 450 shown in FIG. 13 that drives the optical solar cell panel 10 and the drive amount of the driving device 450 are controlled so that the plurality of concentrating solar cell panels 10 track a preset solar orbit.
  • it has the control apparatus 400 shown in FIG.
  • the tracker 100 is connected to the holding member 110, for example, a T-shaped holding member 110 (consisting of a 110a portion and a 110b portion) on which the concentrating solar cell panel 10 is mounted on the upper surface. And a tracking mechanism.
  • the tracking mechanism is installed and used on the gantry 20a shown in FIG. 10 in a state where the concentrating solar cell panel 10 is mounted on the holding member 110 to be connected.
  • the tracker 100 drives the at least three points of the holding member 110 based on the controlled driving amount of the driving device 450, so that the concentrating solar cell panel 10 is preset. Configured to track the solar orbit.
  • the shape of the holding member 110 is T-shaped.
  • the three points on the T-shaped holding member 110 include, for example, three end portions (corresponding to the first drive point, the second drive point, and the third drive point).
  • the first end A and the second end B as a pair of ends facing each other include, for example, a first ribbon AT and a second end as shown in FIG.
  • the ribbons BT are respectively attached by screws, for example.
  • wire CT is attached to the 3rd end C as the remaining end via the opening Ch, for example.
  • elastic members such as a spring, for example in wire CT.
  • such a configuration is not required for the wire CT portion to be precisely controlled as to the first ribbon AT and the second ribbon BT, but the first ribbon AT and the second ribbon BT. This is because it is effective that an elastic member such as a spring is interposed in order to return the ribbon BT to the original position at a necessary timing.
  • the driving device 450 shown in FIG. 13 performs winding of each of the first ribbon AT and the second ribbon BT, for example, a first driving device 450a (first motor) that is a servo motor and a second driving.
  • a device 450b (second motor) and a third driving device 450c (third motor), for example, a stepping motor, for winding the wire CT are provided.
  • the control device 400 also controls the amount of winding of each of the first drive device 450a, the second drive device 450b, and the third drive device 450c (three drive units of the drive device 450).
  • a load provision member which provides a load to a 3rd drive point can be used instead of a 3rd motor as the 3rd drive device 450c.
  • a constant load spring for applying a constant load can be provided.
  • the tip of the constant load spring may be attached to the third end C without providing the wire CT.
  • the control device 400 controls the amount of winding of the first driving device 450a and the second driving device 450b and the third driving device 450c. The load applied by the driving device 450c is controlled.
  • the third driving device 450c when the third driving device 450c is composed of the load applying member, the remaining one of the three points is returned to the original position from the position where the other two points are driven, for example. Since it only needs to be driven, it can be realized with a structure that does not require precise position control unlike the control of the other two points.
  • each of the trackers 100 on which the concentrating solar cell panel 10 is mounted is driven by the driving device 450.
  • the driving device 450 can do. That is, the concentrating solar cell panel 10 can be more accurately tracked in the solar orbit by a structure in which the positions of the three points on the holding member 110 are controlled and driven.
  • a concentrating solar power generation device that is a distributed movable type and includes a tracking device 500 having a simple structure can be realized at low cost.
  • one control device 400 includes a plurality of concentrating solar cell panels 10 via the plurality of tracking units 100. Central control is possible.
  • the shape of a holding member is not limited to T shape. Absent.
  • the holding member can be of various shapes and can be mounted with a concentrating solar cell panel and can be driven by controlling the position of at least three of them. preferable. Further, as in the present embodiment, the position to be controlled and driven is not limited to three points, and may be four or more points. The number of ribbons, wires, and the like can be appropriately increased according to the number of positions to be controlled and driven.
  • the tracking mechanism includes a support column 150 that supports the holding member 110 and a base unit 210 that supports the support unit 150, and the base unit 210 is interposed via the attachment unit 200. It is installed on the gantry 20a.
  • the attachment unit 200 is shown as being provided in one set corresponding to the tracker 100. However, the attachment unit 200 is attached so that a plurality of trackers 100 are connected and installed on the gantry 20a.
  • the part 200 has a stretched structure.
  • the support column 150 is integrally formed with a head 130 having an opening and a shoulder 140 continuous with the head 130.
  • the holding member 110 and the support column 150 are coupled to each other so that the ring 120 passing through the opening in the head 130 is connected to the bottom of the support column 150.
  • the holding member 110 and the support column 150 are connected by the ring 120 that passes through the opening of the head 130, the driving of the holding member 110 is smoothly performed via the ring 120.
  • the concentrating solar cell panel 10 can be more accurately tracked in the solar orbit.
  • the base portion 210 is provided with a first guide 190a and a second guide 190b for passing the first ribbon AT and the second ribbon BT, respectively, and a protruding portion having an opening portion 230c for passing the wire CT.
  • 230 is further provided.
  • the first ribbon AT and the second ribbon BT can be accurately wound through the first guide 190a and the second guide 190b.
  • the wire CT can be accurately wound through the opening 230c of the protrusion 230.
  • the first ribbon AT, the second ribbon BT, and the wire CT are connected to, for example, the first traction point 320a, the second traction point 330a, and the third traction point 340a in FIG. And is driven by the drive amount of the drive device 450 controlled by the control device 400.
  • the support column 150 is provided with a pair of shoulder portions 140 that limit the driving amount of the holding member 110.
  • the first solar panel AT, the second ribbon BT, and the wire CT are wound with a controlled driving amount so that the concentrating solar cell panel 10 tracks a preset solar trajectory.
  • the holding member 110 is driven.
  • one of the first end A and the second end B, which is a pair of end portions moves according to the driving amount, and the ring 120 that connects the holding member 110 includes the head portion 130.
  • the holding member 110 has a role of preventing the entire holding member 110 from falling down by moving along the moving direction of the pair of end portions in the opening.
  • the shoulder 140 has a shape protruding in the left-right direction (defined as) perpendicular to the up-down direction (defined as) from the support 150 to the head 130.
  • the angle with respect to the up-down direction in the left-right direction of the shape that protrudes is, for example, an angle that becomes a vertical shape, and may be any angle that can prevent the holding member 110 from falling down, and is not particularly limited. Absent.
  • the tracker 100 is further formed with a wall portion 155 that holds the lower portion of the column portion 150 so as to cover, for example, three directions.
  • the base portion 210 is provided with a groove portion 210 h that can accommodate the column portion 150.
  • a penetrating member 220t for example, a screw
  • the support unit 150 allows the tracker 100 to function as a concentrating solar power generation device. It is possible to maintain an upright state during use.
  • the tracker 100 is transported as a concentrating solar power generation device, for example, before assembling, for example, a diagram viewed from a substantially upward direction in FIG.
  • FIG. 12A a diagram viewed from a substantially lateral direction in FIG.
  • the penetrating member 220t is removed, and the strut portion 150 is tilted through a structure in which the pair of support portions 170r at the bottom portion of the wall portion 155 sandwich the rotating structure 160s at the bottom portion of the strut portion 150, and stored in the groove portion 210h. It becomes possible to make it.
  • Each of the trackers 100 having the structure described in FIG. 11 and FIG. 12 is arranged in an array so as to support each concentrating solar cell panel 10.
  • FIG. 13 for example, eight concentrating solar cell panels 10 are shown, but this is for convenience of explanation, and the number and the number of trackers on which the concentrating solar panel 10 is mounted are limited to this. is not.
  • a tracking device 500 including the plurality of trackers 100 is connected to a driving device 450 that drives a plurality of concentrating solar cell panels 10, and the driving device 450 includes a plurality of driving devices 450.
  • a control device 400 for controlling the drive amount of the drive device 450 is connected so that the concentrating solar cell panel 10 tracks a preset solar orbit.
  • the driving device 450 includes first to third driving devices 450a to 450c.
  • the first driving device 450a is, for example, a servo motor, and is connected to the first driving shaft 320, and the first ribbon AT attached to the first end A of the holding member 110 of the tracker 100 is attached to the first driving device 450a. It is possible to wind at the first traction point 320a.
  • the second driving device 450b is, for example, a servo motor, and is connected to the second driving shaft 330, and the second ribbon BT attached to the second end B of the holding member 110 of the tracker 100 is attached to the second driving device 450b. It is possible to wind at the second traction point 330a.
  • the third driving device 450c is, for example, a stepping motor, and the third CT pulls the wire CT attached to the third end C of the holding member 110 of the tracker 100 via the third driving shaft 340. At point 340a, winding is enabled.
  • the control device 400 includes a calculation unit 410, a processing unit 420, and a storage unit 430.
  • tracking information regarding the concentrating solar cell panel 10 for example, the installation position of the concentrating solar cell panel 10 so that the plurality of concentrating solar cell panels 10 track a preset solar orbit.
  • Information calculated from the latitude, longitude, altitude information, date and time information, and the like is stored in the storage unit 430.
  • the spatial coordinate position of the holding member 110 (For example, the spatial coordinate position of the 1st edge part A, the 2nd edge part B, and the 3rd edge part C is defined from the position of the base point D).
  • the tracking information extracted from the storage unit 430, the winding lengths of the first ribbon AT, the second ribbon BT, and the wire CT are calculated, and the driving unit 450 is instructed through the processing unit 420.
  • the spatial coordinate position of the holding member 110, various tracking information, the information such as the length and thickness of each ribbon and wire used, and the driving based on them The calculation of the driving amount instructed to the device 450 can be realized by a known technique.
  • the electric power acquired from the plurality of concentrating solar cell panels 10 Is sent to the power conditioner 510 through the electric wires 350 and 360, where it is converted from DC power to AC power and transmitted to the transformer 520.
  • the transformer 520 transmits the AC power converted by the power conditioner 510 to the power system 530 that is a load.
  • the power conditioner 510 includes a converter unit, an inverter unit, and a voltage control unit (all not shown).
  • the converter unit constitutes a booster circuit that boosts the DC voltage output from the plurality of trackers 100. Further, output voltage data corresponding to the operation instruction information for each tracker 100 is accumulated in the converter unit.
  • the inverter unit constitutes an inverter circuit that converts DC power output from the converter unit into AC power.
  • the voltage control unit performs MPPT (maximum power point tracking control) control.
  • the MPPT control is also called a mountain climbing method, and the voltage control unit adjusts the output voltage of each tracker so that the output power (operating point) of each tracker 100 approaches the maximum power point.
  • the concentrating solar power generation apparatus there are a plurality of electric lines 350 and 360 (first electric lines and second electric lines) that acquire electricity from the concentrating solar cell panel 10.
  • the shadow control unit 310 transmits each of the trackers 100 arranged in one of the two directions perpendicularly intersecting among the plurality of trackers 100 through the signal lines (in FIG. 13, the plurality of trackers).
  • Each of the trackers 100 arranged in the vertical direction of 100 is connected continuously.
  • the shadow control unit 310 controls the electrical connection of the electric lines 350 and 360 to the tracker 100 by the power line switching unit 370 in consideration of the shadow portion applied to the concentrating solar cell panel 10.
  • the shadow control unit 310 performs shadow control via the processing unit 420 based on the information on the shadow portion of the concentrating solar cell panel 10 calculated from the tracking information stored in the storage unit 430 by the control device 400.
  • the unit 310 is instructed. In this way, among the plurality of concentrating solar cell panels 10, the concentrating solar cell panel 10 that is in the shadow and the concentrating solar cell panel 10 that is not in the shadow are appropriate by the two electric lines. It is possible to avoid the influence of the overall rate-determining by the amount of power generation current of the concentrating solar cell panel 10 that is controlled and shaded.
  • the voltage control based on the MPPT control enables parallel control of the concentrating solar cell panel 10, and appropriate control in the power line switching unit 370 to the wiring structure to be serially controlled by controlling both voltage and current. Switching is possible, and a concentrating solar power generation device with a high concentration rate can be realized.
  • the shadow of the concentrating solar cell panel 10 is controlled. Since the amount of generated current can be in any number of stages, it is possible to improve the performance by providing three or more electric wires and controlling in stages.
  • a heat sink (not shown) that supports the concentrating solar cell panel 10 is provided on the upper surface of the holding member 110 on which the concentrating solar cell panel 10 is mounted. It is good also as a structure.
  • a metal having high thermal conductivity such as aluminum or copper is used for the heat sink, and the heat sink and the concentrating solar cell panel 10 are thermally coupled to each other so that the heat concentrating solar cell panel 10 is likely to rise. The temperature can be suppressed by the heat dissipation structure.
  • the wire CT attached to the third end C of the holding member 110 is wound around the third traction point 340a via the third drive shaft 340.
  • the ribbon (the first ribbon AT attached to the first end A and the second ribbon BT attached to the second end B, as well as the ribbon (first 3 ribbons) can also be used.
  • a ribbon (third ribbon) can be used instead of the load applying member. If it does in this way, in addition to 1st ribbon AT and 2nd ribbon BT, the 3rd ribbon can also be wound up by rotation.
  • the third driving device 450c can use a servo motor, for example.
  • FIG. 14 is a schematic explanatory diagram showing an example of a wiring / transmission shaft structure for realizing control of the tracking device 500 constituting the concentrating solar power generation device according to the present embodiment.
  • the third drive device 450 c is connected to the third drive shaft 340, and the third drive shaft 340 is rotated in the lateral direction, whereby the holding member for the tracker 100 is retained.
  • the ribbon attached to the third end C at 110 can be taken up at the third traction point 340a.
  • the concentrating solar power generation device can be provided with a cover (rectangular case) made of a transparent member that covers the entire gantry (the entire tracking device).
  • FIG. 15 is a schematic explanatory diagram illustrating an example of the tracking device that configures the concentrating solar power generation device according to the present embodiment.
  • a cover 550 made of a transparent member is provided on the gantry 20a so as to cover the whole.
  • the cover 550 has, for example, a protruding portion 500b so that an inclined surface 500a is formed at an end located on the south side in the drawing.
  • the inclined surface 500a is formed on at least one appropriate surface of the cover 550, a concentrating solar power generation device with excellent wind resistance can be realized.
  • a solar cell panel that is not a normal tracking is installed below the inclined surface 500a, boosted to a predetermined voltage by MPPT control, and connected in parallel with other solar cell panels, or current It is also possible to connect in series by controlling.
  • the cover 550 covering the entire tracking device 500 is also made of a material that transmits the scattered light component that has passed through the highly transmissive plate 12 or the scattered light component that has passed through the space 19a between the solar cells 13. It is preferable to be configured.
  • FIG. 16 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar power generation device including a plurality of tracking devices 500 according to the present embodiment.
  • the first to ninth orders are arranged in order from the west side to the east side and from the north side to the south side.
  • the first tracking device 500 is arranged, the first tracking device 500 is inclined on the north surface and the west surface, the second tracking device 500 is inclined on the north surface, and the third tracking device 500 is the north surface and the east surface.
  • the fourth tracking device 500 has an inclined surface on the west surface, the fifth tracking device 500 has no inclined surface, the sixth tracking device 500 has an inclined surface on the east surface, and the seventh tracking device 500 has a south surface.
  • the west surface is inclined, the eighth tracking device 500 is preferably provided with an inclined surface on the south surface, and the ninth tracking device 500 is provided with inclined surfaces on the south surface and the east surface.
  • the concentrating solar power generation device shown in FIG. 16 includes a plurality of tracking devices 500 connected to each other, and a plurality of tracking devices 500 are simultaneously driven by a single control device 400 via a driving device 450.
  • the first, second, and third drive shafts 320, 330, and 340 that are connected to the first, second, and third drive devices 450a, 450b, and 450c from the outside.
  • the concentrating solar power generation device may further include a cleaning device for cleaning the light receiving side surface of the concentrating solar cell panel on the upper side of the plurality of concentrating solar cell panels. it can.
  • FIG. 17 is a schematic explanatory view showing an example of the tracking device constituting the concentrating solar power generation device including the cleaning device according to an embodiment of the present invention, and the concentrating solar shown in FIG. It is a figure of an example further provided with the cleaning apparatus in one Example of the tracking apparatus which comprises a photovoltaic device.
  • a tracking device 500 arranged on a gantry 20 a provided on a base 20 c via a support 20 b includes a plurality of tracking units 100, and the plurality of tracking units 100.
  • Each has a concentrating solar cell panel 10 mounted thereon, and a cleaning device 600 is provided above the plurality of concentrating solar cell panels 10.
  • the cleaning device 600 includes a pair of guide rails 600b and 600b, and a cleaning body 600a that moves on the concentrating solar cell panel 10 while being guided by the guide rails 600b and 600b.
  • the pair of guide rails 600b and 600b are provided in the vicinity of both ends of the tracking device 500 so as to be parallel to the longitudinal direction of the tracking device 500 in which the plurality of concentrating solar cell panels 10 are arranged.
  • the cleaning body 600a includes, for example, a plurality of wiper members (not shown) inside the frame, and one of the tracking devices 500 is moved along the guide rails 600b and 600b by a moving means (not shown) such as a wheel.
  • the plurality of concentrating solar cell panels 10 are moved from the end in the direction of the outlined arrow.
  • the cleaning body 600a When the cleaning body 600a arrives at the other end of the tracking device 500, the cleaning body 600a turns and moves on the plurality of concentrating solar cell panels 10 in the direction opposite to the direction of the white arrow. By repeating the movement of the cleaning body 600a, the light receiving side surfaces of the plurality of concentrating solar cell panels 10 are cleaned.
  • the plurality of wiper members provided in the cleaning body 600a may be made of a general rubber and is not particularly limited. By using such a rubber wiper member, it is possible to remove contamination on the light receiving side surface without scratching the concentrating solar cell panel 10.
  • the movement of the cleaning body 600a on the plurality of concentrating solar cell panels 10 can be appropriately controlled by the control device 400 of the concentrating solar power generation device.
  • the control device 400 In the case where a plurality of tracking devices 500 connected to each other are provided and one control device 400 is a concentrating solar power generation device that simultaneously drives the plurality of tracking devices 500 via the driving device 450, the tracking device 500 is used.
  • Each of the plurality of concentrating solar cell panels 10 is provided with a cleaning device 600, and the movement of each cleaning body 600a of the plurality of cleaning devices 600 is also controlled by the one control device 400 at a time. be able to.
  • the light receiving side surface of the concentrating solar cell panel 10 is maintained in a cleaner state.
  • the efficiency is higher, the direct light can be blocked at a higher ratio, and the scattered light can be transmitted more efficiently.
  • FIG. 18 is a diagram three-dimensionally showing a configuration example of a concentrating solar power generation device according to an embodiment of the present invention.
  • FIG. 18A shows, for example, a driving device 450 (first to third driving devices) in a configuration example of a concentrating solar power generation device including one tracking device 500 (with a cover 550) shown in FIG. 450a to 450c and first to third drive shafts 320 to 340) are illustrated in three dimensions.
  • FIG. 18B shows, for example, a driving device 450 (first to third driving devices) in a configuration example of a concentrating solar power generation device including a plurality of tracking devices 500 (with a cover 550) shown in FIG.
  • 450a to 450c and first to third drive shafts 320 to 340 are illustrated in three dimensions.
  • such a configuration makes it possible to implement the concentrating solar power generation device according to the present embodiment.
  • each structure shown to Fig.18 (a) and (b) is as having demonstrated previously. Therefore, the description will not be repeated.
  • FIG. 19 is a diagram showing a three-dimensional implementation example of the concentrating solar power generation device according to the embodiment of the present invention.
  • a concentrating solar power generation device (a driving device is not shown) provided with one tracking device 500 (with a cover 550) shown in FIG. 15 is installed on the roof, and viewed from below the roof. An example is shown.
  • the concentrating solar power generation apparatus according to the present embodiment is excellent in convenience during installation and portability during transportation.
  • the concentrating solar power generation apparatus can be easily installed on a roof such as a bus stop or a park rest area. Can be installed. And under the roof where the concentrating solar power generation apparatus according to this embodiment is installed in this way, direct light is blocked at a high ratio, and a feeling of opening is given.
  • the roof of the bus stop or the park rest area for example, a non-concentrating solar cell on the lower surface side of the high transmission plate 12, such as the concentrating solar cell panel 10d according to Example 4 shown in FIG.
  • a concentrating solar power generation apparatus provided with a concentrating solar cell panel in which 23 is installed.
  • the tracking device 500 illustrated in FIG. 10 has a size of about 1 m ⁇ 2 m. Therefore, if such a tracking device 500 is used, a concentrating solar power generation device including one of the tracking devices 500 is provided. It can be easily installed on the roofs of bus stops and park rest areas.
  • the concentrating solar power generation apparatus according to the present embodiment can be easily installed on, for example, agricultural land in addition to the roofs of the bus stops and park rest areas.
  • agricultural land or the like where the concentrating solar power generation apparatus according to this embodiment is installed direct light is condensed at a high magnification and power generation with high efficiency is possible, and at the same time, weak scattered light is used for agriculture. Is possible.
  • a plurality of tracking devices 500 connected to each other such as a concentrating solar power generation device shown in FIG. It is preferable to install a concentrating solar power generation apparatus that is provided and driven simultaneously.
  • FIG. 20 is a schematic explanatory diagram illustrating a configuration example of a ribbon used for the tracker of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention.
  • Fig.20 (a) is a figure of the linear state before winding up a ribbon.
  • FIG. 20B is a diagram illustrating a state where the ribbon is wound up.
  • the double-edged ribbon DT is provided with a plurality of teeth 900a on both upper and lower surfaces in the figure, and the outer side when the double-edged ribbon DT is wound up.
  • the interval D1 between the plurality of teeth is larger than the interval D2 between the plurality of teeth on the inner side (corresponding to the upper side in the drawing) when the double-edged ribbon DT is wound. Furthermore, as shown in FIG. 20 (b), the distance D3 (distance between the upper surfaces of adjacent teeth) on the outside when the double-edged ribbon DT is wound is determined by the double-edged ribbon DT being wound. It is equal to a plurality of tooth intervals D2 on the inner side (corresponding to the upper side in the drawing) of the straight line state (the state of FIG. If it does in this way, the bending by the slip of a ribbon can be suppressed more.
  • the concentrating solar cell panel constituting the concentrating solar power generation device constituting the concentrating solar power generation device according to one embodiment of the present invention.
  • only the direct light from the sun is collected and incident on the solar cell, while the scattered light is It passes through a highly transmissive plate or passes through a space between solar cells. Since the tracking device provided in the concentrating solar power generation device is made of a material that transmits the scattered light, the direct light is condensed at a high magnification to generate power with high efficiency, and at a high ratio. At the same time it can be blocked, it is also possible to transmit scattered light efficiently and use it for multiple purposes, and an open feeling can be obtained.
  • FIG. 21 is a schematic view of a tracking device that constitutes a concentrating solar power generation device according to an embodiment of the present invention, where (a) is a schematic top view of the tracking device, and (b) is a longitudinal direction of the tracking device. (C) is a schematic side view of the tracking device in the short direction.
  • the tracking device is basically a transparent tracking device having the same configuration as the tracking device shown in FIG. 10, and includes six trackers on which each of the concentrating solar cell panels can be mounted.
  • the bottom size is 380 mm ⁇ 580 mm, and 12 columns of 10 mm ⁇ 30 mm are connected.
  • the structural members are made of a transparent acrylic resin that transmits scattered light from sunlight (irradiated light), and some of the members use a high-definition 3D printer Agilista (Agilista-3200, manufactured by Keyence Corporation). It is a molded product manufactured by
  • FIG. 22 is a schematic perspective view of a solar cell module in which no light shielding object is disposed
  • FIG. 23 is a schematic perspective view of a solar cell module in which the transparent tracking device is disposed
  • FIG. 24 is a solar cell in which a light shielding object is disposed. It is a schematic perspective view of a module.
  • FIG. 25 is an IV curve showing the results of a sunlight transmission / light-shielding experiment performed using each of the solar cell modules. Solid line results with transparent tracking device (transparent tracking device shading IV curve), long broken line results without shading (no shading IV curve), short dashed line results with shading (all shading IV Curve).
  • Isc is a value determined by the amount of received light.
  • the ratio of the amount of received light is the ratio of Isc of the solar cell module with light shielding by arranging the transparent tracking device or the light shielding material to Isc of the solar cell module without light shielding without the light shielding.
  • the solar cell module a plurality of solar cells are connected in series. Of the plurality of solar cells connected in series in this way, the solar cell with the most shadow is the rate limiting factor. That is, it should be noted that what is substantially shown is the ratio of the amount of received light in the solar cell in which the amount of light has been reduced most by the shadow. For this reason, in the solar cell module in which the light shielding member is arranged, Isc is a value close to 0 A, although a part of the plurality of solar cells is shaded.
  • the light irradiated by the solar simulator was not all direct light, but also included scattered light as well as direct light, but the ratio of the two could not be specified.
  • the ratio of the received light amount of the solar cell module was about 0.05.
  • the ratio of the Isc (2.34A) of the solar cell module in which the transparent tracking device is arranged was arranged to the Isc (5.16A) of the solar cell module in which the light shielding material is not arranged, that is, the sun in which the transparent tracking device is arranged.
  • the ratio of the received light amount of the battery module was about 0.45.
  • the ratio of the amount of received light is almost zero.
  • the transparent tracking device constituting the concentrating solar power generation device according to one embodiment of the present invention is arranged on the solar cell module, the ratio of the received light amount is a high value close to 50%.
  • the plurality of solar cells have a rate-determining rate, and the measured value of Isc is based on the solar cell that contributes to power generation. Therefore, the actual Isc is larger than the measured value. Therefore, the ratio of the actual received light amount of the solar cell module in which the transparent tracking device is arranged is a high value that is larger than 0.45 and exceeds 50%.
  • the tracking device constituting the concentrating solar power generation device according to one embodiment of the present invention has excellent light transmittance, and transmits sunlight even if a concentrating solar cell panel is disposed. It was confirmed in the present experimental example that this can be achieved.
  • the concentrating solar power generation device according to the present invention is suitable as a solar power generation device for a relatively small installation target.

Abstract

A concentrated solar power generation device comprises a plurality of concentrated solar cell panels, a drive device, a control device, and a tracking device. The panels are provided with a concentrator, a highly transmissive plate transmissive to a scattered light component, a plurality of solar battery cells, and circuitry. The cells have a total light reception area of not more than 10% of a total solar incident area. The highly transmissive plate has a light reception area of not less than 80% of the total solar incident area. The tracking device is transmissive to the scattered light component and provided with a plurality of trackers. The trackers are provided with a holder member and a tracking mechanism. The plurality of panels are centrally controlled by a single control device via the plurality of trackers.

Description

集光型太陽光発電装置Concentrating solar power generator
　本発明は、集光型太陽光発電装置に関する。 The present invention relates to a concentrating solar power generation device.
　従来から、非集光型太陽電池パネルや、レンズ、ミラー等の集光器を備えた集光型太陽電池パネルが種々開発されている。また、予め設定された太陽軌道を追尾するようにこれら太陽電池パネルを駆動する駆動装置と、該駆動装置の駆動量を予め設定された太陽軌道に合うように算出し、駆動装置を制御する制御装置とからなる追尾装置を備えた太陽光発電装置も開発されている（特許文献１～４）。 Conventionally, various non-condensing solar cell panels and concentrating solar cell panels equipped with condensers such as lenses and mirrors have been developed. Further, a driving device that drives these solar cell panels so as to track a preset solar orbit, and a control that controls the driving device by calculating a driving amount of the driving device so as to match the preset solar orbit A solar power generation device including a tracking device composed of a device has also been developed (Patent Documents 1 to 4).
　さらに近年では、直達光を高倍率で太陽電池セルに集光させることが可能なだけでなく、入射した散乱光を効率よく透過させ、多目的に利用することが可能な集光型太陽電池パネルと、前記のごとき追尾装置とを備えた太陽光発電装置も提案されている（特許文献５）。 Furthermore, in recent years, a concentrating solar cell panel that not only can direct light to be condensed on a solar cell at a high magnification but also efficiently transmits incident scattered light and can be used for multiple purposes. Also, a solar power generation device including the tracking device as described above has been proposed (Patent Document 5).
特開２００３－３２４２１０号公報JP 2003-324210 A 特開２０１２－０６９６１０号公報JP 2012-0669610 A 特開２０１３－０２１２８６号公報JP 2013-021286 A 特開２０１４－０９５２８０号公報JP 2014-095280 A 特開２０１６－０６２９３１号公報JP 2016-062931 A
　一般的な追尾装置は、耐風性に優れた構造を実現するために装置が大がかりであるが、その割には太陽電池の積載量が多くない。そのため、分散可動型の追尾装置も提案されているが、該追尾装置は、機構が複雑であり、コストが上昇してしまう。また、該追尾装置は、設置時や搬送時の不具合が大きい。 A general tracking device is large in order to realize a structure excellent in wind resistance, but the solar cell load is not large for that. For this reason, a distributed movable type tracking device has also been proposed, but the mechanism of the tracking device is complicated and the cost increases. In addition, the tracking device has a large problem during installation and transportation.
　さらに、従来の一般的な追尾装置には、その構成部材として、光透過性がないか非常に低いものが用いられている。そうすると、例えば入射した散乱光を透過させることが可能な集光型太陽電池パネルを、一般的な追尾装置で追尾制御した場合、該集光型太陽電池パネルを透過した散乱光は、追尾装置を透過することができず、散乱光を透過させることが可能な集光型太陽電池パネルの利用価値が低下してしまう。 Furthermore, a conventional general tracking device uses a component having no or very low light transmission as its constituent member. Then, for example, when a concentrating solar cell panel capable of transmitting incident scattered light is controlled by a general tracking device, the scattered light transmitted through the concentrating solar cell panel is transmitted to the tracking device. The utility value of the concentrating solar cell panel which cannot transmit and can transmit scattered light will fall.
　以上の点に鑑み、本発明の目的は、集光型太陽電池パネルと分散可動型の追尾装置とを備えており、直達光を高倍率で集光することが可能であると同時に、散乱光を効率よく透過させ、多目的に利用することも可能なだけでなく、小型で設置時の利便性や搬送時の可搬性に優れ、低コストでの実現が可能な太陽光発電装置を提供することである。 In view of the above points, an object of the present invention is provided with a concentrating solar cell panel and a dispersion movable tracking device, and is capable of condensing direct light at high magnification, and at the same time, scattered light. Providing a solar power generation device that not only can be used efficiently and can be used for multiple purposes, but it is also compact and has excellent convenience during installation and portability during transportation, and can be realized at low cost. It is.
　本発明の一側面に係る集光型太陽光発電装置（以下、「集光型太陽光発電装置α」ともいう）は、
　アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルと、
　前記複数の集光型太陽電池パネルを駆動する駆動装置と、
　前記複数の集光型太陽電池パネルが予め設定された太陽軌道を追尾するように前記駆動装置の駆動量を制御する制御装置と、
　追尾装置と
を含む集光型太陽光発電装置であって、
　前記集光型太陽電池パネル（以下、「集光型太陽電池パネルα」ともいう）の各々は、
　　太陽光を集光する集光器と、
　　前記集光器によって集光された前記太陽光を受光して該太陽光の少なくとも散乱光成分を透過する高透過板と、
　　前記集光器によって集光された前記太陽光を受光して発電する複数の太陽電池セルと、
　　前記高透過板の表面の一部に設けられ、前記太陽電池セルに電気的に接続可能な回路と
を備え、
　前記太陽電池セルの各々は、前記高透過板の表面上に分散的に配置され、
　前記太陽電池セルと前記回路とは、前記集光器と前記高透過板との間に封止され、
　前記太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であり、
　前記高透過板の受光面積は、太陽光総入射面積の８０％以上であり、
　前記追尾装置は、
　　前記高透過板を透過した散乱光成分を透過する材料からなり、
　　前記複数の集光型太陽電池パネルの各々を搭載する複数の追尾子を備え、
　前記複数の追尾子の各々は、
　　前記集光型太陽電池パネルを搭載する保持部材と、
　　前記保持部材に連結する追尾機構と
を備え、
　前記複数の集光型太陽電池パネルは、前記複数の追尾子を介して、１つの前記制御装置により一元制御される
ことを特徴とする。 The concentrating solar power generation device according to one aspect of the present invention (hereinafter, also referred to as “concentrating solar power generation device α”)
A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power;
A driving device for driving the plurality of concentrating solar cell panels;
A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit,
A concentrating solar power generation device including a tracking device,
Each of the concentrating solar cell panels (hereinafter also referred to as “concentrating solar cell panel α”)
A concentrator that collects sunlight;
A highly transmissive plate that receives the sunlight collected by the condenser and transmits at least a scattered light component of the sunlight;
A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and
A circuit provided on a part of the surface of the highly transmissive plate and electrically connectable to the solar battery cell;
Each of the solar cells is dispersedly disposed on the surface of the highly transmissive plate,
The solar cell and the circuit are sealed between the collector and the high transmission plate,
The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area,
The light receiving area of the high transmission plate is 80% or more of the total sunlight incident area,
The tracking device is
It is made of a material that transmits the scattered light component that has passed through the high transmission plate,
A plurality of trackers each mounting the plurality of concentrating solar cell panels;
Each of the plurality of trackers is
A holding member for mounting the concentrating solar cell panel;
A tracking mechanism connected to the holding member,
The plurality of concentrating solar cell panels are centrally controlled by one control device via the plurality of trackers.
　本発明の別の側面に係る集光型太陽光発電装置（以下、「集光型太陽光発電装置β」ともいう）は、
　アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルと、
　前記複数の集光型太陽電池パネルを駆動する駆動装置と、
　前記複数の集光型太陽電池パネルが予め設定された太陽軌道を追尾するように前記駆動装置の駆動量を制御する制御装置と、
　追尾装置と
を含む集光型太陽光発電装置であって、
　前記集光型太陽電池パネル（以下、「集光型太陽電池パネルβ」ともいう）の各々は、
　　太陽光を集光する集光器と、
　　前記集光器によって集光された前記太陽光を受光して該太陽光の少なくとも散乱光成分を透過する高透過板と、
　　前記集光器によって集光された前記太陽光を受光して発電する複数の太陽電池セルと、
　　前記高透過板の表面の一部に設けられ、前記太陽電池セルに電気的に接続可能な回路と
を備え、
　前記太陽電池セルの各々は、前記高透過板の受光面とは反対側の面に分散的に配置され、
　前記太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であり、
　前記高透過板の受光面積は、太陽光総入射面積の８０％以上であり、
　前記集光器によって集光されかつ前記高透過板を透過した太陽光を反射させ、前記太陽電池セルの受光面へ案内する反射面を有する複数の受光ガイドをさらに備え、
　前記受光ガイドの各々と前記太陽電池セルの各々とが予め一体化され、複数のセルパッケージが構成され、
　前記複数のセルパッケージは、封止材によって前記高透過板の前記反対側の面上に分散的に封止され、
　前記追尾装置は、
　　前記高透過板を透過した散乱光成分を透過する材料からなり、
　　前記複数の集光型太陽電池パネルの各々を搭載する複数の追尾子を備え、
　前記複数の追尾子の各々は、
　　前記集光型太陽電池パネルを搭載する保持部材と、
　　前記保持部材に連結する追尾機構と
を備え、
　前記複数の集光型太陽電池パネルは、前記複数の追尾子を介して、１つの前記制御装置により一元制御される
ことを特徴とする。 A concentrating solar power generation device according to another aspect of the present invention (hereinafter, also referred to as “concentrating solar power generation device β”)
A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power;
A driving device for driving the plurality of concentrating solar cell panels;
A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit,
A concentrating solar power generation device including a tracking device,
Each of the concentrating solar cell panels (hereinafter also referred to as “concentrating solar cell panel β”)
A concentrator that collects sunlight;
A highly transmissive plate that receives the sunlight collected by the condenser and transmits at least a scattered light component of the sunlight;
A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and
A circuit provided on a part of the surface of the highly transmissive plate and electrically connectable to the solar battery cell;
Each of the solar cells is dispersedly disposed on the surface opposite to the light receiving surface of the high transmittance plate,
The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area,
The light receiving area of the high transmission plate is 80% or more of the total sunlight incident area,
A plurality of light receiving guides having a reflecting surface for reflecting the sunlight collected by the collector and transmitted through the highly transmissive plate and guiding it to the light receiving surface of the solar battery cell;
Each of the light receiving guides and each of the solar battery cells are integrated in advance to form a plurality of cell packages,
The plurality of cell packages are dispersedly sealed on the opposite surface of the highly transmissive plate by a sealing material,
The tracking device is
It is made of a material that transmits the scattered light component that has passed through the high transmission plate,
A plurality of trackers each mounting the plurality of concentrating solar cell panels;
Each of the plurality of trackers is
A holding member for mounting the concentrating solar cell panel;
A tracking mechanism connected to the holding member,
The plurality of concentrating solar cell panels are centrally controlled by one control device via the plurality of trackers.
　本発明のさらに別の側面に係る集光型太陽光発電装置（以下、「集光型太陽光発電装置γ」ともいう）は、
　アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルと、
　前記複数の集光型太陽電池パネルを駆動する駆動装置と、
　前記複数の集光型太陽電池パネルが予め設定された太陽軌道を追尾するように前記駆動装置の駆動量を制御する制御装置と、
　追尾装置と
を含む集光型太陽光発電装置であって、
　前記集光型太陽電池パネル（以下、「集光型太陽電池パネルγ」ともいう）の各々は、
　　太陽光を集光する集光器と、
　　前記集光器によって集光された前記太陽光を受光して発電する複数の太陽電池セルと、
　　前記太陽電池セルに電気的に接続可能な回路と
を備え、
　前記複数の太陽電池セルは、前記集光型太陽電池パネルにおいて、各々の間に空間を設けて分散的に配置され、
　前記太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であり、
　前記追尾装置は、
　　前記太陽光からの散乱光成分を透過する材料からなり、
　　前記複数の集光型太陽電池パネルの各々を搭載する複数の追尾子を備え、
　前記複数の追尾子の各々は、
　　前記集光型太陽電池パネルを搭載する保持部材と、
　　前記保持部材に連結する追尾機構と
を備え、
　前記複数の集光型太陽電池パネルは、前記複数の追尾子を介して、１つの前記制御装置により一元制御される
ことを特徴とする。 A concentrating solar power generation device according to still another aspect of the present invention (hereinafter, also referred to as “concentrating solar power generation device γ”),
A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power;
A driving device for driving the plurality of concentrating solar cell panels;
A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit,
A concentrating solar power generation device including a tracking device,
Each of the concentrating solar cell panels (hereinafter also referred to as “concentrating solar cell panel γ”)
A concentrator that collects sunlight;
A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and
A circuit electrically connectable to the solar cell,
The plurality of solar cells are arranged in a distributed manner in the concentrating solar cell panel, with spaces provided between them.
The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area,
The tracking device is
Made of a material that transmits the scattered light component from the sunlight,
A plurality of trackers each mounting the plurality of concentrating solar cell panels;
Each of the plurality of trackers is
A holding member for mounting the concentrating solar cell panel;
A tracking mechanism connected to the holding member,
The plurality of concentrating solar cell panels are centrally controlled by one control device via the plurality of trackers.
　このように、集光型太陽光発電装置αには集光型太陽電池パネルαが備えられており、集光型太陽光発電装置βには集光型太陽電池パネルβが備えられており、集光型太陽光発電装置γには集光型太陽電池パネルγが備えられている。集光型太陽電池パネルα、β、及びγにより、特に集光型太陽電池パネルα及びβにより、従来の集光型太陽電池パネルでは温度上昇による変換効率の低下等の要因となっていた散乱光を、高い比率で透過させることができる。 As described above, the concentrating solar power generation device α is provided with the concentrating solar cell panel α, and the concentrating solar power generation device β is provided with the concentrating solar cell panel β. The concentrating solar power generation device γ is provided with a concentrating solar cell panel γ. Scattering caused by concentrating solar cell panels α, β, and γ, especially by concentrating solar cell panels α and β, such as a decrease in conversion efficiency due to temperature rise in conventional concentrating solar cell panels Light can be transmitted at a high rate.
　集光型太陽電池パネルα、β、及びγによれば、特に集光型太陽電池パネルα及びβによれば、通常の非集光型太陽電池パネルや低倍率集光型太陽電池パネルでは不可能であった、入射光のうち、散乱光の発電以外の用途への利用が可能になるとともに、直達光の高倍率での集光による発電も可能になる。 According to the concentrating solar cell panels α, β, and γ, particularly according to the concentrating solar cell panels α and β, it is not possible with a normal non-condensing solar cell panel or a low-magnification concentrating solar cell panel. Among the incident light, it is possible to use the scattered light for purposes other than power generation, and it is also possible to generate power by condensing direct light at a high magnification.
　集光型太陽電池パネルα、β、及びγは、焦点の位置ずれがあった場合でも、集光率の低下が極力抑制され、かつ、高い放熱特性を有している。 The concentrating solar cell panels α, β, and γ have a high heat dissipation characteristic in which a decrease in the condensing rate is suppressed as much as possible even when the focal point is misaligned.
　集光型太陽電池パネルα、β、及びγにおいて、太陽電池セルの下面側に低コストの別の太陽電池を設置すれば、散乱光からも発電が可能となり、発電量をさらに増大させることができる。 In the concentrating solar cell panels α, β, and γ, if another low-cost solar cell is installed on the lower surface side of the solar cell, it is possible to generate power from scattered light and further increase the power generation amount. it can.
　集光型太陽光発電装置α、β、及びγによると、集光型太陽電池パネルα、β、及びγを搭載する追尾子の各々を駆動装置により駆動させることができる。このように、分散可動型であって、簡易な構造の追尾装置を備えた集光型太陽光発電装置α、β、及びγが、低コストで実現され得る。 According to the concentrating solar power generation devices α, β, and γ, each of the trackers on which the concentrating solar cell panels α, β, and γ are mounted can be driven by the driving device. As described above, the concentrating solar power generation devices α, β, and γ that are distributed and movable and have a tracking device with a simple structure can be realized at low cost.
　本実施形態に係る集光型太陽光発電装置α、β、及びγにおいて、
　前記複数の追尾子の各々は、前記駆動装置の前記制御された駆動量に基づいて、前記保持部材における少なくとも３点を駆動することにより、前記集光型太陽電池パネルが予め設定された太陽軌道を追尾し、
　前記駆動装置は、前記保持部材における前記少なくとも３点をそれぞれ駆動する少なくとも３つの駆動部からなる
ことが好ましい。 In the concentrating solar power generation devices α, β, and γ according to the present embodiment,
Each of the plurality of trackers drives at least three points on the holding member based on the controlled driving amount of the driving device, so that the concentrating solar cell panel is set in advance. Tracking
It is preferable that the driving device includes at least three driving units that respectively drive the at least three points of the holding member.
　このように、保持部材の少なくとも３点を駆動させることにより、さらには、３つの駆動部で該保持部材の３点を駆動させることにより、簡易な構造でありながら、集光型太陽電池パネルα、β、及びγをより正確に太陽軌道に追尾させることができる。 In this way, by driving at least three points of the holding member, and further by driving three points of the holding member with three driving units, the concentrating solar cell panel α is simple in structure. , Β, and γ can be more accurately tracked to the solar orbit.
　本実施形態に係る集光型太陽光発電装置α、β、及びγにおいて、
　前記追尾機構は、
　　前記保持部材を支える支柱部と、
　　前記支柱部を支える土台部と
を備え、
　前記保持部材と前記支柱部とを連結するリングがさらに設けられている
ことが好ましい。 In the concentrating solar power generation devices α, β, and γ according to the present embodiment,
The tracking mechanism is
A support column supporting the holding member;
A base portion that supports the support portion,
It is preferable that a ring for connecting the holding member and the support column is further provided.
　このようにすると、保持部材と支柱部とがリングによって連結しているため、リングを介して保持部材の駆動が円滑に行われる。その結果、集光型太陽電池パネルα、β、及びγをより正確に太陽軌道に追尾させることができる。 In this case, since the holding member and the support column are connected by the ring, the holding member is driven smoothly through the ring. As a result, the concentrating solar cell panels α, β, and γ can be more accurately tracked in the solar orbit.
　本実施形態に係る集光型太陽光発電装置α、β、及びγにおいて、
　前記追尾装置を搭載する架台と、
　前記架台の上に、前記追尾装置の全体を覆うように設けられた透明部材からなる矩形状のケースと
をさらに備えており、
　前記ケースの少なくとも一面が傾斜している
ことが好ましい。 In the concentrating solar power generation devices α, β, and γ according to the present embodiment,
A gantry on which the tracking device is mounted;
On the gantry, further comprises a rectangular case made of a transparent member provided to cover the entire tracking device,
It is preferable that at least one surface of the case is inclined.
　このようにすると、耐風性に優れた集光型太陽光発電装置α、β、及びγを実現することができる。 In this way, it is possible to realize the concentrating solar power generation devices α, β, and γ that are excellent in wind resistance.
　本実施形態に係る集光型太陽光発電装置α、β、及びγにおいて、
　前記複数の集光型太陽電池パネルの上部に、該集光型太陽電池パネルの各々の受光側表面を清掃する清掃装置がさらに設けられている
ことが好ましい。 In the concentrating solar power generation devices α, β, and γ according to the present embodiment,
It is preferable that a cleaning device for cleaning the light receiving side surface of each of the concentrating solar cell panels is further provided above the plurality of concentrating solar cell panels.
　このようにすると、集光型太陽電池パネルα、β、及びγの受光側表面がより清浄な状態で維持され、集光型太陽光発電装置α、β、及びγは、発電効率がより高く、より高比率で直達光を遮断することができ、散乱光をさらに効率よく透過させることもできる。 In this way, the light receiving side surfaces of the concentrating solar cell panels α, β, and γ are maintained in a cleaner state, and the concentrating solar power generation devices α, β, and γ have higher power generation efficiency. The direct light can be blocked at a higher ratio, and the scattered light can be transmitted more efficiently.
　本実施形態に係る集光型太陽光発電装置α、β、及びγにおいて、
　互いに連結した前記追尾装置を複数備え、
　前記複数の追尾装置は、前記駆動装置を介して、１つの前記制御装置により同時に駆動される
ことが好ましい。 In the concentrating solar power generation devices α, β, and γ according to the present embodiment,
A plurality of the tracking devices connected to each other;
The plurality of tracking devices are preferably driven simultaneously by one control device via the driving device.
　このようにすると、１つの制御装置を介して複数の追尾装置を一元制御することができ、簡易な構造の複数の追尾装置を備えた集光型太陽光発電装置α、β、及びγを実現することができる。 In this way, a plurality of tracking devices can be centrally controlled via one control device, and a concentrating solar power generation device α, β, and γ having a plurality of tracking devices with a simple structure is realized. can do.
　本発明によると、直達光を高倍率で集光して高効率で発電し、高比率で遮断することが可能であると同時に、散乱光を効率よく透過させ、多目的に利用することも可能なだけでなく、小型で設置時の利便性や搬送時の可搬性に優れ、開放感を有する集光型太陽光発電装置を、低コストで実現することができる。 According to the present invention, it is possible to collect direct light at a high magnification and generate power with high efficiency and to cut off at a high ratio, and at the same time, it can efficiently transmit scattered light and be used for multiple purposes. In addition, it is possible to realize a concentrating solar power generation apparatus that is small in size, excellent in installation convenience and transportability in transportation, and having an open feeling at low cost.
図１は、実施例１に係る集光型太陽電池パネルの構成例を示す概略説明図であり、（ａ）は平面図、（ｂ）は断面図である。1A and 1B are schematic explanatory views showing a configuration example of a concentrating solar cell panel according to Example 1, where FIG. 1A is a plan view and FIG. 1B is a cross-sectional view. 図２は、実施例１において、太陽電池セルの温度を熱解析シミュレーションによって予測した結果を示す図である。FIG. 2 is a diagram illustrating a result of predicting the temperature of the solar battery cell by thermal analysis simulation in Example 1. 図３は、実施例２に係る集光型太陽電池パネルの構成例を示す概略説明図であり、（ａ）は平面図、（ｂ）は断面図である。FIG. 3 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 2, in which (a) is a plan view and (b) is a cross-sectional view. 図４は、実施例３に係る集光型太陽電池パネルの構成例を示す概略説明図であり、（ａ）は平面図、（ｂ）は断面図である。FIG. 4 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 3, where (a) is a plan view and (b) is a cross-sectional view. 図５は、実施例４に係る集光型太陽電池パネルの構成例を示す概略説明図（断面図）である。FIG. 5 is a schematic explanatory diagram (cross-sectional view) showing a configuration example of a concentrating solar cell panel according to Example 4. 図６は、実施例５及び６に係る集光型太陽電池パネルの構成例を示す概略説明図であり、（ａ）は集光型太陽電池パネルの断面図、（ｂ）はセルパッケージの断面図、（ｃ）はセルパッケージの断面図である。FIG. 6 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel according to Examples 5 and 6, where (a) is a cross-sectional view of the concentrating solar cell panel, and (b) is a cross-sectional view of the cell package. FIG. 3C is a cross-sectional view of the cell package. 図７は、実施例７に係る集光型太陽電池パネルの構成例を示す概略説明図であり、（ａ）は断面図、（ｂ）は平面図である。FIG. 7 is a schematic explanatory view illustrating a configuration example of a concentrating solar cell panel according to Example 7, in which (a) is a cross-sectional view and (b) is a plan view. 図８は、実施例８に係る集光型太陽電池パネルの構成例を示す概略説明図であり、（ａ）は集光型太陽電池パネルの断面図、（ｂ）はセルパッケージの断面図である。FIG. 8 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 8, where (a) is a cross-sectional view of the concentrating solar cell panel, and (b) is a cross-sectional view of the cell package. is there. 図９は、実施例９に係る集光型太陽電池パネルの構成例を示す概略説明図であり、（ａ）は平面図、（ｂ）は断面図である。FIG. 9 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar cell panel according to Example 9, in which (a) is a plan view and (b) is a cross-sectional view. 図１０は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の一実施例を示す概略説明図である。FIG. 10 is a schematic explanatory diagram illustrating an example of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention. 図１１は、本発明の一実施形態において追尾装置を構成する追尾子の構造例を示す概略説明図である。FIG. 11 is a schematic explanatory diagram showing an example of the structure of a tracker constituting the tracking device in an embodiment of the present invention. 図１２は、本発明の一実施形態において追尾装置を構成する追尾子の折り畳まれた状態の構造例を示す概略説明図であり、（ａ）は追尾子の略上方から見た図、（ｂ）は追尾子の略横方向から見た図である。FIG. 12 is a schematic explanatory view showing a structure example of a folded state of the tracker constituting the tracking device in one embodiment of the present invention, and (a) is a diagram seen from substantially above the tracker. ) Is a diagram seen from the lateral direction of the tracker. 図１３は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の制御を実現するための配線・伝達軸構造例を示す概略説明図である。FIG. 13 is a schematic explanatory diagram showing an example of a wiring / transmission shaft structure for realizing control of the tracking device constituting the concentrating solar power generation device according to the embodiment of the present invention. 図１４は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の制御を実現するための配線・伝達軸構造例を示す概略説明図である。FIG. 14 is a schematic explanatory diagram illustrating an example of a wiring / transmission shaft structure for realizing control of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention. 図１５は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の一実施例を示す概略説明図である。FIG. 15 is a schematic explanatory diagram illustrating an example of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention. 図１６は、本発明の一実施形態に係る、複数の追尾装置を備えた集光型太陽光発電装置の構成例を示す概略説明図である。FIG. 16 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar power generation device including a plurality of tracking devices according to an embodiment of the present invention. 図１７は、本発明の一実施形態に係る、清掃装置を備えた集光型太陽光発電装置を構成する追尾装置の一実施例を示す概略説明図である。FIG. 17 is a schematic explanatory diagram illustrating an example of a tracking device that constitutes a concentrating solar power generation device including a cleaning device according to an embodiment of the present invention. 図１８は、本発明の一実施形態に係る集光型太陽光発電装置の構成例を立体的に示す図であり、（ａ）は追尾装置を備えた集光型太陽光発電装置の図、（ｂ）は複数の追尾装置を備えた集光型太陽光発電装置の図である。FIG. 18 is a diagram three-dimensionally illustrating a configuration example of a concentrating solar power generation device according to an embodiment of the present invention, and (a) is a diagram of the concentrating solar power generation device including a tracking device, (B) is a figure of the concentrating solar power generation device provided with the some tracking apparatus. 図１９は、本発明の一実施形態に係る集光型太陽光発電装置の実装例を立体的に示す図である。FIG. 19 is a diagram three-dimensionally showing an example of mounting the concentrating solar power generation device according to one embodiment of the present invention. 図２０は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の追尾子に用いるリボンの構成例を示す概略説明図であり、（ａ）は巻き取る前の直線状態の図、（ｂ）は巻き取った状態の図である。FIG. 20 is a schematic explanatory diagram illustrating a configuration example of a ribbon used for the tracker of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention, and (a) is a straight line before winding. The state figure and (b) are the figure of the state wound up. 図２１は、実験例に用いた、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の概略図であり、（ａ）は追尾装置の概略上面図、（ｂ）は追尾装置の長手方向の概略側面図、（ｃ）は追尾装置の短手方向の概略側面図である。FIG. 21: is the schematic of the tracking apparatus which comprises the concentrating solar power generation device which concerns on one Embodiment of this invention used for the experiment example, (a) is a schematic top view of a tracking apparatus, (b) Is a schematic side view of the tracking device in the longitudinal direction, and (c) is a schematic side view of the tracking device in the short direction. 図２２は、実験例に用いた、遮光物を配置していない太陽電池モジュールの概略斜視図である。FIG. 22 is a schematic perspective view of a solar cell module used in the experimental example, in which no light-shielding object is disposed. 図２３は、実験例に用いた、図２１に示す追尾装置を配置した太陽電池モジュールの概略斜視図である。FIG. 23 is a schematic perspective view of a solar cell module used in the experimental example in which the tracking device shown in FIG. 21 is arranged. 図２４は、実験例に用いた、遮光物を配置した太陽電池モジュールの概略斜視図である。FIG. 24 is a schematic perspective view of a solar cell module used in the experimental example and provided with a light blocking object. 図２５は、図２２～２４に示す各太陽電池モジュールを用いて行った、太陽光透過／遮光実験の結果を示すＩＶカーブである。FIG. 25 is an IV curve showing the results of a sunlight transmission / light-shielding experiment performed using each of the solar cell modules shown in FIGS.
　以下に、本発明の集光型太陽光発電装置について図面を参照しながら説明する。なお、本明細書において、集光型太陽光発電装置α及びβを併せて集光型太陽光発電装置Ｉといい、集光型太陽光発電装置γを集光型太陽光発電装置ＩＩともいう。 Hereinafter, the concentrating solar power generation device of the present invention will be described with reference to the drawings. In this specification, the concentrating solar power generation devices α and β are collectively referred to as a concentrating solar power generation device I, and the concentrating solar power generation device γ is also referred to as a concentrating solar power generation device II. .
＜集光型太陽光発電装置α＞
　本発明の一実施形態に係る集光型太陽光発電装置αは、少なくとも、
（１）アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルαと、
（２）複数の集光型太陽電池パネルαを駆動する駆動装置と、
（３）複数の集光型太陽電池パネルαが予め設定された太陽軌道を追尾するように駆動装置の駆動量を制御する制御装置と、
（４）追尾装置と
を備えている。 <Concentrated solar power generator α>
The concentrating solar power generation apparatus α according to one embodiment of the present invention is at least:
(1) A plurality of concentrating solar cell panels α arranged in an array and converting sunlight into electric power,
(2) a driving device for driving a plurality of concentrating solar cell panels α;
(3) a control device that controls the drive amount of the drive device so that the plurality of concentrating solar cell panels α track a preset solar orbit,
(4) A tracking device is provided.
＜集光型太陽光発電装置β＞
　本発明の一実施形態に係る集光型太陽光発電装置βは、少なくとも、
（１）アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルβと、
（２）複数の集光型太陽電池パネルβを駆動する駆動装置と、
（３）複数の集光型太陽電池パネルβが予め設定された太陽軌道を追尾するように駆動装置の駆動量を制御する制御装置と、
（４）追尾装置と
を備えている。 <Concentrated solar power generation device β>
The concentrating solar power generation apparatus β according to an embodiment of the present invention is at least:
(1) A plurality of concentrating solar cell panels β arranged in an array and converting sunlight into electric power;
(2) a driving device for driving a plurality of concentrating solar cell panels β;
(3) a control device that controls the drive amount of the drive device so that the plurality of concentrating solar cell panels β track a preset solar orbit;
(4) A tracking device is provided.
＜集光型太陽光発電装置γ＞
　本発明の一実施形態に係る集光型太陽光発電装置γは、少なくとも、
（１）アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルγと、
（２）複数の集光型太陽電池パネルγを駆動する駆動装置と、
（３）複数の集光型太陽電池パネルγが予め設定された太陽軌道を追尾するように駆動装置の駆動量を制御する制御装置と、
（４）追尾装置と
を備えている。 <Concentrating solar power generator γ>
The concentrating solar power generation device γ according to one embodiment of the present invention is at least:
(1) a plurality of concentrating solar cell panels γ arranged in an array and converting sunlight into electric power;
(2) a driving device for driving a plurality of concentrating solar cell panels γ,
(3) a control device that controls the drive amount of the drive device so that a plurality of concentrating solar cell panels γ track a preset solar orbit,
(4) A tracking device is provided.
（１）集光型太陽電池パネルＩ
　集光型太陽光発電装置αに備えられる集光型太陽電池パネルαの各々、及び、集光型太陽光発電装置βに備えられる集光型太陽電池パネルβの各々は、いずれも、少なくとも以下の（１－１）～（１－４）を備えている。なお、本明細書において、集光型太陽電池パネルα及びβを併せて集光型太陽電池パネルＩという。
（１－１）太陽光を集光する集光器
（１－２）集光器によって集光された太陽光を受光して太陽光の少なくとも散乱光成分を透過する高透過板
（１－３）集光器によって集光された太陽光を受光して発電する複数の太陽電池セル
（１－４）高透過板の表面の一部に設けられ、太陽電池セルに電気的に接続可能な回路 (1) Concentrating solar panel I
Each of the concentrating solar cell panel α provided in the concentrating solar power generation device α and each of the concentrating solar cell panel β provided in the concentrating solar power generation device β is at least the following: (1-1) to (1-4) are provided. In this specification, the concentrating solar cell panels α and β are collectively referred to as a concentrating solar cell panel I.
(1-1) A collector for collecting sunlight (1-2) A highly transmissive plate (1-3) that receives sunlight collected by the collector and transmits at least scattered light components of sunlight. ) A plurality of solar cells (1-4) for receiving sunlight generated by the condenser and generating electric power (1-4) A circuit provided on a part of the surface of the high transmission plate and electrically connectable to the solar cells
　ここで、前記太陽電池セルの各々は、前記高透過板の表面上に分散的に配置される。太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であり、高透過板の受光面積は、太陽光総入射面積の８０％以上であることを特徴とする。なお、高透過板上に配置され、太陽電池セルと接続して電気回路を構成する各部材の総受光面積（太陽電池セル以外に高透過板への散乱光の入射を遮る総面積）は、太陽光総入射面積の１０％未満に設定されていることが好ましい。太陽電池セルの全受光面積が太陽光総入射面積の１０％を超えると、目的とする超高倍率の集光型太陽電池パネルＩの作製が困難となる。一方、高透過板の受光面積が太陽光総入射面積の８０％未満になると、発電以外の他用途への散乱光の利用が不充分になるだけでなく、透過せずにパネル内に残存した散乱光が余分な熱となり、パネル内の機器に悪影響を及ぼす危険が増加する。 Here, each of the solar battery cells is dispersedly arranged on the surface of the high transmission plate. The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area, and the light receiving area of the high transmission plate is 80% or more of the total sunlight incident area. In addition, the total light receiving area of each member that is arranged on the high transmission plate and is connected to the solar cell to constitute the electric circuit (total area that blocks the incident of scattered light to the high transmission plate other than the solar cell) is It is preferably set to less than 10% of the total sunlight incident area. If the total light receiving area of the solar battery cell exceeds 10% of the total sunlight incident area, it becomes difficult to produce a target concentrating solar battery panel I with ultra-high magnification. On the other hand, when the light-receiving area of the high-transmitting plate is less than 80% of the total sunlight incident area, not only is the scattered light used for other purposes other than power generation, but it remains in the panel without being transmitted. Scattered light becomes extra heat, increasing the risk of adversely affecting the equipment in the panel.
　以下に、集光型太陽電池パネルＩを図面に示す実施例に基づいて具体的に説明する。なお、本発明に用いる集光型太陽電池パネルＩは、これらの実施例に何ら限定されるものではない。 Hereinafter, the concentrating solar cell panel I will be described in detail based on examples shown in the drawings. In addition, the concentrating solar cell panel I used for this invention is not limited to these Examples at all.
［実施例１］
　図１は、実施例１に係る集光型太陽電池パネルαの構成例を示す概略説明図である。図１（ａ）は、集光型太陽電池パネル１０（１０ａ）の平面図を示す。図１（ｂ）は、図１（ａ）のＡ－Ａ’線で破断した集光型太陽電池パネル１０（１０ａ）の断面図を示す。 [Example 1]
FIG. 1 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel α according to the first embodiment. Fig.1 (a) shows the top view of the concentrating solar cell panel 10 (10a). FIG. 1B shows a cross-sectional view of the concentrating solar cell panel 10 (10a) taken along the line AA ′ of FIG.
（実施例１に係る集光型太陽電池パネルαの構造の概要）
　集光型太陽電池パネル１０ａは、図１（ａ）及び（ｂ）に示すように、太陽光を集光する集光器（セル封止型集光器）１１と、高透過板１２と、太陽電池セル１３と、金属膜１４と、太陽電池セル１３、１３同士を電気的に接続する金属ワイヤー１５と、太陽電池セル１３の一群の発電電力を外部に取り出すリード線１６と、から構成されている。 (Outline of the structure of the concentrating solar cell panel α according to Example 1)
As shown in FIGS. 1A and 1B, the concentrating solar cell panel 10 a includes a concentrator (cell-sealed concentrator) 11 that condenses sunlight, a high transmission plate 12, It is comprised from the photovoltaic cell 13, the metal film 14, the metal wire 15 which electrically connects the photovoltaic cells 13 and 13, and the lead wire 16 which takes out the generated electric power of a group of photovoltaic cells 13 outside. ing.
　高透過板１２は、太陽光透過率が８０％以上の材料からなることが好ましく、ガラス板のほか、アクリル系樹脂、ポリカーボネート系樹脂等の樹脂からなる板材を用いることができる。 The high transmission plate 12 is preferably made of a material having a sunlight transmittance of 80% or more, and a plate material made of a resin such as an acrylic resin or a polycarbonate resin can be used in addition to a glass plate.
　金属膜１４は、電気伝導率が高い材料からなることが好ましく、例えば、銅、アルミニウム、金等の金属を用いることができる。また、金属に限らず、電気伝導率が高い材料であれば、金属膜１４として用いることができる。なお、実施例１では、金属膜１４は高透過板１２の集光器１１側の表面に密着して形成されており、１つの太陽電池セル１３に対して２つの金属膜１４ａ、１４ｂを島状に形成し、一方の金属膜１４ａの集光器１１側の表面には、太陽電池セル１３の裏面電極（ここでは＋極）が密着して形成されている。また、この太陽電池セル１３の表面電極（ここでは－極）から、他方の金属膜１４ｂの表面に金属ワイヤー１５がボンディングされている。なお、実施例１では、生産性を向上させるために前記のごとき回路接続構成を採用したが、必ずしもこれに限定されない。金属膜１４を前記のごとく分割せずに、１つの太陽電池セル１３に対して１つの金属膜１４を設置する構成を採用してもよい。 The metal film 14 is preferably made of a material having high electrical conductivity, and for example, a metal such as copper, aluminum, or gold can be used. Moreover, not only a metal but a material with high electrical conductivity can be used as the metal film 14. In Example 1, the metal film 14 is formed in close contact with the surface of the high transmission plate 12 on the collector 11 side, and two metal films 14 a and 14 b are formed on one island 13. The back electrode (in this case, the + electrode) of the solar battery cell 13 is formed in close contact with the surface of the one metal film 14a on the collector 11 side. Further, a metal wire 15 is bonded from the surface electrode (here, the negative electrode) of the solar battery cell 13 to the surface of the other metal film 14b. In the first embodiment, the circuit connection configuration as described above is employed in order to improve productivity, but the present invention is not necessarily limited thereto. You may employ | adopt the structure which installs one metal film 14 with respect to one photovoltaic cell 13, without dividing | segmenting the metal film 14 as mentioned above.
　金属ワイヤー１５には、例えば、銅、アルミニウム、金等の電気伝導率の高い金属を用いることができる。実施例１では、太陽電池セル１３が４直列及び４並列（４×４配列）に電気的に接続され、両端の細長い金属膜１４ｔ、１４ｔに取り付けられた正負極のリード線１６、１６から外部に発電電力を取り出すことができる。金属ワイヤー１５として、ワイヤーボンディングで使用される直径数十ミクロンの細線状のもの以外にも、薄い帯状の金属板等も用いることができる。直列及び並列の接続パターンは、取り出したい電流及び電圧のレベルに応じて任意に設定することができる。 For the metal wire 15, for example, a metal having high electrical conductivity such as copper, aluminum, or gold can be used. In the first embodiment, the solar cells 13 are electrically connected in 4 series and 4 parallel (4 × 4 array), and are connected to the negative and positive lead wires 16 and 16 attached to the elongated metal films 14t and 14t at both ends. The generated power can be taken out. As the metal wire 15, in addition to a thin wire having a diameter of several tens of microns used for wire bonding, a thin strip-shaped metal plate or the like can also be used. The series and parallel connection patterns can be arbitrarily set according to the level of current and voltage to be extracted.
　このように、集光型太陽電池パネル１０ａでは、回路が金属膜１４と金属ワイヤー１５とを含み、金属膜１４が、太陽電池セル１３を担持しながら高透過板１２の表面に分散的にかつ高透過板１２とは電気的に絶縁であるように密着して設置され、金属ワイヤー１５は、金属膜１４と太陽電池セル１３との間を電気的に接続し、直列又は並列の電気回路を構成している。 Thus, in the concentrating solar cell panel 10 a, the circuit includes the metal film 14 and the metal wire 15, and the metal film 14 dispersively disperses on the surface of the high transmission plate 12 while supporting the solar cell 13. The metal wire 15 is installed in close contact with the highly transmissive plate 12 so as to be electrically insulated, and the metal wire 15 electrically connects between the metal film 14 and the solar battery cell 13 to form a series or parallel electric circuit. It is composed.
　高透過板１２の集光器１１側の太陽電池セル１３と、金属膜１４と、金属ワイヤー１５との全ての構成部材を集光器１１の材料で封止するように、集光器１１を形成する。実施例１では、集光器１１の受光側表面はドーム状のレンズアレイとなっている。実施例１において、集光器１１の材料には、透明アクリル系樹脂、透明シリコーン系樹脂、ガラス等が適している。このような集光器１１において、入射光線は、屈折率が低い空気と屈折率が高いレンズアレイとの境界面において１回しか屈折しないため、該集光器１１は、約３００倍未満の集光倍率に適している。なお、予め射出成形等で製作した集光器１１と、該集光器１１の材料の屈折率とほぼ等しい屈折率を有し、接着作用のある別の透明材料を用いた他の構成部材とを接合した場合も、同様の効果が得られる。 The concentrator 11 is placed so that all the constituent members of the solar cell 13 on the concentrator 11 side of the high transmission plate 12, the metal film 14, and the metal wire 15 are sealed with the material of the concentrator 11. Form. In the first embodiment, the light receiving side surface of the condenser 11 is a dome-shaped lens array. In Example 1, the material of the collector 11 is suitably a transparent acrylic resin, a transparent silicone resin, glass, or the like. In such a collector 11, the incident light beam is refracted only once at the boundary surface between air having a low refractive index and a lens array having a high refractive index. Suitable for light magnification. A concentrator 11 manufactured in advance by injection molding or the like, and other constituent members using another transparent material having a refractive index substantially equal to the refractive index of the material of the concentrator 11 and having an adhesive action The same effect can be obtained even when these are joined.
　このように構成した集光型太陽電池パネル１０ａを、後述する追尾装置（例えば、図１０参照）に搭載すると、図１（ｂ）に示すように、直達光Ｌ１は、集光器１１によって太陽電池セル１３に集光され、電気に変換される。一方、全方位から入射する散乱光Ｌ２は、太陽電池セル１３には集光されず、その大半が高透過板１２を通過（透過）する。 When the concentrating solar cell panel 10a configured as described above is mounted on a tracking device (see, for example, FIG. 10) to be described later, the direct light L1 is transmitted by the concentrator 11 as shown in FIG. It is condensed on the battery cell 13 and converted into electricity. On the other hand, the scattered light L2 incident from all directions is not condensed on the solar battery cell 13, and most of the light passes through (transmits) the high transmission plate 12.
　このとき、集光器１１の受光面面積（太陽光総入射面積）に対して、受光面の内側に配置（封止）された不透明な金属膜１４と金属ワイヤー１５とが占める総投影面積（すなわち、回路面積）の割合を１０％未満にすることが好ましい。これにより、太陽電池セル１３の全受光面積を太陽光総入射面積の１０％以下の超高倍率集光に設定した場合に、高透過板１２の受光面積を太陽光総入射面積の８０％以上とすることができる。また、太陽電池セル１３としては、化合物型多接合太陽電池等の、集光時のセル変換効率が３５％以上であるものが好ましい。 At this time, the total projected area occupied by the opaque metal film 14 and the metal wire 15 disposed (sealed) inside the light receiving surface with respect to the light receiving surface area (total sunlight incident area) of the condenser 11 ( In other words, the ratio of the circuit area is preferably less than 10%. Thereby, when the total light receiving area of the solar battery cell 13 is set to ultrahigh magnification condensing of 10% or less of the total sunlight incident area, the light receiving area of the high transmission plate 12 is 80% or more of the total sunlight incident area. It can be. Moreover, as the photovoltaic cell 13, what has the cell conversion efficiency at the time of condensing of 35% or more, such as a compound type multi-junction solar cell, is preferable.
　太陽電池セル１３は、できる限り小面積のものが好ましい。太陽電池セル１３の受光面サイズが小さくなると、図１（ｂ）に示す焦点距離ＦＬが短くなり、集光器１１の全高を低く抑えることができる。その結果、集光器１１内部での光吸収量が減少し、光透過性が向上する。さらに、太陽電池セル１３のサイズが小さくなると、熱源が分散される効果により、後述の熱解析シミュレーション結果にも示すように（図２参照）、太陽電池セル１３の到達温度が低下するため、変換効率及び長期信頼性が向上する。この観点から、１ｍｍ×１ｍｍ以下、さらには０．５ｍｍ×０．５ｍｍ以下の太陽電池セル１３を用いることが好ましい。このサイズはＬＥＤチップと同程度であり、ＬＥＤの実装技術を適用（応用）できるメリットもある。 The solar cells 13 are preferably as small as possible. When the light receiving surface size of the solar battery cell 13 is reduced, the focal length FL shown in FIG. 1B is shortened, and the overall height of the condenser 11 can be suppressed low. As a result, the amount of light absorption inside the collector 11 is reduced, and the light transmission is improved. Furthermore, when the size of the solar battery cell 13 is reduced, the temperature reached by the solar battery cell 13 is lowered due to the effect of the heat source being dispersed, as shown in the thermal analysis simulation result described later (see FIG. 2). Efficiency and long-term reliability are improved. From this viewpoint, it is preferable to use a solar battery cell 13 having a size of 1 mm × 1 mm or less, more preferably 0.5 mm × 0.5 mm or less. This size is similar to that of an LED chip, and there is an advantage that an LED mounting technology can be applied (applied).
　直列及び並列の接続パターンによって発電電圧が高くなる場合には、金属膜１４と高透過板１２との間に、電気絶縁性が高い材料を挿入してもよい。また、金属ワイヤー１５に電気絶縁性が高い材料をコーティングする場合がある。金属膜１４と高透過板１２との密着には、高導電性接着剤を用いるほか、めっき法、ろう付け法、固相接合法、溶接法、溶湯接合法等の各種の接合方法を採用することができる。 When the generated voltage increases due to the series and parallel connection patterns, a material having high electrical insulation may be inserted between the metal film 14 and the high transmission plate 12. Further, the metal wire 15 may be coated with a material having high electrical insulation. For the adhesion between the metal film 14 and the high transmission plate 12, various bonding methods such as a plating method, a brazing method, a solid phase bonding method, a welding method, and a molten metal bonding method are employed in addition to using a highly conductive adhesive. be able to.
　地上に降り注ぐ太陽光は、主に直達光Ｌ１と散乱光Ｌ２とに分類することができる。直達光Ｌ１は、太陽の光球とその近傍から直接入射するほぼ平行な太陽光線（視野角±０．２５６°～±５°）であり、散乱光Ｌ２は、大気中の微粒子やガスによって散乱され、天空の全体から入射する太陽光線である。直達光Ｌ１は、レンズやミラーで高倍率集光することが可能であるが、散乱光Ｌ２は、熱力学的制限により、弱い集光しかできないという特性がある。 Sunlight falling on the ground can be mainly classified into direct light L1 and scattered light L2. The direct light L1 is a substantially parallel sunlight ray (viewing angle ± 0.256 ° to ± 5 °) that is directly incident from the sun's photosphere and its vicinity, and the scattered light L2 is scattered by fine particles or gas in the atmosphere. Sun rays entering from the whole sky. The direct light L1 can be condensed at a high magnification by a lens or a mirror, but the scattered light L2 has a characteristic that it can only be weakly condensed due to thermodynamic limitations.
　日本においては、年間日射量の約６割を直達光Ｌ１が占め、残りの約４割を散乱光Ｌ２が占める。本実施例１では、年間日射量の約６割を占める直達光Ｌ１を、セル変換効率が約４０％（将来的には５０％超が見込まれる）の超高効率の太陽電池セル１３に集光して発電する一方、年間日射量の約４割を占める散乱光Ｌ２の大半を透過させる。従来の太陽電池パネルとは異なり、散乱光Ｌ２は太陽電池セル１３に当たらず透過してしまうが、太陽電池セル１３の変換効率が高いうえに、後述する追尾装置が設けられているので、より直達光Ｌ１の受光量が増大する。その結果、集光型太陽電池パネル１０ａでは、直達光Ｌ１だけからでも、従来の太陽電池パネル以上の発電量が実現される。しかも、散乱光Ｌ２の大半が高透過板１２を透過するので、後述のとおり、集光型太陽光発電装置αは、太陽光を必要とする他の用途にも利用可能である。このように、集光型太陽電池パネル１０ａは、貴重な太陽光を発電と他の用途とに無駄なく振り分けることが可能な、新たな集光型太陽電池パネルである。 In Japan, direct light L1 accounts for about 60% of the annual solar radiation, and scattered light L2 accounts for the remaining 40%. In the first embodiment, direct light L1, which accounts for about 60% of the amount of solar radiation, is collected in an ultra-high efficiency solar cell 13 having a cell conversion efficiency of about 40% (more than 50% is expected in the future). While generating light, it transmits most of the scattered light L2, which accounts for about 40% of the amount of solar radiation per year. Unlike the conventional solar battery panel, the scattered light L2 does not hit the solar battery cell 13 and is transmitted, but since the conversion efficiency of the solar battery cell 13 is high and a tracking device described later is provided, The amount of received direct light L1 increases. As a result, in the concentrating solar cell panel 10a, a power generation amount that is greater than that of the conventional solar cell panel is realized even from the direct light L1. And since most of the scattered light L2 permeate | transmits the highly transmissive board 12, as mentioned later, the concentrating solar power generation device (alpha) can be utilized also for the other use which requires sunlight. Thus, the concentrating solar cell panel 10a is a new concentrating solar cell panel that can distribute precious sunlight between power generation and other uses without waste.
　図２に、実施例１において、太陽電池セル１３の温度を熱解析シミュレーションによって予測した結果を示す。図２中、散乱光透過率７０％が実施例１（本発明）であり、比較のために、散乱光透過率０％の従来例も図示している。本熱解析の解析条件は以下のとおりである。
直達光：６００Ｗ／ｍ２
散乱光：４００Ｗ／ｍ２
外気温：２５℃
対流熱伝達率ｈ：５．７Ｗ／ｍ２Ｋ（無風時）
幾何学的集光倍率：３００倍
なお、セルサイズが１ｍｍ×１ｍｍの場合には、受光面サイズは１７．３２ｍｍ×１７．３２ｍｍであり、受光面面積をセル面積で除した幾何学的集光倍率は３００倍となる。したがって、高透過板１２の受光面積（回路面積も含む）は、太陽光総入射面積の９０％以上となる。ただし、金属膜１４の回路は通常不透明であるので、この分を考慮し、８０％以上が透過に有効な高透過板１２の受光（透過）面積とした。この受光（透過）面積８０％に高透過板１２の材料の太陽光透過率９０％を乗じると、散乱光透過率は約７０％となる。 In FIG. 2, the result of having predicted the temperature of the photovoltaic cell 13 by thermal analysis simulation in Example 1 is shown. In FIG. 2, the scattered light transmittance of 70% is Example 1 (the present invention), and for comparison, a conventional example of scattered light transmittance of 0% is also shown. The analysis conditions of this thermal analysis are as follows.
Direct light: 600 W / m 2
Scattered light: 400 W / m 2
Outside temperature: 25 ℃
Convective heat transfer coefficient h: 5.7 W / m 2 K (no wind)
Geometric condensing magnification: 300 times When the cell size is 1 mm × 1 mm, the light receiving surface size is 17.32 mm × 17.32 mm, and the geometric light condensing is obtained by dividing the light receiving surface area by the cell area. The magnification is 300 times. Therefore, the light receiving area (including the circuit area) of the highly transmissive plate 12 is 90% or more of the total sunlight incident area. However, since the circuit of the metal film 14 is usually opaque, considering this, 80% or more is set as the light receiving (transmitting) area of the high transmission plate 12 effective for transmission. When this light receiving (transmitting) area 80% is multiplied by the sunlight transmittance 90% of the material of the high transmission plate 12, the scattered light transmittance is about 70%.
　図２に示すように、実施例１（本発明）のセルサイズが１ｍｍ×１ｍｍの場合には、セル温度が約１００℃となり、化合物多接合型太陽電池セル等の温度使用条件を満たす。なお、本発明及び従来例において、そのセルサイズを小さくしていくと（例えば、０．５ｍｍ×０．５ｍｍ）、さらにセル温度が低下することが分かる。これは、セルサイズを小さくして分散配置することにより、セル面積に対するセル周囲長（放熱面）が増大することや、レンズ焦点距離の縮小によって熱抵抗が低減されること等により、放熱が促進されるからである。 As shown in FIG. 2, when the cell size of Example 1 (the present invention) is 1 mm × 1 mm, the cell temperature is about 100 ° C., which satisfies the temperature use condition of a compound multi-junction solar cell or the like. In addition, in this invention and a prior art example, when the cell size is made small (for example, 0.5 mm x 0.5 mm), it turns out that cell temperature falls further. This is because the cell peripheral length (heat dissipating surface) with respect to the cell area increases by reducing the cell size and the heat resistance is reduced by reducing the lens focal length, etc. Because it is done.
［実施例２］
　図３は、実施例２に係る集光型太陽電池パネルαの構成例を示す概略説明図である。図３（ａ）は、集光型太陽電池パネル１０（１０ｂ）の平面図を示す。図３（ｂ）は、図３（ａ）のＢ－Ｂ’線で破断した集光型太陽電池パネル１０（１０ｂ）の断面図を示す。 [Example 2]
FIG. 3 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel α according to the second embodiment. Fig.3 (a) shows the top view of the concentrating solar cell panel 10 (10b). FIG. 3B shows a cross-sectional view of the concentrating solar cell panel 10 (10b) taken along the line BB ′ in FIG.
（実施例２に係る集光型太陽電池パネルαの構造の概要）
　集光型太陽電池パネル１０ｂは、実施例１に係る集光型太陽電池パネル１０ａと同じ部材から構成されるが、太陽電池セル１３、１３同士の電気的接続において、金属ワイヤー１５を短くし、その代わりに金属膜１４を長くしたものである。実施例２に係る集光型太陽電池パネル１０ｂでは、実施例１に係る集光型太陽電池パネル１０ａよりも不透明な部分の面積は若干増大するが、接続回路の直列抵抗を低減させることが容易であり、高電流の場合において、変換効率を維持することができる。 (Outline of structure of concentrating solar cell panel α according to Example 2)
Although the concentrating solar cell panel 10b is comprised from the same member as the concentrating solar cell panel 10a which concerns on Example 1, in the electrical connection of the photovoltaic cells 13 and 13, shorten the metal wire 15, Instead, the metal film 14 is lengthened. In the concentrating solar cell panel 10b according to Example 2, the area of the opaque portion is slightly increased as compared with the concentrating solar cell panel 10a according to Example 1, but it is easy to reduce the series resistance of the connection circuit. In the case of a high current, the conversion efficiency can be maintained.
［実施例３］
　図４は、実施例３に係る集光型太陽電池パネルαの構成例を示す概略説明図である。図４（ａ）は、集光型太陽電池パネル１０（１０ｃ）の平面図を示す。図４（ｂ）は、図４（ａ）のＣ－Ｃ’線で破断した集光型太陽電池パネル１０（１０ｃ）の断面図を示す。 [Example 3]
FIG. 4 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel α according to the third embodiment. Fig.4 (a) shows the top view of the concentrating solar cell panel 10 (10c). FIG. 4B is a cross-sectional view of the concentrating solar cell panel 10 (10c) taken along the line CC ′ in FIG.
（実施例３に係る集光型太陽電池パネルαの構造の概要）
　集光型太陽電池パネル１０ｃは、実施例１に係る集光型太陽電池パネル１０ａ及び実施例２に係る集光型太陽電池パネル１０ｂと比較して、集光器１１のタイプと、太陽電池セル１３、１３同士の電気的接続方法が異なる。 (Outline of structure of concentrating solar cell panel α according to Example 3)
The concentrating solar panel 10c is different from the concentrating solar panel 10a according to the first embodiment and the concentrating solar panel 10b according to the second embodiment. 13 and 13 are different in electrical connection method.
　まず、集光器１１について解説する。実施例１及び２とは異なり、実施例３では、図４（ｂ）に示すように、集光器１１と太陽電池セル１３を実装した面との間には空気層１７が存在する。この空気層１７が存在することで、入射光線は、集光器１１から射出する際に、屈折率が高い集光器の材料（レンズ材料）と屈折率が低い空気との境界面で屈折し、その方向が変わる。よって、このようなセパレート型の集光器１１は、集光倍率が約３００倍以上と高い場合に適する。また、セパレート型の集光器１１としては、フレネルレンズ等の薄型の集光器が適している。 First, the collector 11 will be explained. Unlike Example 1 and 2, in Example 3, the air layer 17 exists between the surface which mounted the collector 11 and the photovoltaic cell 13 as shown in FIG.4 (b). Due to the presence of the air layer 17, incident light rays are refracted at the interface between the collector material (lens material) having a high refractive index and the air having a low refractive index when exiting from the collector 11. The direction changes. Therefore, such a separate concentrator 11 is suitable when the light condensing magnification is as high as about 300 times or more. Further, as the separate type condenser 11, a thin condenser such as a Fresnel lens is suitable.
　次いで、太陽電池セル１３、１３同士の電気的接続方法について解説する。実施例１及び２とは異なり、実施例３では、電気的接続の大部分を透明導電膜（例えば、ＩＴＯ膜）１８が担う構成となっている。実施例１と同様に、１つの太陽電池セル１３に対して、２つの金属膜１４ａ、１４ｂが島状に形成されているが、金属膜１４ａ、１４ｂと高透過板１２との間には透明導電膜１８がスパッタリング等によってパターニングされている。実施例１では、金属ワイヤー１５にて太陽電池セル１３、１３同士の電気的接続が行われているが、実施例３では、この透明導電膜１８が、太陽電池セル１３、１３同士を電気的に接続している。 Next, a method for electrically connecting the solar cells 13 and 13 will be described. Unlike the first and second embodiments, the third embodiment has a configuration in which a transparent conductive film (for example, an ITO film) 18 bears most of the electrical connection. Similarly to Example 1, two metal films 14 a and 14 b are formed in an island shape with respect to one solar battery cell 13, but transparent between the metal films 14 a and 14 b and the high transmission plate 12. The conductive film 18 is patterned by sputtering or the like. In Example 1, the solar cells 13 and 13 are electrically connected to each other by the metal wire 15. In Example 3, the transparent conductive film 18 electrically connects the solar cells 13 and 13 to each other. Connected to.
　このように、集光型太陽電池パネル１０ｃでは、回路が金属膜１４と金属ワイヤー１５と透明導電膜１８とを含み、金属膜１４が、太陽電池セル１３を担持しながら高透過板１２の表面に分散的にかつ高透過板１２とは電気的に絶縁であるように密着して設置され、金属ワイヤー１５及び透明導電膜１８は、金属膜１４と太陽電池セル１３との間を電気的に接続し、直列又は並列の電気回路を構成している。 As described above, in the concentrating solar cell panel 10 c, the circuit includes the metal film 14, the metal wire 15, and the transparent conductive film 18, and the metal film 14 supports the solar battery cell 13 and the surface of the highly transmissive plate 12. The metal wire 15 and the transparent conductive film 18 are electrically connected between the metal film 14 and the solar battery cell 13 so as to be dispersed and in close contact with the highly transmissive plate 12. Connected to form a series or parallel electric circuit.
　なお、この電気的接続方法では、パターニングによって複雑な直並列接続回路を比較的容易に形成することが可能であり、また実施例１及び２よりも透過率をさらに向上させることができる。なお、金属膜１４ａ、１４ｂを設けず、太陽電池セル１３を直接透明導電膜１８上に設置してもよい。なお、透明導電膜１８と金属膜１４との接合、又は透明導電膜１８と太陽電池セル１３との接合を容易にするために、両部材の間に他の材料で構成された層を挿入してもよい。 In this electrical connection method, a complicated series-parallel connection circuit can be formed relatively easily by patterning, and the transmittance can be further improved as compared with the first and second embodiments. Note that the solar cells 13 may be directly disposed on the transparent conductive film 18 without providing the metal films 14a and 14b. In order to facilitate the bonding between the transparent conductive film 18 and the metal film 14 or the bonding between the transparent conductive film 18 and the solar battery cell 13, a layer made of another material is inserted between both members. May be.
　なお、実施例１～３で述べた集光器１１と電気的接続方法との組み合わせには特に限定がない。例えば、実施例１の電気的接続方法と実施例３のセパレート型の集光器１１とを組み合わせてもよい。 Note that there is no particular limitation on the combination of the condenser 11 and the electrical connection method described in the first to third embodiments. For example, you may combine the electrical connection method of Example 1, and the separate type | mold collector 11 of Example 3. FIG.
［実施例４］
　図５は、実施例４に係る集光型太陽電池パネルαの構成例を示す概略説明図であり、集光型太陽電池パネル１０（１０ｄ）の断面図を示す。 [Example 4]
FIG. 5 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel α according to the fourth embodiment, and shows a cross-sectional view of the concentrating solar cell panel 10 (10d).
　実施例４では、実施例２に係る集光型太陽電池パネル１０ｂにおける高透過板１２の下面側に、低コストの非集光型太陽電池２３を設置している。これにより、集光型太陽電池パネル１０ｄの高透過板１２を透過した散乱光Ｌ２を電気に変換することができる。すなわち、先の実施例１～３とは異なり、実施例４では、高透過板１２を透過した散乱光Ｌ２を、集光型太陽光発電装置αの総発電量をさらに向上させるために利用することができる。 In Example 4, a low-cost non-condensing solar cell 23 is installed on the lower surface side of the high transmission plate 12 in the concentrating solar cell panel 10b according to Example 2. Thereby, the scattered light L2 which permeate | transmitted the highly transmissive board 12 of the concentrating solar cell panel 10d can be converted into electricity. That is, unlike the first to third embodiments, in the fourth embodiment, the scattered light L2 transmitted through the high transmission plate 12 is used to further improve the total power generation amount of the concentrating solar power generation device α. be able to.
［実施例５］
　図６（ａ）及び（ｂ）は、実施例５に係る集光型太陽電池パネルαの構成例を示す概略説明図である。図６（ａ）は、集光型太陽電池パネル１０（１０ｅ）の断面図を示す。図６（ｂ）は、セルパッケージ３０（３０ｅ１）の断面図を示す。 [Example 5]
6A and 6B are schematic explanatory diagrams illustrating a configuration example of the concentrating solar cell panel α according to the fifth embodiment. Fig.6 (a) shows sectional drawing of the concentrating solar cell panel 10 (10e). FIG. 6B shows a cross-sectional view of the cell package 30 (30e1).
　通常、集光型太陽電池パネルが超高倍率になるほど、集光型太陽光発電装置に備えられた追尾機構による僅かな追尾誤差であっても、パネルの焦点がずれ易くなる。このため、超高倍率の集光型太陽電池パネルには、焦点が多少ずれた場合であっても、太陽電池セルへの集光の確保、維持が可能な構造を設けておくことが望まれる。実施例５に係る集光型太陽電池パネル１０ｅは、焦点の多少のずれに係らず、太陽電池セル１３への集光を充分に確保、維持することが可能なパネルの一例である。 Usually, as the concentrating solar cell panel has an extremely high magnification, the panel is easily out of focus even with a slight tracking error due to the tracking mechanism provided in the concentrating solar power generation device. For this reason, it is desirable that the ultrahigh-magnification concentrating solar panel be provided with a structure capable of ensuring and maintaining condensing on the solar cells even when the focus is slightly deviated. . The concentrating solar cell panel 10e according to Example 5 is an example of a panel that can sufficiently secure and maintain the condensing light on the solar cells 13 regardless of a slight shift in focus.
　太陽電池セル１３を金属膜回路に実装する方法は、次のとおりである。図６（ａ）及び（ｂ）のように、太陽電池セル１３と、受光ガイド３１、導電性セル取り付け部材（ダイアタッチ部材）３２、絶縁体３３、及び導電性ブリッジ３４等の部材とを予め（別工程で）一体化したセルパッケージ３０ｅ１を複数用意し、セルパッケージ３０ｅ１の下面（本実施例５では、導電性ブリッジ３４の下面）に正負の電極平面が接続される構造としておく。このとき、受光ガイド３１と導電性ブリッジ３４との間も絶縁体によって絶縁されている。このセルパッケージ３０ｅ１を、予め接続箇所にハンダ３５を塗布しておいた金属膜１４上にマウントし、リフロー炉等で加熱することによって接着が完了する。このような実装方法は、多数のセルパッケージ３０ｅ１の実装をロボット等で高速に行うことを可能にするため、大量生産に適している。 The method of mounting the solar battery cell 13 on the metal film circuit is as follows. As shown in FIGS. 6A and 6B, the solar battery cell 13 and members such as the light receiving guide 31, the conductive cell mounting member (die attach member) 32, the insulator 33, and the conductive bridge 34 are previously provided. A plurality of integrated cell packages 30e1 are prepared (in a separate process), and a structure in which positive and negative electrode planes are connected to the lower surface of the cell package 30e1 (in this embodiment, the lower surface of the conductive bridge 34) is provided. At this time, the light receiving guide 31 and the conductive bridge 34 are also insulated by the insulator. Adhesion is completed by mounting the cell package 30e1 on the metal film 14 in which the solder 35 has been applied in advance to the connection locations and heating in a reflow furnace or the like. Such a mounting method is suitable for mass production because a large number of cell packages 30e1 can be mounted at high speed by a robot or the like.
　また、セルパッケージ３０ｅ１内の受光ガイド３１は、集光器１１によって集光された太陽光を反射させて太陽電池セル１３の受光面へ案内する反射面３１ａをさらに備える。図示した反射面３１ａは、太陽電池セル１３に向かって狭まりながら傾斜した傾斜面である。この傾斜面は、太陽電池セル１３が四角形状の場合は、四角錐形状であることが好ましく、太陽電池セル１３が円形状の場合は、円錐形状であることが好ましい。そのほか、回転複合放物面形状等であってもよい。また反射面３１ａとしては、アルミニウム、銀等を用い、蒸着や高反射率のめっき等の処理を行って、その鏡面反射率を８０％以上としたものが好ましい。これにより、集光器１１によって集光された太陽光の焦点が、太陽電池セル１３の発電有効面よりも若干ずれた場合であっても、受光ガイド３１の反射面３１ａでの反射作用によって、一定割合の光を捕捉して太陽電池セル１３に入射させることが可能となる。 The light receiving guide 31 in the cell package 30e1 further includes a reflecting surface 31a that reflects the sunlight collected by the condenser 11 and guides it to the light receiving surface of the solar battery cell 13. The illustrated reflecting surface 31 a is an inclined surface that is inclined while narrowing toward the solar battery cell 13. The inclined surface is preferably a quadrangular pyramid when the solar battery cell 13 has a quadrangular shape, and preferably has a conical shape when the solar battery cell 13 has a circular shape. In addition, a rotational composite paraboloid shape or the like may be used. Further, as the reflecting surface 31a, it is preferable to use aluminum, silver or the like and perform a treatment such as vapor deposition or plating with high reflectance so that the mirror reflectance is 80% or more. Thereby, even if the focal point of the sunlight condensed by the condenser 11 is slightly shifted from the power generation effective surface of the solar battery cell 13, due to the reflecting action on the reflecting surface 31 a of the light receiving guide 31, A certain percentage of light can be captured and incident on the solar cells 13.
［実施例６］
　図６（ａ）及び（ｃ）は、実施例６に係る集光型太陽電池パネルαの構成例を示す概略説明図である。図６（ａ）は、集光型太陽電池パネル１０（１０ｅ）の断面図を示す。図６（ｃ）は、セルパッケージ３０（３０ｅ２）の断面図を示す。 [Example 6]
6A and 6C are schematic explanatory diagrams illustrating a configuration example of the concentrating solar cell panel α according to the sixth embodiment. Fig.6 (a) shows sectional drawing of the concentrating solar cell panel 10 (10e). FIG. 6C shows a cross-sectional view of the cell package 30 (30e2).
　通常、例えば１００倍以上といった高倍率の集光型太陽電池パネルの場合、その放熱性能をより強化、向上させることが望まれる。実施例６に係る集光型太陽電池パネル１０ｅは、先の実施例５に係る集光型太陽電池パネル１０ｅと同様に、焦点の多少のずれに係らず、太陽電池セル１３への集光を充分に確保、維持することが可能なだけでなく、その放熱性能が促進、向上されたパネルの一例である。 Usually, in the case of a concentrating solar cell panel with a high magnification of, for example, 100 times or more, it is desired to further enhance and improve its heat dissipation performance. Similar to the concentrating solar cell panel 10e according to the fifth embodiment, the concentrating solar cell panel 10e according to the sixth embodiment focuses light on the solar cells 13 regardless of a slight shift in focus. It is an example of a panel that not only can be sufficiently secured and maintained, but also has improved and improved heat dissipation performance.
　実施例６に係るセルパッケージ３０ｅ２は、実施例５に係るセルパッケージ３０ｅ１と略同様の構成であるが、図６（ｃ）に示すように、太陽電池セル１３の温度の低減のために、受光ガイド３１（好ましくは、アルミニウム製）の一部を突起させた放熱フィン３６を備えていることを特徴とする。なお、透過率を維持しつつ放熱性能を向上させるために、セルパッケージ３０ｅ２を真上から見たとき、放熱フィン３６の投影面が、金属膜１４上にほぼ重なるになるように、該放熱フィン３６を配置することが好ましい。 The cell package 30e2 according to the sixth embodiment has substantially the same configuration as that of the cell package 30e1 according to the fifth embodiment. However, as shown in FIG. The heat dissipating fin 36 having a part of the guide 31 (preferably made of aluminum) protruded is provided. In order to improve the heat radiation performance while maintaining the transmittance, the heat radiation fin 36 is projected so that the projection surface of the heat radiation fin 36 substantially overlaps the metal film 14 when the cell package 30e2 is viewed from directly above. 36 is preferably arranged.
［実施例７］
　図７は、実施例７に係る集光型太陽電池パネルαの構成例を示す概略説明図である。図７（ａ）は、集光型太陽電池パネル１０（１０ｆ）の断面図を示す。図７（ｂ）は、集光型太陽電池パネル１０（１０ｆ）の平面図を示す。 [Example 7]
FIG. 7 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel α according to the seventh embodiment. Fig.7 (a) shows sectional drawing of the concentrating solar cell panel 10 (10f). FIG.7 (b) shows the top view of the concentrating solar cell panel 10 (10f).
　実施例７では、先の実施例６と同様に、太陽電池セル１３の温度のさらなる低減を目的としている。実施例７に係る集光型太陽電池パネル１０ｆでは、高透過板１２の厚さを小さくして熱抵抗を低減し、その剛性を維持するために、ハニカム構造材３７を高透過板１２の下面に貼付している。なお、ハニカム構造材３７の材料は、アルミニウム等の金属のほか、透明樹脂等であってもよい。金属を用いた場合は、不透明となるので、ハニカム構造材３７の高さ（厚さ）を抑える必要がある。また、ハニカム構造材３７の設置によって、放熱面積も増大する。 Example 7 aims to further reduce the temperature of the solar battery cell 13 as in Example 6 above. In the concentrating solar cell panel 10f according to Example 7, in order to reduce the thermal resistance by reducing the thickness of the high transmission plate 12, and to maintain the rigidity thereof, the honeycomb structure material 37 is disposed on the lower surface of the high transmission plate 12. It is affixed to. In addition, the material of the honeycomb structure material 37 may be a transparent resin or the like in addition to a metal such as aluminum. When metal is used, it becomes opaque, so it is necessary to suppress the height (thickness) of the honeycomb structure material 37. Further, the installation of the honeycomb structure material 37 increases the heat radiation area.
［実施例８］
　図８（ａ）及び（ｂ）は、実施例８に係る集光型太陽電池パネルβの構成例を示す概略説明図である。図８（ａ）は、集光型太陽電池パネル１０（１０ｇ）の断面図を示す。図８（ｂ）は、セルパッケージ３０（３０ｇ）の断面図を示す。 [Example 8]
FIGS. 8A and 8B are schematic explanatory diagrams illustrating a configuration example of the concentrating solar cell panel β according to the eighth embodiment. Fig.8 (a) shows sectional drawing of the concentrating solar cell panel 10 (10g). FIG. 8B shows a cross-sectional view of the cell package 30 (30g).
　実施例８に係る集光型太陽電池パネル１０ｇも、実施例６に係る集光型太陽電池パネル１０ｅ及び実施例７に係る集光型太陽電池パネル１０ｆと同様に、その放熱性能が促進、向上されたパネルの一例である。 Similar to the concentrating solar cell panel 10e according to Example 6 and the concentrating solar cell panel 10f according to Example 7, the heat dissipation performance of the concentrating solar cell panel 10g according to Example 8 is promoted and improved. It is an example of the made panel.
　通常ガラス板等の高透過板の厚さは、集光型太陽電池パネルの剛性を確保するためには、３～５ｍｍ程度が必要である。このような高透過板の上側に太陽電池セルを配置すると、太陽電池セルと高透過板と外気との間の熱抵抗が高いため、太陽電池セルが高温になり易い。 In general, the thickness of a high transmission plate such as a glass plate is required to be about 3 to 5 mm in order to ensure the rigidity of the concentrating solar cell panel. When a solar battery cell is disposed on the upper side of such a high transmission plate, the solar battery cell is likely to reach a high temperature because the thermal resistance between the solar battery cell, the high transmission plate and the outside air is high.
　そこで、太陽電池セル１３と高透過板１２と外気との間の熱抵抗を格段に軽減するために、実施例８に係る集光型太陽電池パネル１０ｇのように、高透過板１２の下側（受光面とは反対側の面）に金属膜１４と太陽電池セル１３とを配置する構成とした。すなわち、実施例８に係る集光型太陽電池パネル１０ｇでは、受光ガイド３１等の部材と太陽電池セル１３とを予め一体化したセルパッケージ３０（３０ｇ）が複数構成され、封止材３８によって該セルパッケージ３０ｇが高透過板１２の受光面とは反対側の面上に分散的に封止されている。なお、符号３４ｂは、導電性ブリッジ３４と金属膜１４との間を接続する導電体を示す。 Therefore, in order to remarkably reduce the thermal resistance between the solar cells 13, the high transmission plate 12 and the outside air, like the concentrating solar cell panel 10 g according to Example 8, the lower side of the high transmission plate 12. It was set as the structure which arrange | positions the metal film 14 and the photovoltaic cell 13 in (the surface on the opposite side to a light-receiving surface). That is, in the concentrating solar cell panel 10g according to Example 8, a plurality of cell packages 30 (30g) in which a member such as the light receiving guide 31 and the solar cells 13 are integrated in advance are configured. The cell package 30g is dispersively sealed on the surface of the high transmission plate 12 opposite to the light receiving surface. Reference numeral 34 b denotes a conductor that connects the conductive bridge 34 and the metal film 14.
　実施例８に係る集光型太陽電池パネル１０ｇでは、パネル剛性を気にせずに封止材３８の厚さを任意に調整することができる。その結果、図８（ｂ）に示すように、太陽電池セル１３の位置から外気までの距離ＬＡを、高透過板１２の上側（表面上）に太陽電池セル１３を配置した場合の該太陽電池セル１３の位置から外気までの距離ＬＢ（図６（ｂ）参照）よりも、格段に短くすることができる。これにより、集光型太陽電池パネル１０ｇの放熱量を増大させることができ、太陽電池セル１３の温度が低減する。 In the concentrating solar cell panel 10g according to Example 8, the thickness of the sealing material 38 can be arbitrarily adjusted without worrying about panel rigidity. As a result, as shown in FIG. 8 (b), the solar cell when the solar cell 13 is arranged on the upper side (on the surface) of the highly transmissive plate 12 with the distance LA from the position of the solar cell 13 to the outside air. The distance LB from the position of the cell 13 to the outside air (see FIG. 6B) can be much shorter. Thereby, the thermal radiation amount of the concentrating solar cell panel 10g can be increased, and the temperature of the solar cell 13 is reduced.
　また、セルパッケージ３０ｇの近傍に、放熱フィン、ヒートスプレッダー等（いずれも図示せず）を付与することも可能である。ヒートスプレッダーには、グラフェンシート等の面方向の熱伝導率が高い薄膜等を使用することが好ましい。封止材３８の外気側表面には、防汚コーティング、傷に強いハードコート等の処理を行うこともできる。 Also, it is possible to add a heat radiating fin, a heat spreader or the like (none of which is shown) in the vicinity of the cell package 30g. For the heat spreader, it is preferable to use a thin film having a high thermal conductivity in the surface direction, such as a graphene sheet. The outside air side surface of the sealing material 38 can be subjected to a treatment such as antifouling coating and a hard coat resistant to scratches.
（１’）集光型太陽電池パネルＩＩ
　集光型太陽光発電装置γに備えられる集光型太陽電池パネルγの各々は、少なくとも以下の（１’－１）～（１’－３）を備えている。なお、本明細書において、集光型太陽電池パネルγを集光型太陽電池パネルＩＩともいう。
（１’－１）太陽光を集光する集光器
（１’－２）集光器によって集光された太陽光を受光して発電する複数の太陽電池セル
（１’－３）太陽電池セルに電気的に接続可能な回路 (1 ') Concentrating solar cell panel II
Each of the concentrating solar cell panels γ included in the concentrating solar power generation device γ includes at least the following (1′-1) to (1′-3). In this specification, the concentrating solar cell panel γ is also referred to as a concentrating solar cell panel II.
(1'-1) Concentrator for concentrating sunlight (1'-2) A plurality of solar cells (1'-3) solar cells that receive sunlight collected by the concentrator and generate electric power Circuits that can be electrically connected to cells
　ここで、前記複数の太陽電池セルは、前記集光型太陽電池パネルＩＩにおいて、各々の間に空間を設けて分散的に配置される。太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であることを特徴とする。なお、太陽電池セルと接続して電気回路を構成する各部材の総受光面積（太陽電池セル以外に太陽光からの散乱光の入射を遮る総面積）は、太陽光総入射面積の１０％未満に設定されていることが好ましい。太陽電池セルの全受光面積が太陽光総入射面積の１０％を超えると、目的とする超高倍率の集光型太陽電池パネルＩＩの作製が困難となる。 Here, in the concentrating solar cell panel II, the plurality of solar cells are arranged in a distributed manner with spaces therebetween. The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area. In addition, the total light receiving area (total area that blocks the incident of scattered light from sunlight other than solar cells) of each member that constitutes an electric circuit connected to the solar cells is less than 10% of the total sunlight incident area It is preferable that it is set to. If the total light receiving area of the solar battery cell exceeds 10% of the total sunlight incident area, it becomes difficult to produce a target concentrating solar battery panel II with a super-high magnification.
　集光型太陽電池パネルＩＩは、基本的に、集光型太陽電池パネルＩの構造から高透過板が除かれた構造を有し、その構成部材の材料、配置等は、集光型太陽電池パネルＩのものと同様であればよい。 The concentrating solar cell panel II basically has a structure in which a highly transmissive plate is removed from the structure of the concentrating solar cell panel I, and the material and arrangement of its constituent members are the concentrating solar cell. It may be the same as that of panel I.
［実施例９］
　図９は、実施例９に係る集光型太陽電池パネルγの構成例を示す概略説明図である。図９（ａ）は、集光型太陽電池パネル１０（１０ｈ）の平面図を示す。図９（ｂ）は、図９（ａ）のＨ－Ｈ’線で破断した集光型太陽電池パネル１０（１０ｈ）の断面図を示す。 [Example 9]
FIG. 9 is a schematic explanatory diagram illustrating a configuration example of the concentrating solar cell panel γ according to the ninth embodiment. Fig.9 (a) shows the top view of the concentrating solar cell panel 10 (10h). FIG. 9B shows a cross-sectional view of the concentrating solar cell panel 10 (10h) taken along the line HH ′ of FIG. 9A.
（実施例９に係る集光型太陽電池パネルγの構造の概要）
　実施例９に係る集光型太陽電池パネルγは、例えば図１に示される実施例１に係る集光型太陽電池パネルαの構造から高透過板１２が除かれた構造を有する。図９に示される集光型太陽電池パネル１０は、太陽光を集光する集光器（セル封止型集光器）１１と、太陽電池セル１３と、金属膜１４と、太陽電池セル１３、１３同士を電気的に接続する金属ワイヤー１５と、太陽電池セル１３の一群の発電電力を外部に取り出すリード線１６と、から構成されている。複数の金属膜１４及びその表面の太陽電池セル１３は、各々支持部材１９ｂの表面に設けられている。複数の支持部材１９ｂは、集光型太陽電池パネル１０の筐体（図示せず）内に、各々の間に空間１９ａを設けて配置されている。 (Outline of structure of concentrating solar cell panel γ according to Example 9)
The concentrating solar cell panel γ according to Example 9 has a structure in which the high-transmitting plate 12 is removed from the structure of the concentrating solar cell panel α according to Example 1 illustrated in FIG. 1, for example. A concentrating solar panel 10 shown in FIG. 9 includes a concentrator (cell-sealed concentrator) 11 that condenses sunlight, a solar cell 13, a metal film 14, and a solar cell 13. , 13 are electrically connected to each other, and a lead wire 16 that takes out a group of generated power of the solar battery cell 13 to the outside. The plurality of metal films 14 and the solar cells 13 on the surfaces thereof are respectively provided on the surface of the support member 19b. The plurality of support members 19b are arranged in a housing (not shown) of the concentrating solar cell panel 10 with a space 19a provided therebetween.
　実施例９では、金属膜１４は支持部材１９ｂの集光器１１側の表面に密着して形成されており、１つの太陽電池セル１３に対して２つの金属膜１４ａ、１４ｂを島状に形成し、一方の金属膜１４ａの集光器１１側の表面には、太陽電池セル１３の裏面電極（ここでは＋極）が密着して形成されている。また、この太陽電池セル１３の表面電極（ここでは－極）から、他方の金属膜１４ｂの表面に金属ワイヤー１５がボンディングされている。なお、実施例９では、生産性を向上させるために前記のごとき回路接続構成を採用したが、必ずしもこれに限定されない。金属膜１４を前記のごとく分割せずに、１つの太陽電池セル１３に対して１つの金属膜１４を設置する構成を採用してもよい。 In Example 9, the metal film 14 is formed in close contact with the surface of the support member 19b on the collector 11 side, and two metal films 14a and 14b are formed in an island shape with respect to one solar cell 13. And the back surface electrode (here + electrode) of the photovoltaic cell 13 is closely_contact | adhered and formed in the surface at the side of the collector 11 of one metal film 14a. Further, a metal wire 15 is bonded from the surface electrode (here, the negative electrode) of the solar battery cell 13 to the surface of the other metal film 14b. In the ninth embodiment, the circuit connection configuration as described above is employed in order to improve productivity, but the present invention is not necessarily limited thereto. You may employ | adopt the structure which installs one metal film 14 with respect to one photovoltaic cell 13, without dividing | segmenting the metal film 14 as mentioned above.
　集光型太陽電池パネル１０ｈでは、回路が金属膜１４と金属ワイヤー１５とを含み、金属ワイヤー１５は、金属膜１４と太陽電池セル１３との間を電気的に接続し、直列又は並列の電気回路を構成している。 In the concentrating solar cell panel 10h, the circuit includes a metal film 14 and a metal wire 15, and the metal wire 15 electrically connects the metal film 14 and the solar battery cell 13 to provide electric power in series or in parallel. The circuit is configured.
　太陽電池セル１３と、金属膜１４と、金属ワイヤー１５との全ての構成部材を集光器１１の材料で封止するように、集光器１１を形成する。実施例９では、集光器１１の受光側表面はドーム状のレンズアレイとなっている。 The collector 11 is formed so that all the constituent members of the solar battery cell 13, the metal film 14, and the metal wire 15 are sealed with the material of the collector 11. In Example 9, the light-receiving side surface of the condenser 11 is a dome-shaped lens array.
　このように構成した集光型太陽電池パネル１０ｈを、後述する追尾装置（例えば、図１０参照）に搭載すると、図９（ｂ）に示すように、直達光Ｌ１は、集光器１１によって太陽電池セル１３に集光され、電気に変換される。一方、全方位から入射する散乱光Ｌ２は、太陽電池セル１３には集光されず、その大半が太陽電池セル１３同士の間の空間１９ａを通過する。なお、このように太陽電池セル１３同士の間の空間１９ａを通過した散乱光Ｌ２の光路に、支持部材１９ｂが配置されている場合もあるので、該支持部材１９ｂは、太陽光透過率が高い材料からなることが好ましい。例えば高透過板１２の材料と同様に、ガラス部材のほか、アクリル系樹脂、ポリカーボネート系樹脂等の樹脂からなる部材を支持部材１９ｂとして用いることができる。 When the concentrating solar cell panel 10h configured as described above is mounted on a tracking device (see, for example, FIG. 10) described later, the direct light L1 is transmitted by the concentrator 11 as shown in FIG. It is condensed on the battery cell 13 and converted into electricity. On the other hand, the scattered light L2 incident from all directions is not condensed on the solar cells 13, and most of the light passes through the space 19 a between the solar cells 13. In addition, since the support member 19b may be arrange | positioned in the optical path of the scattered light L2 which passed the space 19a between the photovoltaic cells 13 in this way, this support member 19b has high sunlight transmittance. It is preferable to consist of materials. For example, similarly to the material of the high transmission plate 12, a member made of a resin such as an acrylic resin or a polycarbonate resin in addition to a glass member can be used as the support member 19b.
　このとき、集光器１１の受光面面積（太陽光総入射面積）に対して、受光面の内側に配置（封止）された不透明な金属膜１４と金属ワイヤー１５とが占める総投影面積（すなわち、回路面積）の割合を１０％未満にすることが好ましい。これにより、太陽電池セル１３の全受光面積を太陽光総入射面積の１０％以下の超高倍率集光に設定した場合に、太陽電池セル１３同士の間の空間１９ａにおける受光面積を太陽光総入射面積の８０％以上とすることができる。 At this time, the total projected area occupied by the opaque metal film 14 and the metal wire 15 disposed (sealed) inside the light receiving surface with respect to the light receiving surface area (total sunlight incident area) of the condenser 11 ( In other words, the ratio of the circuit area is preferably less than 10%. Thereby, when the total light receiving area of the solar battery cells 13 is set to ultrahigh magnification condensing of 10% or less of the total sunlight incident area, the light receiving area in the space 19a between the solar battery cells 13 is changed to the total solar light receiving area. It can be 80% or more of the incident area.
　本実施例９では、直達光Ｌ１を、セル変換効率が約４０％の超高効率の太陽電池セル１３に集光して発電する一方、散乱光Ｌ２の大半を透過させる。従来の太陽電池パネルとは異なり、散乱光Ｌ２は太陽電池セル１３に当たらず透過してしまうが、太陽電池セル１３の変換効率が高いうえに、後述する追尾装置が設けられているので、より直達光Ｌ１の受光量が増大する。その結果、集光型太陽電池パネル１０ｈでは、直達光Ｌ１だけからでも、従来の太陽電池パネル以上の発電量が実現される。しかも、散乱光Ｌ２の大半が太陽電池セル１３同士の間の空間１９ａを通過するので、後述のとおり、集光型太陽光発電装置γは、太陽光を必要とする他の用途にも利用可能である。このように、集光型太陽電池パネル１０ｈは、貴重な太陽光を発電と他の用途とに無駄なく振り分けることが可能な、新たな集光型太陽電池パネルである。 In the ninth embodiment, the direct light L1 is collected and generated on the ultra-high efficiency solar cell 13 having a cell conversion efficiency of about 40%, while most of the scattered light L2 is transmitted. Unlike the conventional solar battery panel, the scattered light L2 does not hit the solar battery cell 13 and is transmitted, but since the conversion efficiency of the solar battery cell 13 is high and a tracking device described later is provided, The amount of received direct light L1 increases. As a result, in the concentrating solar cell panel 10h, a power generation amount that is greater than that of the conventional solar cell panel is realized even from the direct light L1 alone. Moreover, since most of the scattered light L2 passes through the space 19a between the solar cells 13, the concentrating solar power generation device γ can be used for other applications that require sunlight as described later. It is. Thus, the concentrating solar cell panel 10h is a new concentrating solar cell panel that can distribute precious sunlight to power generation and other uses without waste.
（２）駆動装置、（３）制御装置、及び（４）追尾装置
　以下に、本発明に係る集光型太陽光発電装置Ｉにおける前記（１）集光型太陽電池パネルＩ以外の構成、及び本発明に係る集光型太陽光発電装置ＩＩにおける前記（１’）集光型太陽電池パネルＩＩ以外の構成について説明する。（２）駆動装置、（３）制御装置、及び（４）追尾装置の構成は、本発明に係る集光型太陽光発電装置Ｉ及び集光型太陽光発電装置ＩＩにおいて共通である。本発明に係る集光型太陽光発電装置では、特に、（４）追尾装置の構成に大きな特徴がある。 (2) Drive device, (3) Control device, and (4) Tracking device In the following, the configuration other than the (1) concentrating solar panel I in the concentrating solar power generation device I according to the present invention, and A configuration other than the (1 ′) concentrating solar cell panel II in the concentrating solar power generation device II according to the present invention will be described. The configurations of (2) the driving device, (3) the control device, and (4) the tracking device are common to the concentrating solar power generation device I and the concentrating solar power generation device II according to the present invention. The concentrating solar power generation device according to the present invention is particularly characterized by (4) the configuration of the tracking device.
　図１０は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の一実施例を示す概略説明図である。例えば図１０に示すように、追尾装置５００は、アレイ状に配置される集光型太陽電池パネル１０の各々を搭載する複数の追尾子１００を備えている。追尾装置５００は、基台２０ｃ上に支柱２０ｂを介して設けられた架台２０ａの上に配置されている。追尾子１００の大きさは、例えば１０ｃｍ～５０ｃｍ角程度であることが好ましく、追尾装置５００の大きさは、例えば１ｍ×２ｍ程度であることが好ましい。図１０では、架台２０ａは、追尾装置５００上に搭載される集光型太陽電池パネル１０の各々が北側に向かって上向きに傾斜しているが、他の方向へ傾斜していてもよく、傾斜していなくてもよい。なお、図１０において、アレイ状に配置される集光型太陽電池パネル１０の数、追尾子１００の大きさ、追尾装置５００の大きさ等は一例にすぎず、これらは図１０に示されるものに限定されない。 FIG. 10 is a schematic explanatory view showing an example of the tracking device constituting the concentrating solar power generation device according to the embodiment of the present invention. For example, as shown in FIG. 10, the tracking device 500 includes a plurality of trackers 100 on which each of the concentrating solar cell panels 10 arranged in an array is mounted. The tracking device 500 is disposed on a gantry 20a provided on a base 20c via a column 20b. The size of the tracker 100 is preferably about 10 cm to 50 cm square, for example, and the size of the tracker 500 is preferably about 1 m × 2 m, for example. In FIG. 10, each of the concentrating solar cell panels 10 mounted on the tracking device 500 is inclined upward toward the north side, but the gantry 20a may be inclined in other directions. You don't have to. In FIG. 10, the number of concentrating solar cell panels 10 arranged in an array, the size of the tracker 100, the size of the tracking device 500, etc. are merely examples, and these are shown in FIG. It is not limited to.
　追尾装置５００は、前記集光型太陽電池パネル１０に備えられた高透過板１２を透過した散乱光成分又は太陽電池セル１３同士の間の空間１９ａを通過した散乱光成分を透過する材料で構成されている。追尾装置５００に備えられる複数の追尾子１００は、高透過板１２と同様に、太陽光透過率が８０％以上の材料からなることが好ましく、ガラスのほか、アクリル系樹脂、ポリカーボネート系樹脂等の樹脂を用いることができる。このように、追尾装置５００が高透過板１２を透過した散乱光成分又は太陽電池セル１３同士の間の空間１９ａを通過した散乱光成分を透過する材料で構成されているので、追尾装置５００からも散乱光を効率よく透過させることができ、散乱光を透過させることが可能な集光型太陽電池パネル１０の利用価値をさらに高めることができる。 The tracking device 500 is made of a material that transmits a scattered light component that has passed through the highly transmissive plate 12 provided in the concentrating solar cell panel 10 or a scattered light component that has passed through the space 19 a between the solar cells 13. Has been. The plurality of trackers 100 provided in the tracking device 500 are preferably made of a material having a sunlight transmittance of 80% or more, like the high-transmitting plate 12, and other than glass, such as acrylic resin, polycarbonate resin, and the like. Resin can be used. Thus, since the tracking device 500 is made of a material that transmits the scattered light component that has passed through the high-transmitting plate 12 or the scattered light component that has passed through the space 19a between the solar cells 13, the tracking device 500 In addition, the scattered light can be transmitted efficiently, and the utility value of the concentrating solar cell panel 10 capable of transmitting the scattered light can be further increased.
　また、前記のごとく散乱光を透過させることが可能な集光型太陽電池パネル１０の利用価値をさらに高める点で、本実施形態に係る集光型太陽光発電装置において、追尾装置５００を配置するための架台２０ａ、支柱２０ｂ、及び基台２０ｃも、追尾装置５００と同様に、高透過板１２を透過した散乱光成分又は太陽電池セル１３同士の間の空間１９ａを通過した散乱光成分を透過する材料で構成されていることが好ましい。 In addition, the tracking device 500 is arranged in the concentrating solar power generation device according to the present embodiment in that the utility value of the concentrating solar cell panel 10 capable of transmitting scattered light as described above is further increased. Similarly to the tracking device 500, the gantry 20a, the support column 20b, and the base 20c also transmit the scattered light component that has passed through the highly transmissive plate 12 or the scattered light component that has passed through the space 19a between the solar cells 13. It is preferable that it is comprised with the material to do.
　次に、図１０に示した追尾装置５００を備えた集光型太陽光発電装置について、図１１～図１３を参照しながら具体的に説明する。 Next, a concentrating solar power generation apparatus provided with the tracking device 500 shown in FIG. 10 will be specifically described with reference to FIGS.
　図１１は、本実施形態において追尾装置５００を構成する追尾子１００の構造例を示す概略説明図である。図１２は、本実施形態において追尾装置５００を構成する追尾子１００の折り畳まれた状態の構造例を示す概略説明図である。図１２（ａ）は、追尾子１００の略上方から見た図である。図１２（ｂ）は、追尾子１００の略横方向から見た図である。図１３は、本実施形態に係る集光型太陽光発電装置を構成する追尾装置５００の制御を実現するための配線・伝達軸構造例を示す概略説明図である。 FIG. 11 is a schematic explanatory diagram illustrating an example of the structure of the tracker 100 included in the tracking device 500 in the present embodiment. FIG. 12 is a schematic explanatory diagram illustrating an example of the structure of the tracker 100 that configures the tracking device 500 in the folded state in the embodiment. FIG. 12A is a view of the tracker 100 viewed from substantially above. FIG. 12B is a diagram of the tracker 100 viewed from a substantially lateral direction. FIG. 13 is a schematic explanatory diagram illustrating an example of a wiring / transmission shaft structure for realizing control of the tracking device 500 configuring the concentrating solar power generation device according to the present embodiment.
　本発明の一実施形態に係る集光型太陽光発電装置は、複数の集光型太陽電池パネル１０を搭載する、例えば図１０に示す追尾子１００を複数備えた追尾装置５００と、複数の集光型太陽電池パネル１０を駆動する、例えば図１３に示す駆動装置４５０と、複数の集光型太陽電池パネル１０が予め設定された太陽軌道を追尾するように駆動装置４５０の駆動量を制御する、例えば図１３に示す制御装置４００とを有している。 A concentrating solar power generation apparatus according to an embodiment of the present invention includes a tracking device 500 that includes a plurality of concentrators 100 shown in FIG. For example, the driving device 450 shown in FIG. 13 that drives the optical solar cell panel 10 and the drive amount of the driving device 450 are controlled so that the plurality of concentrating solar cell panels 10 track a preset solar orbit. For example, it has the control apparatus 400 shown in FIG.
　図１１に示すように、追尾子１００は、集光型太陽電池パネル１０を上面に搭載する、例えばＴ字状の保持部材１１０（１１０ａ部分と１１０ｂ部分とからなる）と、保持部材１１０に連結する追尾機構とを備えている。追尾機構は、連結する保持部材１１０上に集光型太陽電池パネル１０が搭載された状態で、図１０に示した架台２０ａに設置されて用いられる。 As shown in FIG. 11, the tracker 100 is connected to the holding member 110, for example, a T-shaped holding member 110 (consisting of a 110a portion and a 110b portion) on which the concentrating solar cell panel 10 is mounted on the upper surface. And a tracking mechanism. The tracking mechanism is installed and used on the gantry 20a shown in FIG. 10 in a state where the concentrating solar cell panel 10 is mounted on the holding member 110 to be connected.
　ここで、本実施形態では、追尾子１００は、前記駆動装置４５０の制御された駆動量に基づいて、保持部材１１０における少なくとも３点を駆動することにより、集光型太陽電池パネル１０が予め設定された太陽軌道を追尾するように構成されている。図１１に示す一例では、保持部材１１０の形状はＴ字状である。該Ｔ字状の保持部材１１０における３点として、例えば３つの端部（第１の駆動点、第２の駆動点、及び第３の駆動点に対応する）がある。これら３つの端部のうち、互いに対抗する一対の端部としての第１の端部Ａ及び第２の端部Ｂには、例えば図１１に示すように、第１のリボンＡＴ及び第２のリボンＢＴが、例えばネジによってそれぞれ取り付けられている。そして、残りの端部としての第３の端部Ｃには、ワイヤーＣＴが、例えば開口部Ｃｈを介して取り付けられている。なお、ワイヤーＣＴには、例えばバネ等の弾性部材（図示せず）を介在させることが好ましい。このような構成とするのは、後述するように、第１のリボンＡＴ及び第２のリボンＢＴに対するような精密制御がワイヤーＣＴ部分には要求されておらず、第１のリボンＡＴ及び第２のリボンＢＴの位置を必要なタイミングで元に戻すためには、バネ等の弾性部材が介在していると効果的であるからである。 Here, in the present embodiment, the tracker 100 drives the at least three points of the holding member 110 based on the controlled driving amount of the driving device 450, so that the concentrating solar cell panel 10 is preset. Configured to track the solar orbit. In the example shown in FIG. 11, the shape of the holding member 110 is T-shaped. The three points on the T-shaped holding member 110 include, for example, three end portions (corresponding to the first drive point, the second drive point, and the third drive point). Among these three ends, the first end A and the second end B as a pair of ends facing each other include, for example, a first ribbon AT and a second end as shown in FIG. The ribbons BT are respectively attached by screws, for example. And wire CT is attached to the 3rd end C as the remaining end via the opening Ch, for example. In addition, it is preferable to interpose elastic members (not shown), such as a spring, for example in wire CT. As will be described later, such a configuration is not required for the wire CT portion to be precisely controlled as to the first ribbon AT and the second ribbon BT, but the first ribbon AT and the second ribbon BT. This is because it is effective that an elastic member such as a spring is interposed in order to return the ribbon BT to the original position at a necessary timing.
　図１３に示す駆動装置４５０は、第１のリボンＡＴ及び第２のリボンＢＴの各々の巻き取りを行う、例えばサーボモーターである第１の駆動装置４５０ａ（第１のモーター）及び第２の駆動装置４５０ｂ（第２のモーター）と、ワイヤーＣＴの巻き取りを行う、例えばステッピングモーターである第３の駆動装置４５０ｃ（第３のモーター）とを備えている。また、制御装置４００は、第１の駆動装置４５０ａ、第２の駆動装置４５０ｂ、及び第３の駆動装置４５０ｃ（駆動装置４５０の３つの駆動部）の各々の巻き取り量を制御する。 The driving device 450 shown in FIG. 13 performs winding of each of the first ribbon AT and the second ribbon BT, for example, a first driving device 450a (first motor) that is a servo motor and a second driving. A device 450b (second motor) and a third driving device 450c (third motor), for example, a stepping motor, for winding the wire CT are provided. The control device 400 also controls the amount of winding of each of the first drive device 450a, the second drive device 450b, and the third drive device 450c (three drive units of the drive device 450).
　なお、第３の駆動装置４５０ｃとして、第３のモーターの代わりに、第３の駆動点に荷重を付与する荷重付与部材からなるものを用いることができる。該荷重付与部材として、一定の荷重を付与する定荷重バネを設けることができる。この場合、ワイヤーＣＴを設けることなく、定荷重バネの先端を第３の端部Ｃに取り付けてもよい。第３の駆動装置４５０ｃとして荷重付与部材からなるものを用いた場合には、制御装置４００は、第１の駆動装置４５０ａ及び第２の駆動装置４５０ｂの巻き取り量を制御するとともに、第３の駆動装置４５０ｃが付与する荷重を制御する。 In addition, what consists of a load provision member which provides a load to a 3rd drive point can be used instead of a 3rd motor as the 3rd drive device 450c. As the load applying member, a constant load spring for applying a constant load can be provided. In this case, the tip of the constant load spring may be attached to the third end C without providing the wire CT. In the case where a load applying member is used as the third driving device 450c, the control device 400 controls the amount of winding of the first driving device 450a and the second driving device 450b and the third driving device 450c. The load applied by the driving device 450c is controlled.
　このように、第３の駆動装置４５０ｃとして荷重付与部材からなるものを用いると、３点のうちの残りの１点は、例えば他の２点が駆動された位置から元に戻すような場合に駆動させればよいので、前記他の２点の制御とは異なって精密な位置制御を行わなくてもよい構造で実現が可能である。 As described above, when the third driving device 450c is composed of the load applying member, the remaining one of the three points is returned to the original position from the position where the other two points are driven, for example. Since it only needs to be driven, it can be realized with a structure that does not require precise position control unlike the control of the other two points.
　このような構成により、本実施形態に係る追尾装置５００を備えた集光型太陽光発電装置では、集光型太陽電池パネル１０を搭載する追尾子１００の各々を、駆動装置４５０により駆動させることができる。すなわち、保持部材１１０における３点の位置を制御して駆動させる構造により、集光型太陽電池パネル１０をより正確に太陽軌道に追尾させることができる。このように、分散可動型であって、簡易な構造の追尾装置５００を備えた集光型太陽光発電装置を、低コストで実現することができる。 With such a configuration, in the concentrating solar power generation apparatus including the tracking device 500 according to the present embodiment, each of the trackers 100 on which the concentrating solar cell panel 10 is mounted is driven by the driving device 450. Can do. That is, the concentrating solar cell panel 10 can be more accurately tracked in the solar orbit by a structure in which the positions of the three points on the holding member 110 are controlled and driven. As described above, a concentrating solar power generation device that is a distributed movable type and includes a tracking device 500 having a simple structure can be realized at low cost.
　本実施形態に係る簡易な構造の追尾装置５００を備えた集光型太陽光発電装置では、１つの制御装置４００が、複数の追尾子１００を介して、複数の集光型太陽電池パネル１０を一元制御することができる。 In the concentrating solar power generation apparatus provided with the tracking device 500 having a simple structure according to the present embodiment, one control device 400 includes a plurality of concentrating solar cell panels 10 via the plurality of tracking units 100. Central control is possible.
　なお、本実施形態では、保持部材１１０の形状がＴ字状である場合について説明したが、本発明の集光型太陽光発電装置において、保持部材の形状はＴ字状に限定されるものではない。保持部材として種々の形状のものを採用することができ、集光型太陽電池パネルを搭載可能な部材であって、そのうち少なくとも３点の位置を制御して駆動することができる構造であることが好ましい。また、本実施形態のように、制御して駆動する位置は３点に限定されるものではなく、４点以上であってもよい。制御して駆動する位置の数に応じて、適切に前記リボン、ワイヤー等の数を増加させることができる。 In addition, although this embodiment demonstrated the case where the shape of the holding member 110 was T shape, in the concentrating solar power generation device of this invention, the shape of a holding member is not limited to T shape. Absent. The holding member can be of various shapes and can be mounted with a concentrating solar cell panel and can be driven by controlling the position of at least three of them. preferable. Further, as in the present embodiment, the position to be controlled and driven is not limited to three points, and may be four or more points. The number of ribbons, wires, and the like can be appropriately increased according to the number of positions to be controlled and driven.
　ここで、追尾機構は、図１１に示すように、保持部材１１０を支える支柱部１５０と、該支柱部１５０を支える土台部２１０とを備えており、該土台部２１０が取り付け部２００を介して前記架台２０ａに設置される。なお、図面では、取り付け部２００が追尾子１００に対応して１組設けられているように示されているが、複数の追尾子１００が連結して架台２０ａ上に設置されるように、取り付け部２００は延伸された構造となっている。 Here, as shown in FIG. 11, the tracking mechanism includes a support column 150 that supports the holding member 110 and a base unit 210 that supports the support unit 150, and the base unit 210 is interposed via the attachment unit 200. It is installed on the gantry 20a. In the drawing, the attachment unit 200 is shown as being provided in one set corresponding to the tracker 100. However, the attachment unit 200 is attached so that a plurality of trackers 100 are connected and installed on the gantry 20a. The part 200 has a stretched structure.
　支柱部１５０は、開口部を有する頭部１３０と、該頭部１３０に連続する肩部１４０と、一体的に形成されている。また、保持部材１１０と支柱部１５０とは、頭部１３０内の開口部を通過するリング１２０が支柱部１５０の底部に接続するようにして、互いに連結している。このようにすると、保持部材１１０と支柱部１５０とが、頭部１３０の開口部を通過するリング１２０によって連結しているため、リング１２０を介して保持部材１１０の駆動が円滑に行われる。その結果、集光型太陽電池パネル１０をより正確に太陽軌道に追尾させることができる。 The support column 150 is integrally formed with a head 130 having an opening and a shoulder 140 continuous with the head 130. The holding member 110 and the support column 150 are coupled to each other so that the ring 120 passing through the opening in the head 130 is connected to the bottom of the support column 150. In this case, since the holding member 110 and the support column 150 are connected by the ring 120 that passes through the opening of the head 130, the driving of the holding member 110 is smoothly performed via the ring 120. As a result, the concentrating solar cell panel 10 can be more accurately tracked in the solar orbit.
　土台部２１０内には、前記第１のリボンＡＴ及び第２のリボンＢＴをそれぞれ通す第１のガイド１９０ａ及び第２のガイド１９０ｂが備えられており、ワイヤーＣＴを通す開通部２３０ｃを有する突き出し部２３０をさらに備えている。このようにすると、第１のリボンＡＴ及び第２のリボンＢＴが第１のガイド１９０ａ及び第２のガイド１９０ｂを通じて正確に巻き取られることが可能となる。さらに、ワイヤーＣＴが突き出し部２３０の開通部２３０ｃを通じて正確に巻き取られることが可能となる。ここで、これらの第１のリボンＡＴ、第２のリボンＢＴ、及びワイヤーＣＴは、例えば図１３の第１の牽引点３２０ａ、第２の牽引点３３０ａ、及び第３の牽引点３４０ａそれぞれに接続されており、制御装置４００によって制御された駆動装置４５０の駆動量で駆動される。 The base portion 210 is provided with a first guide 190a and a second guide 190b for passing the first ribbon AT and the second ribbon BT, respectively, and a protruding portion having an opening portion 230c for passing the wire CT. 230 is further provided. In this way, the first ribbon AT and the second ribbon BT can be accurately wound through the first guide 190a and the second guide 190b. Furthermore, the wire CT can be accurately wound through the opening 230c of the protrusion 230. Here, the first ribbon AT, the second ribbon BT, and the wire CT are connected to, for example, the first traction point 320a, the second traction point 330a, and the third traction point 340a in FIG. And is driven by the drive amount of the drive device 450 controlled by the control device 400.
　本実施形態に係る集光型太陽光発電装置において、支柱部１５０には、保持部材１１０の駆動量を制限する一対の肩部１４０が設けられている。前述のとおり、第１のリボンＡＴ、第２のリボンＢＴ、及びワイヤーＣＴが制御された駆動量で巻き取られることで、集光型太陽電池パネル１０が予め設定された太陽軌道を追尾するように、保持部材１１０が駆動する。肩部１４０は、例えば一対の端部である第１の端部Ａ及び第２の端部Ｂのいずれか一方が駆動量に応じて移動し、保持部材１１０を連結するリング１２０が頭部１３０の開口部内を一対の端部の移動方向に沿って移動することで、保持部材１１０全体が倒れてしまうことを防止する役割を有する。すなわち、肩部１４０が壁になることで、集光型太陽電池パネル１０を支える保持部材１１０が駆動方向から下に向かって倒れてしまうことを防止することができる。したがって、肩部１４０は、支柱部１５０から頭部１３０に向かう上下方向（と定義する）と垂直な左右方向（と定義する）に突き出すような形状を有している。なお、突き出すような形状の左右方向における上下方向に対する角度は、例えば垂直な形状となる角度であるほか、保持部材１１０が倒れることを防止できるような角度であればよく、特に限定されるものではない。 In the concentrating solar power generation apparatus according to the present embodiment, the support column 150 is provided with a pair of shoulder portions 140 that limit the driving amount of the holding member 110. As described above, the first solar panel AT, the second ribbon BT, and the wire CT are wound with a controlled driving amount so that the concentrating solar cell panel 10 tracks a preset solar trajectory. In addition, the holding member 110 is driven. For example, one of the first end A and the second end B, which is a pair of end portions, moves according to the driving amount, and the ring 120 that connects the holding member 110 includes the head portion 130. The holding member 110 has a role of preventing the entire holding member 110 from falling down by moving along the moving direction of the pair of end portions in the opening. That is, it is possible to prevent the holding member 110 that supports the concentrating solar cell panel 10 from falling down from the driving direction because the shoulder 140 becomes a wall. Therefore, the shoulder 140 has a shape protruding in the left-right direction (defined as) perpendicular to the up-down direction (defined as) from the support 150 to the head 130. In addition, the angle with respect to the up-down direction in the left-right direction of the shape that protrudes is, for example, an angle that becomes a vertical shape, and may be any angle that can prevent the holding member 110 from falling down, and is not particularly limited. Absent.
　図１１に示すように、追尾子１００には、支柱部１５０の下部を例えば３方向から覆うように保持する壁部１５５がさらに形成されている。一方、土台部２１０には、支柱部１５０を収納可能な溝部２１０ｈが設けられている。貫通孔２２０を介して壁部１５５から支柱部１５０を貫通する貫通部材２２０ｔ（例えばネジ）が挿入されていることで、支柱部１５０によって、追尾子１００は、集光型太陽光発電装置としての使用時に直立状態を保持することが可能となる。一方、追尾子１００が集光型太陽光発電装置としての例えば組立前の搬送時には、例えば図１２（ａ）の略上方向から見た図及び図１２（ｂ）の略横方向から見た図に示すように、前記貫通部材２２０ｔを取り外し、壁部１５５の底部の一対の支え部１７０ｒが支柱部１５０の底部の回動構造１６０ｓを挟み込む構造を通じて、支柱部１５０を傾倒させ、溝部２１０ｈに収納させることが可能となる。 As shown in FIG. 11, the tracker 100 is further formed with a wall portion 155 that holds the lower portion of the column portion 150 so as to cover, for example, three directions. On the other hand, the base portion 210 is provided with a groove portion 210 h that can accommodate the column portion 150. By inserting a penetrating member 220t (for example, a screw) penetrating the support column 150 from the wall 155 through the through hole 220, the support unit 150 allows the tracker 100 to function as a concentrating solar power generation device. It is possible to maintain an upright state during use. On the other hand, when the tracker 100 is transported as a concentrating solar power generation device, for example, before assembling, for example, a diagram viewed from a substantially upward direction in FIG. 12A and a diagram viewed from a substantially lateral direction in FIG. As shown in FIG. 3, the penetrating member 220t is removed, and the strut portion 150 is tilted through a structure in which the pair of support portions 170r at the bottom portion of the wall portion 155 sandwich the rotating structure 160s at the bottom portion of the strut portion 150, and stored in the groove portion 210h. It becomes possible to make it.
　このようにすると、複数の追尾子１００の搬送時において、支柱部１５０が溝部２１０ｈに収納されることにより、追尾子１００全体が折り畳まれたようなコンパクトな形態になる。よって、このような追尾子１００は、搬送時の可搬性に非常に優れていると共に、設置時の利便性にも非常に優れている。 In this way, when the plurality of trackers 100 are transported, the support column 150 is housed in the groove portion 210h, so that the entire tracker 100 is folded in a compact form. Therefore, such a tracker 100 is very excellent in the portability at the time of conveyance, and is also very excellent in the convenience at the time of installation.
　次に、図１３を参照しながら、本実施形態に係る集光型太陽光発電装置の駆動制御を実現するための配線・伝達軸構造について説明する。 Next, a wiring / transmission shaft structure for realizing drive control of the concentrating solar power generation device according to the present embodiment will be described with reference to FIG.
　図１１及び図１２で説明した構造を有する追尾子１００の各々が、各集光型太陽電池パネル１０を支持するように、アレイ状に配置されている。なお、図１３では集光型太陽電池パネル１０が例えば８個示されているが、これは説明の便宜上であって、その数及びそれを搭載する追尾子の数は、これに限定されるものではない。 Each of the trackers 100 having the structure described in FIG. 11 and FIG. 12 is arranged in an array so as to support each concentrating solar cell panel 10. In FIG. 13, for example, eight concentrating solar cell panels 10 are shown, but this is for convenience of explanation, and the number and the number of trackers on which the concentrating solar panel 10 is mounted are limited to this. is not.
　図１３に示すように、前記複数の追尾子１００を備える追尾装置５００には、複数の集光型太陽電池パネル１０を駆動する駆動装置４５０が接続されており、該駆動装置４５０には、複数の集光型太陽電池パネル１０が予め設定された太陽軌道を追尾するように駆動装置４５０の駆動量を制御する制御装置４００が接続されている。 As shown in FIG. 13, a tracking device 500 including the plurality of trackers 100 is connected to a driving device 450 that drives a plurality of concentrating solar cell panels 10, and the driving device 450 includes a plurality of driving devices 450. A control device 400 for controlling the drive amount of the drive device 450 is connected so that the concentrating solar cell panel 10 tracks a preset solar orbit.
　駆動装置４５０は、第１～第３の駆動装置４５０ａ～４５０ｃを含んでいる。第１の駆動装置４５０ａは、例えばサーボモーターであり、第１の駆動軸３２０と連結しており、追尾子１００の保持部材１１０における第１の端部Ａに取り付けられた第１のリボンＡＴを、第１の牽引点３２０ａにて、巻き取ることを可能にする。 The driving device 450 includes first to third driving devices 450a to 450c. The first driving device 450a is, for example, a servo motor, and is connected to the first driving shaft 320, and the first ribbon AT attached to the first end A of the holding member 110 of the tracker 100 is attached to the first driving device 450a. It is possible to wind at the first traction point 320a.
　第２の駆動装置４５０ｂは、例えばサーボモーターであり、第２の駆動軸３３０と連結しており、追尾子１００の保持部材１１０における第２の端部Ｂに取り付けられた第２のリボンＢＴを、第２の牽引点３３０ａにて、巻き取ることを可能にする。 The second driving device 450b is, for example, a servo motor, and is connected to the second driving shaft 330, and the second ribbon BT attached to the second end B of the holding member 110 of the tracker 100 is attached to the second driving device 450b. It is possible to wind at the second traction point 330a.
　第３の駆動装置４５０ｃは、例えばステッピングモーターであり、追尾子１００の保持部材１１０における第３の端部Ｃに取り付けられたワイヤーＣＴを、第３の駆動軸３４０を介して、第３の牽引点３４０ａにて、巻き取ることを可能にする。 The third driving device 450c is, for example, a stepping motor, and the third CT pulls the wire CT attached to the third end C of the holding member 110 of the tracker 100 via the third driving shaft 340. At point 340a, winding is enabled.
　次に、制御装置４００は、演算部４１０と処理部４２０と記憶部４３０とを備えている。制御装置４００では、複数の集光型太陽電池パネル１０が予め設定された太陽軌道を追尾するように、集光型太陽電池パネル１０に関する追尾情報として、例えば集光型太陽電池パネル１０の設置位置の緯度、経度、高度情報や、日時情報等から計算された情報を、記憶部４３０で保存しておく。そして、演算部４１０において、保持部材１１０の空間座標位置（例えば第１の端部Ａ、第２の端部Ｂ、及び第３の端部Ｃの空間座標位置を、基点Ｄの位置から定める）と記憶部４３０から取り出した追尾情報とから、第１のリボンＡＴ、第２のリボンＢＴ、及びワイヤーＣＴの巻き取り長さを計算し、処理部４２０を通じて、駆動装置４５０に指示する。なお、演算部４１０での巻き取り長さの計算では、保持部材１１０の空間座標位置の把握や各種の追尾情報、用いる各リボンやワイヤーの長さや厚み等の情報の把握、それらに基づいた駆動装置４５０に指示する駆動量の計算は、公知の技術で実現できるものである。 Next, the control device 400 includes a calculation unit 410, a processing unit 420, and a storage unit 430. In the control apparatus 400, as tracking information regarding the concentrating solar cell panel 10, for example, the installation position of the concentrating solar cell panel 10 so that the plurality of concentrating solar cell panels 10 track a preset solar orbit. Information calculated from the latitude, longitude, altitude information, date and time information, and the like is stored in the storage unit 430. And in the calculating part 410, the spatial coordinate position of the holding member 110 (For example, the spatial coordinate position of the 1st edge part A, the 2nd edge part B, and the 3rd edge part C is defined from the position of the base point D). And the tracking information extracted from the storage unit 430, the winding lengths of the first ribbon AT, the second ribbon BT, and the wire CT are calculated, and the driving unit 450 is instructed through the processing unit 420. Note that in the calculation of the winding length in the calculation unit 410, the spatial coordinate position of the holding member 110, various tracking information, the information such as the length and thickness of each ribbon and wire used, and the driving based on them The calculation of the driving amount instructed to the device 450 can be realized by a known technique.
　このようにして、複数の集光型太陽電池パネル１０が予め設定された太陽軌道を追尾する、本実施形態にて用いる追尾装置５００では、複数の集光型太陽電池パネル１０から取得される電力は、電気線３５０、３６０を通じて、パワーコンディショナ５１０に送られ、そこで、直流電力から交流電力に変換され、トランス５２０に送電される。トランス５２０は、パワーコンディショナ５１０で変換された交流電力を負荷である電力系統５３０に送電する。なお、パワーコンディショナ５１０は、コンバータ部、インバータ部、及び電圧制御部（いずれも図示せず）を有している。コンバータ部は、複数の追尾子１００から出力された直流電圧を昇圧する昇圧回路を構成している。また、コンバータ部には、各追尾子１００に対する動作指示情報に応じた出力電圧のデータが蓄積される。インバータ部は、コンバータ部から出力された直流電力を交流電力に変換するインバータ回路を構成している。電圧制御部は、ＭＰＰＴ（ｍａｘｉｍｕｍ　ｐｏｗｅｒ　ｐｏｉｎｔ　ｔｒａｃｉｎｇ　ｃｏｎｔｒｏｌ）制御を行うものである。なお、ＭＰＰＴ制御は、山のぼり法ともいわれ、電圧制御部は、各追尾子１００の出力電力（動作点）が最大電力点に近づくように、各追尾子の出力電圧を調整するものである。 In this way, in the tracking device 500 used in the present embodiment, in which the plurality of concentrating solar cell panels 10 track a preset solar trajectory, the electric power acquired from the plurality of concentrating solar cell panels 10 Is sent to the power conditioner 510 through the electric wires 350 and 360, where it is converted from DC power to AC power and transmitted to the transformer 520. The transformer 520 transmits the AC power converted by the power conditioner 510 to the power system 530 that is a load. The power conditioner 510 includes a converter unit, an inverter unit, and a voltage control unit (all not shown). The converter unit constitutes a booster circuit that boosts the DC voltage output from the plurality of trackers 100. Further, output voltage data corresponding to the operation instruction information for each tracker 100 is accumulated in the converter unit. The inverter unit constitutes an inverter circuit that converts DC power output from the converter unit into AC power. The voltage control unit performs MPPT (maximum power point tracking control) control. The MPPT control is also called a mountain climbing method, and the voltage control unit adjusts the output voltage of each tracker so that the output power (operating point) of each tracker 100 approaches the maximum power point.
　さらに、本実施形態に係る集光型太陽光発電装置において、集光型太陽電池パネル１０からの電気を取得する電気線３５０、３６０（第１の電気線、第２の電気線）が、複数の追尾子１００に連続して接続されている。また、影制御部３１０が、信号線を通じて、複数の追尾子１００のうち垂直に交差する２つの方向のうちの１つの方向に配置された追尾子１００の各々（図１３では、複数の追尾子１００のうち縦方向に配置された追尾子１００の各々）に連続して接続されている。影制御部３１０は、集光型太陽電池パネル１０にかかる影部分を考慮して、追尾子１００に対する電気線３５０、３６０の電気的な接続を電力線切替部３７０にて制御する。影制御部３１０は、制御装置４００が記憶部４３０に保存している前記追尾情報から計算された集光型太陽電池パネル１０の影部分の情報に基づいて、処理部４２０を介して、影制御部３１０に指示を行う。このようにすると、複数の集光型太陽電池パネル１０のうち、影になっている集光型太陽電池パネル１０と影になっていない集光型太陽電池パネル１０とが２つの電気線によって適切に制御され、影になっている集光型太陽電池パネル１０の発電電流量に全体が律速されることによる影響を回避することができる。例えば、前記ＭＰＰＴ制御による電圧制御で、集光型太陽電池パネル１０の並列制御が可能になるほか、電圧及び電流をともに制御することによる、直列制御する配線構造への電力線切替部３７０での適切な切り替えが可能になり、高集光率の集光型太陽光発電装置を実現することができる。なお、ここでは、２本の電気線３５０、３６０を設けて影になっている集光型太陽電池パネル１０による影響を制御する場合について説明したが、集光型太陽電池パネル１０に生じる影の程度で発電電流量は何段階にもなることから、３本以上の電気線を設けて段階的に制御し、性能を向上させることができる。 Furthermore, in the concentrating solar power generation apparatus according to the present embodiment, there are a plurality of electric lines 350 and 360 (first electric lines and second electric lines) that acquire electricity from the concentrating solar cell panel 10. Are continuously connected to the tracker 100. In addition, the shadow control unit 310 transmits each of the trackers 100 arranged in one of the two directions perpendicularly intersecting among the plurality of trackers 100 through the signal lines (in FIG. 13, the plurality of trackers). Each of the trackers 100 arranged in the vertical direction of 100 is connected continuously. The shadow control unit 310 controls the electrical connection of the electric lines 350 and 360 to the tracker 100 by the power line switching unit 370 in consideration of the shadow portion applied to the concentrating solar cell panel 10. The shadow control unit 310 performs shadow control via the processing unit 420 based on the information on the shadow portion of the concentrating solar cell panel 10 calculated from the tracking information stored in the storage unit 430 by the control device 400. The unit 310 is instructed. In this way, among the plurality of concentrating solar cell panels 10, the concentrating solar cell panel 10 that is in the shadow and the concentrating solar cell panel 10 that is not in the shadow are appropriate by the two electric lines. It is possible to avoid the influence of the overall rate-determining by the amount of power generation current of the concentrating solar cell panel 10 that is controlled and shaded. For example, the voltage control based on the MPPT control enables parallel control of the concentrating solar cell panel 10, and appropriate control in the power line switching unit 370 to the wiring structure to be serially controlled by controlling both voltage and current. Switching is possible, and a concentrating solar power generation device with a high concentration rate can be realized. In addition, although the case where two electric lines 350 and 360 are provided and the influence by the concentrating solar cell panel 10 in the shadow is controlled is described here, the shadow of the concentrating solar cell panel 10 is controlled. Since the amount of generated current can be in any number of stages, it is possible to improve the performance by providing three or more electric wires and controlling in stages.
　本実施形態にて用いる複数の追尾子１００の各々において、集光型太陽電池パネル１０を搭載する保持部材１１０の上面に、集光型太陽電池パネル１０を支える放熱板（図示せず）を設ける構造としてもよい。ここで、放熱板にはアルミニウム、銅等の熱伝導性の高い金属を用い、放熱板と集光型太陽電池パネル１０とを熱的に結合させ、集光型太陽電池パネル１０において上昇しやすい温度を、放熱構造により抑制することができる。 In each of the plurality of trackers 100 used in the present embodiment, a heat sink (not shown) that supports the concentrating solar cell panel 10 is provided on the upper surface of the holding member 110 on which the concentrating solar cell panel 10 is mounted. It is good also as a structure. Here, a metal having high thermal conductivity such as aluminum or copper is used for the heat sink, and the heat sink and the concentrating solar cell panel 10 are thermally coupled to each other so that the heat concentrating solar cell panel 10 is likely to rise. The temperature can be suppressed by the heat dissipation structure.
　本実施形態にて用いる追尾子１００では、保持部材１１０における第３の端部Ｃに取り付けられたワイヤーＣＴを、第３の駆動軸３４０を介して、第３の牽引点３４０ａにて巻き取る構成例について説明したが、ワイヤーＣＴの代わりに、第１の端部Ａに取り付けられた第１のリボンＡＴ及び第２の端部Ｂに取り付けられた第２のリボンＢＴと同様に、リボン（第３のリボン）を用いることもできる。また、定荷重バネ等の荷重付与部材の先端を第３の端部Ｃに取り付けた構成例においても、該荷重付与部材の代わりにリボン（第３のリボン）を用いることができる。このようにすると、第１のリボンＡＴ及び第２のリボンＢＴに加えて、第３のリボンも回転での巻き取りが可能となる。これらの場合、第１の駆動装置４５０ａ及び第２の駆動装置４５０ｂと同様に、第３の駆動装置４５０ｃは、例えばサーボモーターを用いることができる。 In the tracker 100 used in the present embodiment, the wire CT attached to the third end C of the holding member 110 is wound around the third traction point 340a via the third drive shaft 340. Although the example has been described, instead of the wire CT, the ribbon (the first ribbon AT attached to the first end A and the second ribbon BT attached to the second end B, as well as the ribbon (first 3 ribbons) can also be used. Also in the configuration example in which the tip of a load applying member such as a constant load spring is attached to the third end C, a ribbon (third ribbon) can be used instead of the load applying member. If it does in this way, in addition to 1st ribbon AT and 2nd ribbon BT, the 3rd ribbon can also be wound up by rotation. In these cases, similarly to the first driving device 450a and the second driving device 450b, the third driving device 450c can use a servo motor, for example.
　図１４は、本実施形態に係る集光型太陽光発電装置を構成する追尾装置５００の制御を実現するための配線・伝達軸構造例を示す概略説明図である。例えば図１４に示すように、第３の駆動装置４５０ｃは、第３の駆動軸３４０と連結しており、該第３の駆動軸３４０を横方向に回転させることで、追尾子１００の保持部材１１０における第３の端部Ｃに取り付けられたリボンを、第３の牽引点３４０ａにて巻き取ることを可能にする。 FIG. 14 is a schematic explanatory diagram showing an example of a wiring / transmission shaft structure for realizing control of the tracking device 500 constituting the concentrating solar power generation device according to the present embodiment. For example, as shown in FIG. 14, the third drive device 450 c is connected to the third drive shaft 340, and the third drive shaft 340 is rotated in the lateral direction, whereby the holding member for the tracker 100 is retained. The ribbon attached to the third end C at 110 can be taken up at the third traction point 340a.
　また、本実施形態に係る集光型太陽光発電装置には、架台の全体（追尾装置の全体）を覆う、透明部材からなるカバー（矩形状のケース）を設けることができる。 Moreover, the concentrating solar power generation device according to the present embodiment can be provided with a cover (rectangular case) made of a transparent member that covers the entire gantry (the entire tracking device).
　図１５は、本実施形態に係る集光型太陽光発電装置を構成する追尾装置の一実施例を示す概略説明図である。図１５に示すように、具体的には、架台２０ａの上に、その全体を覆うように、透明部材からなるカバー５５０が設けられている。該カバー５５０は、例えば図示する南側に位置する端部において、傾斜面５００ａが形成されるように突出部５００ｂを有している。このように、カバー５５０の適切な少なくとも一面で傾斜面５００ａが形成されているため、耐風性に優れた集光型太陽光発電装置を実現することができる。また、この場合、傾斜面５００ａの下側に、通常の追尾ではない太陽電池パネルを設置し、ＭＰＰＴ制御によって所定の電圧に昇圧し、他の太陽電池パネルと並列に接続すること、又は、電流を制御して直列に接続することも可能である。 FIG. 15 is a schematic explanatory diagram illustrating an example of the tracking device that configures the concentrating solar power generation device according to the present embodiment. As shown in FIG. 15, specifically, a cover 550 made of a transparent member is provided on the gantry 20a so as to cover the whole. The cover 550 has, for example, a protruding portion 500b so that an inclined surface 500a is formed at an end located on the south side in the drawing. Thus, since the inclined surface 500a is formed on at least one appropriate surface of the cover 550, a concentrating solar power generation device with excellent wind resistance can be realized. Also, in this case, a solar cell panel that is not a normal tracking is installed below the inclined surface 500a, boosted to a predetermined voltage by MPPT control, and connected in parallel with other solar cell panels, or current It is also possible to connect in series by controlling.
　なお、散乱光をより効率よく透過させ、散乱光を透過させることが可能な集光型太陽電池パネル１０の利用価値をさらに高める点で、本実施形態に係る集光型太陽光発電装置において、追尾装置５００の全体を覆うカバー５５０も、追尾装置５００と同様に、高透過板１２を透過した散乱光成分又は太陽電池セル１３同士の間の空間１９ａを通過した散乱光成分を透過する材料で構成されていることが好ましい。 In the concentrating solar power generation device according to the present embodiment, in terms of further enhancing the utility value of the concentrating solar cell panel 10 capable of transmitting scattered light more efficiently and transmitting scattered light, Similarly to the tracking device 500, the cover 550 covering the entire tracking device 500 is also made of a material that transmits the scattered light component that has passed through the highly transmissive plate 12 or the scattered light component that has passed through the space 19a between the solar cells 13. It is preferable to be configured.
　また、次述する図１６に示すように、本実施形態に係る集光型太陽光発電装置において、複数の追尾装置５００が互いに連結される構造の場合でも同様に、耐風性を向上させるために傾斜面を適切な面に設けるとよい。図１６は、本実施形態に係る、複数の追尾装置５００を備えた集光型太陽光発電装置の構成例を示す概略説明図である。例えば、南北方向及び東西方向の三行三列にアレイ状に配置された９つの追尾装置５００が連結された構造において、西側から東側へ、かつ、北側から南側へ位置する順に第１～第９の追尾装置５００が配置されているとすると、第１の追尾装置５００は北面と西面に傾斜面、第２の追尾装置５００は北面に傾斜面、第３の追尾装置５００は北面と東面に傾斜面、第４の追尾装置５００は西面に傾斜面、第５の追尾装置５００は傾斜面なし、第６の追尾装置５００は東面に傾斜面、第７の追尾装置５００は南面と西面に傾斜面、第８の追尾装置５００は南面に傾斜面、第９の追尾装置５００は南面と東面に傾斜面を設けるとよい。 In addition, as shown in FIG. 16 to be described below, in the concentrating solar power generation device according to the present embodiment, in order to improve wind resistance even in the case of a structure in which a plurality of tracking devices 500 are connected to each other. The inclined surface may be provided on an appropriate surface. FIG. 16 is a schematic explanatory diagram illustrating a configuration example of a concentrating solar power generation device including a plurality of tracking devices 500 according to the present embodiment. For example, in a structure in which nine tracking devices 500 arranged in an array in three rows and three columns in the north-south direction and the east-west direction are connected, the first to ninth orders are arranged in order from the west side to the east side and from the north side to the south side. If the first tracking device 500 is arranged, the first tracking device 500 is inclined on the north surface and the west surface, the second tracking device 500 is inclined on the north surface, and the third tracking device 500 is the north surface and the east surface. The fourth tracking device 500 has an inclined surface on the west surface, the fifth tracking device 500 has no inclined surface, the sixth tracking device 500 has an inclined surface on the east surface, and the seventh tracking device 500 has a south surface. The west surface is inclined, the eighth tracking device 500 is preferably provided with an inclined surface on the south surface, and the ninth tracking device 500 is provided with inclined surfaces on the south surface and the east surface.
　図１６に示す集光型太陽光発電装置は、互いに連結した追尾装置５００を複数備えており、１つの制御装置４００によって、駆動装置４５０を介して複数の追尾装置５００を同時に駆動させる。該集光型太陽光発電装置では、外部から第１、第２、第３の駆動装置４５０ａ、４５０ｂ、４５０ｃの各々に接続する第１、第２、第３の駆動軸３２０、３３０、３４０の接続部分において、軸を分割して、例えばベルトとプーリーとで接続部分を構成することにより、第１～第３の駆動装置４５０ａ～４５０ｃによる駆動力を正確に伝達可能とし、集光型太陽光発電装置において生じ得る多少の高さのバラツキや位置のズレによる影響を回避することも可能である。 The concentrating solar power generation device shown in FIG. 16 includes a plurality of tracking devices 500 connected to each other, and a plurality of tracking devices 500 are simultaneously driven by a single control device 400 via a driving device 450. In the concentrating solar power generation device, the first, second, and third drive shafts 320, 330, and 340 that are connected to the first, second, and third drive devices 450a, 450b, and 450c from the outside. By dividing the shaft at the connecting portion and forming the connecting portion with, for example, a belt and a pulley, the driving force by the first to third driving devices 450a to 450c can be accurately transmitted, and the concentrated sunlight It is also possible to avoid the influence of slight height variations and positional deviations that may occur in the power generation device.
　また、本実施形態に係る集光型太陽光発電装置には、複数の集光型太陽電池パネルの上部に、該集光型太陽電池パネルの受光側表面を清掃する清掃装置をさらに設けることができる。 Moreover, the concentrating solar power generation device according to the present embodiment may further include a cleaning device for cleaning the light receiving side surface of the concentrating solar cell panel on the upper side of the plurality of concentrating solar cell panels. it can.
　図１７は、本発明の一実施形態に係る、清掃装置を備えた集光型太陽光発電装置を構成する追尾装置の一実施例を示す概略説明図であり、図１０に示す集光型太陽光発電装置を構成する追尾装置の一実施例において、さらに清掃装置を備えた一例の図である。例えば図１７に示すように、基台２０ｃ上に支柱２０ｂを介して設けられた架台２０ａの上に配置されている追尾装置５００は、複数の追尾子１００を備えており、複数の追尾子１００各々には、集光型太陽電池パネル１０が搭載されており、これら複数の集光型太陽電池パネル１０の上部に、清掃装置６００が備えられている。 FIG. 17 is a schematic explanatory view showing an example of the tracking device constituting the concentrating solar power generation device including the cleaning device according to an embodiment of the present invention, and the concentrating solar shown in FIG. It is a figure of an example further provided with the cleaning apparatus in one Example of the tracking apparatus which comprises a photovoltaic device. For example, as shown in FIG. 17, a tracking device 500 arranged on a gantry 20 a provided on a base 20 c via a support 20 b includes a plurality of tracking units 100, and the plurality of tracking units 100. Each has a concentrating solar cell panel 10 mounted thereon, and a cleaning device 600 is provided above the plurality of concentrating solar cell panels 10.
　清掃装置６００は、一対のガイドレール６００ｂ、６００ｂと、ガイドレール６００ｂ、６００ｂに案内されて集光型太陽電池パネル１０上を移動する清掃体６００ａとを備えている。一対のガイドレール６００ｂ、６００ｂは、複数の集光型太陽電池パネル１０が配置された追尾装置５００の長手方向と平行になるように、追尾装置５００の両端部近傍に設けられている。清掃体６００ａは、例えばフレームの内側に複数のワイパー部材（図示せず）を備えており、車輪等の移動手段（図示せず）によって、ガイドレール６００ｂ、６００ｂに沿って追尾装置５００の一方の端部から、白抜き矢印の方向に、複数の集光型太陽電池パネル１０上を移動する。そして清掃体６００ａは、追尾装置５００のもう一方の端部へと到着すると、折り返して白抜き矢印の方向と逆方向に、複数の集光型太陽電池パネル１０上を移動する。この清掃体６００ａの移動の繰り返しにより、複数の集光型太陽電池パネル１０の受光側表面が清掃される。 The cleaning device 600 includes a pair of guide rails 600b and 600b, and a cleaning body 600a that moves on the concentrating solar cell panel 10 while being guided by the guide rails 600b and 600b. The pair of guide rails 600b and 600b are provided in the vicinity of both ends of the tracking device 500 so as to be parallel to the longitudinal direction of the tracking device 500 in which the plurality of concentrating solar cell panels 10 are arranged. The cleaning body 600a includes, for example, a plurality of wiper members (not shown) inside the frame, and one of the tracking devices 500 is moved along the guide rails 600b and 600b by a moving means (not shown) such as a wheel. The plurality of concentrating solar cell panels 10 are moved from the end in the direction of the outlined arrow. When the cleaning body 600a arrives at the other end of the tracking device 500, the cleaning body 600a turns and moves on the plurality of concentrating solar cell panels 10 in the direction opposite to the direction of the white arrow. By repeating the movement of the cleaning body 600a, the light receiving side surfaces of the plurality of concentrating solar cell panels 10 are cleaned.
　清掃体６００ａに備えられた複数のワイパー部材は、一般的なゴム製のものであればよく、特に限定されるものではない。このようなゴム製のワイパー部材を用いることにより、集光型太陽電池パネル１０に傷を付けることなく、その受光側表面の汚れを除去することができる。 The plurality of wiper members provided in the cleaning body 600a may be made of a general rubber and is not particularly limited. By using such a rubber wiper member, it is possible to remove contamination on the light receiving side surface without scratching the concentrating solar cell panel 10.
　複数の集光型太陽電池パネル１０上での清掃体６００ａの移動は、集光型太陽光発電装置の制御装置４００によって適宜制御することができる。なお、互いに連結した追尾装置５００を複数備え、１つの制御装置４００が、駆動装置４５０を介して、複数の追尾装置５００を同時に駆動する集光型太陽光発電装置の場合には、追尾装置５００ごとに、複数の集光型太陽電池パネル１０の上部に清掃装置６００が各々備えられるが、これら複数の清掃装置６００の各清掃体６００ａの移動も、前記１つの制御装置４００によって一斉に制御することができる。 The movement of the cleaning body 600a on the plurality of concentrating solar cell panels 10 can be appropriately controlled by the control device 400 of the concentrating solar power generation device. In the case where a plurality of tracking devices 500 connected to each other are provided and one control device 400 is a concentrating solar power generation device that simultaneously drives the plurality of tracking devices 500 via the driving device 450, the tracking device 500 is used. Each of the plurality of concentrating solar cell panels 10 is provided with a cleaning device 600, and the movement of each cleaning body 600a of the plurality of cleaning devices 600 is also controlled by the one control device 400 at a time. be able to.
　このように、清掃装置６００を備えた集光型太陽光発電装置では、集光型太陽電池パネル１０の受光側表面がより清浄な状態で維持され、該集光型太陽光発電装置は、発電効率がより高く、より高比率で直達光を遮断することができ、散乱光をさらに効率よく透過させることもできる。 Thus, in the concentrating solar power generation device provided with the cleaning device 600, the light receiving side surface of the concentrating solar cell panel 10 is maintained in a cleaner state. The efficiency is higher, the direct light can be blocked at a higher ratio, and the scattered light can be transmitted more efficiently.
　図１８は、本発明の一実施形態に係る集光型太陽光発電装置の構成例を立体的に示す図である。図１８（ａ）は、例えば図１５に示した１つの追尾装置５００（カバー５５０あり）を備えた集光型太陽光発電装置の構成例に、駆動装置４５０（第１～第３の駆動装置４５０ａ～４５０ｃ、第１～第３の駆動軸３２０～３４０）を加えた例を立体的に表している。図１８（ｂ）は、例えば図１６に示した複数の追尾装置５００（カバー５５０あり）を備えた集光型太陽光発電装置の構成例に、駆動装置４５０（第１～第３の駆動装置４５０ａ～４５０ｃ、第１～第３の駆動軸３２０～３４０）を加えた例を立体的に表している。例えばこのような構成により、本実施形態に係る集光型太陽光発電装置の実施が可能になる。なお、図１８（ａ）及び（ｂ）に示した各構成は、先に説明したとおりである。よって、その説明は繰り返さない。 FIG. 18 is a diagram three-dimensionally showing a configuration example of a concentrating solar power generation device according to an embodiment of the present invention. FIG. 18A shows, for example, a driving device 450 (first to third driving devices) in a configuration example of a concentrating solar power generation device including one tracking device 500 (with a cover 550) shown in FIG. 450a to 450c and first to third drive shafts 320 to 340) are illustrated in three dimensions. FIG. 18B shows, for example, a driving device 450 (first to third driving devices) in a configuration example of a concentrating solar power generation device including a plurality of tracking devices 500 (with a cover 550) shown in FIG. 450a to 450c and first to third drive shafts 320 to 340) are illustrated in three dimensions. For example, such a configuration makes it possible to implement the concentrating solar power generation device according to the present embodiment. In addition, each structure shown to Fig.18 (a) and (b) is as having demonstrated previously. Therefore, the description will not be repeated.
　図１９は、本発明の一実施形態に係る集光型太陽光発電装置の実装例を立体的に示す図である。図１９では、例えば図１５に示した１つの追尾装置５００（カバー５５０あり）を備えた集光型太陽光発電装置（駆動装置は図示せず）を屋根に設置し、屋根の下方から見た例を示している。 FIG. 19 is a diagram showing a three-dimensional implementation example of the concentrating solar power generation device according to the embodiment of the present invention. In FIG. 19, for example, a concentrating solar power generation device (a driving device is not shown) provided with one tracking device 500 (with a cover 550) shown in FIG. 15 is installed on the roof, and viewed from below the roof. An example is shown.
　本実施形態に係る集光型太陽光発電装置は、設置時の利便性や搬送時の可搬性に優れており、例えば図１９に示すように、バス停や公園の休憩所等の屋根に容易に設置することができる。そして、このように本実施形態に係る集光型太陽光発電装置が設置された屋根の下では、直達光が高比率で遮断され、開放感が付与される。 The concentrating solar power generation apparatus according to the present embodiment is excellent in convenience during installation and portability during transportation. For example, as shown in FIG. 19, the concentrating solar power generation apparatus can be easily installed on a roof such as a bus stop or a park rest area. Can be installed. And under the roof where the concentrating solar power generation apparatus according to this embodiment is installed in this way, direct light is blocked at a high ratio, and a feeling of opening is given.
　なお、前記バス停や公園の休憩所等の屋根には、例えば図５に示す実施例４に係る集光型太陽電池パネル１０ｄのような、高透過板１２の下面側に非集光型太陽電池２３を設置した集光型太陽電池パネルを備えた集光型太陽光発電装置を設置することが好ましい。これにより、直達光の高比率での遮断が可能なだけでなく、弱い散乱光も充分に遮断することができ、屋根の下は、より快適な状態が維持される。また、設置する集光型太陽光発電装置の大きさは、屋根の大きさに合わせて適宜調整すればよい。前述のとおり、例えば図１０に示す追尾装置５００は、１ｍ×２ｍ程度の大きさであるので、このような追尾装置５００であれば、これを１つ備えた集光型太陽光発電装置を、バス停や公園の休憩所等の屋根に容易に設置することが可能である。 In addition, the roof of the bus stop or the park rest area, for example, a non-concentrating solar cell on the lower surface side of the high transmission plate 12, such as the concentrating solar cell panel 10d according to Example 4 shown in FIG. It is preferable to install a concentrating solar power generation apparatus provided with a concentrating solar cell panel in which 23 is installed. Thereby, not only the direct light can be blocked at a high ratio but also the weak scattered light can be sufficiently blocked, and a more comfortable state is maintained under the roof. Moreover, what is necessary is just to adjust the magnitude | size of the concentrating solar power generation device to install suitably according to the magnitude | size of a roof. As described above, for example, the tracking device 500 illustrated in FIG. 10 has a size of about 1 m × 2 m. Therefore, if such a tracking device 500 is used, a concentrating solar power generation device including one of the tracking devices 500 is provided. It can be easily installed on the roofs of bus stops and park rest areas.
　さらに本実施形態に係る集光型太陽光発電装置は、前記バス停、公園の休憩所等の屋根のほかにも、例えば農業用地等にも容易に設置することができる。本実施形態に係る集光型太陽光発電装置が設置された農業用地等では、直達光が高倍率で集光され、高効率での発電が可能であると同時に、弱い散乱光を農業に利用することが可能である。また、農業用地の場合、通常、前記バス停や公園の休憩所等の屋根よりも広範囲であるので、例えば図１６に示す集光型太陽光発電装置のように、互いに連結した追尾装置５００を複数備えており、これらが同時に駆動される集光型太陽光発電装置を設置することが好ましい。 Furthermore, the concentrating solar power generation apparatus according to the present embodiment can be easily installed on, for example, agricultural land in addition to the roofs of the bus stops and park rest areas. In agricultural land or the like where the concentrating solar power generation apparatus according to this embodiment is installed, direct light is condensed at a high magnification and power generation with high efficiency is possible, and at the same time, weak scattered light is used for agriculture. Is possible. In the case of agricultural land, since it is usually wider than the roof of the bus stop or park rest area, a plurality of tracking devices 500 connected to each other, such as a concentrating solar power generation device shown in FIG. It is preferable to install a concentrating solar power generation apparatus that is provided and driven simultaneously.
　また、以上において、本実施形態に係る集光型太陽光発電装置を構成する追尾装置５００の追尾子１００について、第１のリボンＡＴ及び第２のリボンＢＴを用いた場合を説明し、ワイヤーＣＴの代わりにリボン（第３のリボン）の使用が可能であることを説明した。このような追尾子１００において、例えば図２０に示すように、リボンとして、両刃付きリボンＤＴを用いることもできる。 In the above description, the case where the first ribbon AT and the second ribbon BT are used for the tracker 100 of the tracking device 500 constituting the concentrating solar power generation device according to the present embodiment is described, and the wire CT It has been explained that a ribbon (third ribbon) can be used instead of. In such a tracker 100, as shown in FIG. 20, for example, a double-edged ribbon DT can be used as a ribbon.
　図２０は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の追尾子に用いるリボンの構成例を示す概略説明図である。図２０（ａ）は、リボンを巻き取る前の直線状態の図である。図２０（ｂ）は、リボンを巻き取った状態の図である。具体的には、両刃付きリボンＤＴは、図２０（ａ）に示すように、図中上下両側の面に複数の歯９００ａが設けられており、両刃付きリボンＤＴが巻き取られた際の外側（図では下側に相当する）における複数の歯の間隔Ｄ１は、両刃付きリボンＤＴが巻き取られた際の内側（図では上側に相当する）における複数の歯の間隔Ｄ２よりも大きい。さらに、図２０（ｂ）に示すように、両刃付きリボンＤＴが巻き取られた際の外側における複数の歯の間隔Ｄ３（隣り合う歯の上面間の距離）は、両刃付きリボンＤＴが巻き取られる前の直線状態（図２０（ａ）の状態）の内側（図では上側に相当する）における複数の歯の間隔Ｄ２と等しい。このようにすると、リボンの滑りによる撓みをより抑制することができる。 FIG. 20 is a schematic explanatory diagram illustrating a configuration example of a ribbon used for the tracker of the tracking device that configures the concentrating solar power generation device according to the embodiment of the present invention. Fig.20 (a) is a figure of the linear state before winding up a ribbon. FIG. 20B is a diagram illustrating a state where the ribbon is wound up. Specifically, as shown in FIG. 20A, the double-edged ribbon DT is provided with a plurality of teeth 900a on both upper and lower surfaces in the figure, and the outer side when the double-edged ribbon DT is wound up. The interval D1 between the plurality of teeth (corresponding to the lower side in the drawing) is larger than the interval D2 between the plurality of teeth on the inner side (corresponding to the upper side in the drawing) when the double-edged ribbon DT is wound. Furthermore, as shown in FIG. 20 (b), the distance D3 (distance between the upper surfaces of adjacent teeth) on the outside when the double-edged ribbon DT is wound is determined by the double-edged ribbon DT being wound. It is equal to a plurality of tooth intervals D2 on the inner side (corresponding to the upper side in the drawing) of the straight line state (the state of FIG. If it does in this way, the bending by the slip of a ribbon can be suppressed more.
［実験例］
＜背景＞
　集光型太陽光発電装置の集光型太陽電池パネルにおいては、非常に性能が高い太陽電池セルを用いることができる。しかし、先に記載したような追尾装置の問題により、このような集光型太陽電池パネルを備えた集光型太陽光発電装置は、未だ充分に普及していない。また、従来の追尾装置を備えた集光型太陽光発電装置では、基本的に直達光のみしか利用することができない。 [Experimental example]
<Background>
In the concentrating solar cell panel of the concentrating solar power generation device, a solar cell having extremely high performance can be used. However, due to the problem of the tracking device as described above, the concentrating solar power generation device provided with such a concentrating solar cell panel has not yet been widely spread. Moreover, in the concentrating solar power generation device provided with the conventional tracking device, basically only direct light can be used.
　本発明の一実施形態に係る集光型太陽光発電装置を構成する集光型太陽電池パネルでは、太陽からの直達光のみが集光され、太陽電池セルに入射し、一方、散乱光は、高透過板を透過するか、又は太陽電池セル同士の間の空間を通過する。そして、該集光型太陽光発電装置に備えられた追尾装置は、該散乱光を透過する材料でできているので、直達光を高倍率で集光して高効率で発電し、高比率で遮断することが可能であると同時に、散乱光を効率よく透過させて多目的に利用することも可能で、開放感を得ることができる。 In the concentrating solar cell panel constituting the concentrating solar power generation device according to one embodiment of the present invention, only the direct light from the sun is collected and incident on the solar cell, while the scattered light is It passes through a highly transmissive plate or passes through a space between solar cells. Since the tracking device provided in the concentrating solar power generation device is made of a material that transmits the scattered light, the direct light is condensed at a high magnification to generate power with high efficiency, and at a high ratio. At the same time it can be blocked, it is also possible to transmit scattered light efficiently and use it for multiple purposes, and an open feeling can be obtained.
＜目的＞
　本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置が優れた光透過性を有することを確認するために、本実験例を実施した。 <Purpose>
In order to confirm that the tracking device constituting the concentrating solar power generation device according to one embodiment of the present invention has excellent light transmittance, the present experimental example was performed.
＜方法及び結果＞
　まず、図２１に示す追尾装置を準備した。図２１は、本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置の概略図であり、（ａ）は追尾装置の概略上面図、（ｂ）は追尾装置の長手方向の概略側面図、（ｃ）は追尾装置の短手方向の概略側面図である。該追尾装置は、基本的に図１０に示す追尾装置と同じ構成の透明追尾装置であり、集光型太陽電池パネル各々を搭載することができる６個の追尾子を備えている。底面サイズは３８０ｍｍ×５８０ｍｍで、１０ｍｍ×３０ｍｍの柱が１２本連立っている。構造部材は、太陽光（照射光）からの散乱光を透過する透明なアクリル系樹脂製であり、一部の部材は、高精細３Ｄプリンタ　アジリスタ（Ａｇｉｌｉｓｔａ－３２００、（株）キーエンス製）を用いて製造した成型品である。 <Method and results>
First, a tracking device shown in FIG. 21 was prepared. FIG. 21 is a schematic view of a tracking device that constitutes a concentrating solar power generation device according to an embodiment of the present invention, where (a) is a schematic top view of the tracking device, and (b) is a longitudinal direction of the tracking device. (C) is a schematic side view of the tracking device in the short direction. The tracking device is basically a transparent tracking device having the same configuration as the tracking device shown in FIG. 10, and includes six trackers on which each of the concentrating solar cell panels can be mounted. The bottom size is 380 mm × 580 mm, and 12 columns of 10 mm × 30 mm are connected. The structural members are made of a transparent acrylic resin that transmits scattered light from sunlight (irradiated light), and some of the members use a high-definition 3D printer Agilista (Agilista-3200, manufactured by Keyence Corporation). It is a molded product manufactured by
　次に、太陽電池モジュールを準備し、該太陽電池モジュールの上に前記透明追尾装置を配置した。一方、該太陽電池モジュールの上に遮光物を配置しない場合、及び、遮光物として前記追尾装置と同面積のベニヤ板（厚さ２．５ｍｍ）を該太陽電池モジュールの上に配置した場合を比較対象とした。図２２は、遮光物を配置していない太陽電池モジュールの概略斜視図、図２３は、前記透明追尾装置を配置した太陽電池モジュールの概略斜視図、及び図２４は、遮光物を配置した太陽電池モジュールの概略斜視図である。 Next, a solar cell module was prepared, and the transparent tracking device was arranged on the solar cell module. On the other hand, a case where a light shielding object is not disposed on the solar cell module and a case where a veneer plate (thickness 2.5 mm) having the same area as the tracking device is disposed on the solar cell module as a light shielding object are to be compared. It was. FIG. 22 is a schematic perspective view of a solar cell module in which no light shielding object is disposed, FIG. 23 is a schematic perspective view of a solar cell module in which the transparent tracking device is disposed, and FIG. 24 is a solar cell in which a light shielding object is disposed. It is a schematic perspective view of a module.
　前記各太陽電池モジュールを用いてその性能を測定し、出力特性を表すＩＶカーブを求めた。その結果を表１及び図２５に示す。測定に用いた装置、条件等は以下のとおりである。また、各略語は以下を示す。
Ｐｍ：最適動作点での出力（Ｗ）
Ｖｐｍ：最適動作点での電圧（Ｖ）
Ｉｐｍ：最適動作点での電流（Ｉ）
Ｖｏｃ：開放電圧（Ｖ）
Ｉｓｃ：短絡電流（Ａ）
Ｆ．Ｆ．：曲線因子 The performance was measured using each of the solar cell modules, and an IV curve representing output characteristics was obtained. The results are shown in Table 1 and FIG. The equipment and conditions used for the measurement are as follows. Moreover, each abbreviation shows the following.
Pm: Output at the optimum operating point (W)
Vpm: Voltage at the optimum operating point (V)
Ipm: current at the optimum operating point (I)
Voc: Open circuit voltage (V)
Isc: Short circuit current (A)
F. F. : Curve factor
（測定日）
２０１７年１０月３日
（太陽電池モジュール）
製造元：（株）ビームテック
Ｍｏｄｅｌ：ＳＰ１００
Ｐｍ：１００Ｗ
Ｖｐｍ：１８．５Ｖ
Ｉｐｍ：５．４１Ａ
Ｖｏｃ：２２．４Ｖ
Ｉｓｃ：５．９Ａ
Ｄｉｍｅｎｔｉｏｎ：１２１０＊５４０＊３５
（ソーラーシミュレーター）
製造元：岩崎電気（株）
形式：ＥＳＣ０４３６－Ｈ１３４
（測定条件）
日射強度：１０６５Ｗ／ｍ２
温度：設定値２０℃、測定値２０．４℃
湿度：設定値２０％、測定値２４．５％
（ＩＶカーブトレーサー）
製造元：英弘精機（株）
Ｍｏｄｅｌ：ＥＰ－１６０ (measuring date)
October 3, 2017 (solar cell module)
Manufacturer: Beamtec Model: SP100
Pm: 100W
Vpm: 18.5V
Ipm: 5.41A
Voc: 22.4V
Isc: 5.9A
Dimension: 1210 * 540 * 35
(Solar simulator)
Manufacturer: Iwasaki Electric Co., Ltd.
Format: ESC0436-H134
(Measurement condition)
Solar radiation intensity: 1065 W / m 2
Temperature: set value 20 ° C, measured value 20.4 ° C
Humidity: Set value 20%, measured value 24.5%
(IV curve tracer)
Manufacturer: Eihiro Seiki Co., Ltd.
Model: EP-160
Figure JPOXMLDOC01-appb-T000001
Figure JPOXMLDOC01-appb-T000001
　図２５は、前記各太陽電池モジュールを用いて行った、太陽光透過／遮光実験の結果を示すＩＶカーブである。実線が透明追尾装置ありの場合の結果（透明追尾装置遮光ＩＶカーブ）、長破線が遮光物なしの場合の結果（遮光なしＩＶカーブ）、短破線が遮光物ありの場合の結果（全遮光ＩＶカーブ）である。 FIG. 25 is an IV curve showing the results of a sunlight transmission / light-shielding experiment performed using each of the solar cell modules. Solid line results with transparent tracking device (transparent tracking device shading IV curve), long broken line results without shading (no shading IV curve), short dashed line results with shading (all shading IV Curve).
　ここで、Ｉｓｃは受光光量によって決定される値である。すなわち、遮光物を配置していない遮光なしの太陽電池モジュールのＩｓｃに対する、透明追尾装置又は遮光物を配置したことによる遮光ありの太陽電池モジュールのＩｓｃの比率が、受光光量の割合になる。ただし、太陽電池モジュールにおいては、複数の太陽電池が直列接続されている。このように直列接続された複数の太陽電池のうち、律速となるのは最も影がかかる太陽電池である。すなわち、実質示されているのは、影により光量が最も減少した太陽電池における受光光量の割合である、という点に注意しなければならない。このため、遮光物を配置した太陽電池モジュールでは、複数の太陽電池のうち、影がかかっているのは一部分であるにも関わらず、Ｉｓｃが０Ａに近い値となっている。 Here, Isc is a value determined by the amount of received light. In other words, the ratio of the amount of received light is the ratio of Isc of the solar cell module with light shielding by arranging the transparent tracking device or the light shielding material to Isc of the solar cell module without light shielding without the light shielding. However, in the solar cell module, a plurality of solar cells are connected in series. Of the plurality of solar cells connected in series in this way, the solar cell with the most shadow is the rate limiting factor. That is, it should be noted that what is substantially shown is the ratio of the amount of received light in the solar cell in which the amount of light has been reduced most by the shadow. For this reason, in the solar cell module in which the light shielding member is arranged, Isc is a value close to 0 A, although a part of the plurality of solar cells is shaded.
　なお、ソーラーシミュレーターによる照射光は、すべてが直達光ではなく、直達光と共に散乱光も含んでいたが、両者の比率は特定できなかった。 Note that the light irradiated by the solar simulator was not all direct light, but also included scattered light as well as direct light, but the ratio of the two could not be specified.
　表１及び図２５に示すとおり、遮光物を配置していない太陽電池モジュールのＩｓｃ（５．１６Ａ）に対する遮光物を配置した太陽電池モジュールのＩｓｃ（０．２５Ａ）の比率、すなわち遮光物を配置した太陽電池モジュールの受光光量の割合は、約０．０５であった。これに対して、遮光物を配置していない太陽電池モジュールのＩｓｃ（５．１６Ａ）に対する透明追尾装置を配置した太陽電池モジュールのＩｓｃ（２．３４Ａ）の比率、すなわち透明追尾装置を配置した太陽電池モジュールの受光光量の割合は、約０．４５であった。このように、太陽電池モジュールの上にベニヤ板のような遮光物を配置して完全に遮光してしまうと、当然のことながら、受光光量の割合はほぼゼロとなった。しかし、本発明の一実施形態に係る集光型太陽光発電装置を構成する透明追尾装置を太陽電池モジュールの上に配置しても、受光光量の割合は５０％に近い高い値であった。なお、前記のとおり複数の太陽電池には律速があり、Ｉｓｃの測定値は発電に寄与した太陽電池に基づくものであるので、実際のＩｓｃは測定値よりも大きい。よって、透明追尾装置を配置した太陽電池モジュールの実際の受光光量の割合は、０．４５よりも大きく、５０％を超える高い値である。 As shown in Table 1 and FIG. 25, the ratio of the Isc (0.25A) of the solar cell module in which the light shielding material is disposed to the Isc (5.16A) of the solar cell module in which the light shielding material is not disposed, that is, the light shielding material is disposed. The ratio of the received light amount of the solar cell module was about 0.05. On the other hand, the ratio of the Isc (2.34A) of the solar cell module in which the transparent tracking device is arranged to the Isc (5.16A) of the solar cell module in which the light shielding material is not arranged, that is, the sun in which the transparent tracking device is arranged. The ratio of the received light amount of the battery module was about 0.45. As described above, when a light shielding object such as a veneer plate is arranged on the solar cell module to completely shield the light, the ratio of the amount of received light is almost zero. However, even when the transparent tracking device constituting the concentrating solar power generation device according to one embodiment of the present invention is arranged on the solar cell module, the ratio of the received light amount is a high value close to 50%. As described above, the plurality of solar cells have a rate-determining rate, and the measured value of Isc is based on the solar cell that contributes to power generation. Therefore, the actual Isc is larger than the measured value. Therefore, the ratio of the actual received light amount of the solar cell module in which the transparent tracking device is arranged is a high value that is larger than 0.45 and exceeds 50%.
＜結論＞
　本発明の一実施形態に係る集光型太陽光発電装置を構成する追尾装置は、優れた光透過性を有しており、集光型太陽電池パネルが配置されていても、太陽光を透過させることができることが、本実験例において確認された。 <Conclusion>
The tracking device constituting the concentrating solar power generation device according to one embodiment of the present invention has excellent light transmittance, and transmits sunlight even if a concentrating solar cell panel is disposed. It was confirmed in the present experimental example that this can be achieved.
　以上、本発明の一実施形態に係る集光型太陽光発電装置について説明したが、本発明は本実施形態に限定されるものではなく、発明の範囲内で種々の形態の実施が可能である。 As mentioned above, although the concentrating solar power generation device which concerns on one Embodiment of this invention was demonstrated, this invention is not limited to this embodiment, Implementation of various forms is possible within the scope of the invention. .
　本発明に係る集光型太陽光発電装置は、比較的小規模な設置対象用の太陽光発電装置として好適である。 The concentrating solar power generation device according to the present invention is suitable as a solar power generation device for a relatively small installation target.
１０　　集光型太陽電池パネル
１１　　集光器
１２　　高透過板
１３　　太陽電池セル
３０　　セルパッケージ
３１　　受光ガイド
３１ａ　反射面
１００　追尾子
１１０　保持部材
４００　制御装置
４５０　駆動装置
５００　追尾装置

  DESCRIPTION OF SYMBOLS 10 Concentrating type solar cell panel 11 Concentrator 12 Highly transmissive plate 13 Solar cell 30 Cell package 31 Light receiving guide 31a Reflecting surface 100 Tracking element 110 Holding member 400 Control device 450 Driving device 500 Tracking device

Claims (9)

  1. 　アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルと、
    　前記複数の集光型太陽電池パネルを駆動する駆動装置と、
    　前記複数の集光型太陽電池パネルが予め設定された太陽軌道を追尾するように前記駆動装置の駆動量を制御する制御装置と、
    　追尾装置と
    を含む集光型太陽光発電装置であって、
    　前記集光型太陽電池パネルの各々は、
    　　太陽光を集光する集光器と、
    　　前記集光器によって集光された前記太陽光を受光して該太陽光の少なくとも散乱光成分を透過する高透過板と、
    　　前記集光器によって集光された前記太陽光を受光して発電する複数の太陽電池セルと、
    　　前記高透過板の表面の一部に設けられ、前記太陽電池セルに電気的に接続可能な回路と
    を備え、
    　前記太陽電池セルの各々は、前記高透過板の表面上に分散的に配置され、
    　前記太陽電池セルと前記回路とは、前記集光器と前記高透過板との間に封止され、
    　前記太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であり、
    　前記高透過板の受光面積は、太陽光総入射面積の８０％以上であり、
    　前記追尾装置は、
    　　前記高透過板を透過した散乱光成分を透過する材料からなり、
    　　前記複数の集光型太陽電池パネルの各々を搭載する複数の追尾子を備え、
    　前記複数の追尾子の各々は、
    　　前記集光型太陽電池パネルを搭載する保持部材と、
    　　前記保持部材に連結する追尾機構と
    を備え、
    　前記複数の集光型太陽電池パネルは、前記複数の追尾子を介して、１つの前記制御装置により一元制御される
    ことを特徴とする、集光型太陽光発電装置。     A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power;
    A driving device for driving the plurality of concentrating solar cell panels;
    A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit,
    A concentrating solar power generation device including a tracking device,
    Each of the concentrating solar cell panels is
    A concentrator that collects sunlight;
    A highly transmissive plate that receives the sunlight collected by the condenser and transmits at least a scattered light component of the sunlight;
    A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and
    A circuit provided on a part of the surface of the highly transmissive plate and electrically connectable to the solar battery cell;
    Each of the solar cells is dispersedly disposed on the surface of the highly transmissive plate,
    The solar cell and the circuit are sealed between the collector and the high transmission plate,
    The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area,
    The light receiving area of the high transmission plate is 80% or more of the total sunlight incident area,
    The tracking device is
    It is made of a material that transmits the scattered light component that has passed through the high transmission plate,
    A plurality of trackers each mounting the plurality of concentrating solar cell panels;
    Each of the plurality of trackers is
    A holding member for mounting the concentrating solar cell panel;
    A tracking mechanism connected to the holding member,
    The concentrating solar power generation apparatus, wherein the plurality of concentrating solar cell panels are centrally controlled by a single control device via the plurality of tracking elements.
  2. 　アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルと、
    　前記複数の集光型太陽電池パネルを駆動する駆動装置と、
    　前記複数の集光型太陽電池パネルが予め設定された太陽軌道を追尾するように前記駆動装置の駆動量を制御する制御装置と、
    　追尾装置と
    を含む集光型太陽光発電装置であって、
    　前記集光型太陽電池パネルの各々は、
    　　太陽光を集光する集光器と、
    　　前記集光器によって集光された前記太陽光を受光して該太陽光の少なくとも散乱光成分を透過する高透過板と、
    　　前記集光器によって集光された前記太陽光を受光して発電する複数の太陽電池セルと、
    　　前記高透過板の表面の一部に設けられ、前記太陽電池セルに電気的に接続可能な回路と
    を備え、
    　前記太陽電池セルの各々は、前記高透過板の受光面とは反対側の面に分散的に配置され、
    　前記太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であり、
    　前記高透過板の受光面積は、太陽光総入射面積の８０％以上であり、
    　前記集光器によって集光されかつ前記高透過板を透過した太陽光を反射させ、前記太陽電池セルの受光面へ案内する反射面を有する複数の受光ガイドをさらに備え、
    　前記受光ガイドの各々と前記太陽電池セルの各々とが予め一体化され、複数のセルパッケージが構成され、
    　前記複数のセルパッケージは、封止材によって前記高透過板の前記反対側の面上に分散的に封止され、
    　前記追尾装置は、
    　　前記高透過板を透過した散乱光成分を透過する材料からなり、
    　　前記複数の集光型太陽電池パネルの各々を搭載する複数の追尾子を備え、
    　前記複数の追尾子の各々は、
    　　前記集光型太陽電池パネルを搭載する保持部材と、
    　　前記保持部材に連結する追尾機構と
    を備え、
    　前記複数の集光型太陽電池パネルは、前記複数の追尾子を介して、１つの前記制御装置により一元制御される
    ことを特徴とする、集光型太陽光発電装置。     A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power;
    A driving device for driving the plurality of concentrating solar cell panels;
    A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit,
    A concentrating solar power generation device including a tracking device,
    Each of the concentrating solar cell panels is
    A concentrator that collects sunlight;
    A highly transmissive plate that receives the sunlight collected by the condenser and transmits at least a scattered light component of the sunlight;
    A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and
    A circuit provided on a part of the surface of the highly transmissive plate and electrically connectable to the solar battery cell;
    Each of the solar cells is dispersedly disposed on the surface opposite to the light receiving surface of the high transmittance plate,
    The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area,
    The light receiving area of the high transmission plate is 80% or more of the total sunlight incident area,
    A plurality of light receiving guides having a reflecting surface for reflecting the sunlight collected by the collector and transmitted through the highly transmissive plate and guiding it to the light receiving surface of the solar battery cell;
    Each of the light receiving guides and each of the solar battery cells are integrated in advance to form a plurality of cell packages,
    The plurality of cell packages are dispersedly sealed on the opposite surface of the highly transmissive plate by a sealing material,
    The tracking device is
    It is made of a material that transmits the scattered light component that has passed through the high transmission plate,
    A plurality of trackers each mounting the plurality of concentrating solar cell panels;
    Each of the plurality of trackers is
    A holding member for mounting the concentrating solar cell panel;
    A tracking mechanism connected to the holding member,
    The concentrating solar power generation apparatus, wherein the plurality of concentrating solar cell panels are centrally controlled by a single control device via the plurality of tracking elements.
  3. 　アレイ状に配置され、太陽光を電力に変換する複数の集光型太陽電池パネルと、
    　前記複数の集光型太陽電池パネルを駆動する駆動装置と、
    　前記複数の集光型太陽電池パネルが予め設定された太陽軌道を追尾するように前記駆動装置の駆動量を制御する制御装置と、
    　追尾装置と
    を含む集光型太陽光発電装置であって、
    　前記集光型太陽電池パネルの各々は、
    　　太陽光を集光する集光器と、
    　　前記集光器によって集光された前記太陽光を受光して発電する複数の太陽電池セルと、
    　　前記太陽電池セルに電気的に接続可能な回路と
    を備え、
    　前記複数の太陽電池セルは、前記集光型太陽電池パネルにおいて、各々の間に空間を設けて分散的に配置され、
    　前記太陽電池セルの全受光面積は、太陽光総入射面積の１０％以下であり、
    　前記追尾装置は、
    　　前記太陽光からの散乱光成分を透過する材料からなり、
    　　前記複数の集光型太陽電池パネルの各々を搭載する複数の追尾子を備え、
    　前記複数の追尾子の各々は、
    　　前記集光型太陽電池パネルを搭載する保持部材と、
    　　前記保持部材に連結する追尾機構と
    を備え、
    　前記複数の集光型太陽電池パネルは、前記複数の追尾子を介して、１つの前記制御装置により一元制御される
    ことを特徴とする、集光型太陽光発電装置。     A plurality of concentrating solar panels arranged in an array and converting sunlight into electric power;
    A driving device for driving the plurality of concentrating solar cell panels;
    A control device for controlling the drive amount of the drive device so that the plurality of concentrating solar cell panels track a preset solar orbit,
    A concentrating solar power generation device including a tracking device,
    Each of the concentrating solar cell panels is
    A concentrator that collects sunlight;
    A plurality of solar cells that receive the sunlight collected by the condenser and generate power; and
    A circuit electrically connectable to the solar cell,
    The plurality of solar cells are arranged in a distributed manner in the concentrating solar cell panel, with spaces provided between them.
    The total light receiving area of the solar battery cell is 10% or less of the total sunlight incident area,
    The tracking device is
    Made of a material that transmits the scattered light component from the sunlight,
    A plurality of trackers each mounting the plurality of concentrating solar cell panels;
    Each of the plurality of trackers is
    A holding member for mounting the concentrating solar cell panel;
    A tracking mechanism connected to the holding member,
    The concentrating solar power generation apparatus, wherein the plurality of concentrating solar cell panels are centrally controlled by a single control device via the plurality of tracking elements.
  4. 　前記複数の追尾子の各々は、前記駆動装置の前記制御された駆動量に基づいて、前記保持部材における少なくとも３点を駆動することにより、前記集光型太陽電池パネルが予め設定された太陽軌道を追尾する、
    請求項１～３のいずれか１つに記載の集光型太陽光発電装置。     Each of the plurality of trackers drives at least three points on the holding member based on the controlled driving amount of the driving device, so that the concentrating solar cell panel is set in advance. Tracking
    The concentrating solar power generation device according to any one of claims 1 to 3.
  5. 　前記駆動装置は、前記保持部材における前記少なくとも３点をそれぞれ駆動する少なくとも３つの駆動部からなる、
    請求項４に記載の集光型太陽光発電装置。     The driving device includes at least three driving units that respectively drive the at least three points in the holding member.
    The concentrating solar power generation device according to claim 4.
  6. 　前記追尾機構は、
    　　前記保持部材を支える支柱部と、
    　　前記支柱部を支える土台部と
    を備え、
    　前記保持部材と前記支柱部とを連結するリングがさらに設けられている、
    請求項１～３のいずれか１つに記載の集光型太陽光発電装置。     The tracking mechanism is
    A support column supporting the holding member;
    A base portion that supports the support portion,
    A ring connecting the holding member and the support column is further provided;
    The concentrating solar power generation device according to any one of claims 1 to 3.
  7. 　前記追尾装置を搭載する架台と、
    　前記架台の上に、前記追尾装置の全体を覆うように設けられた透明部材からなる矩形状のケースと
    をさらに備えており、
    　前記ケースの少なくとも一面が傾斜している、
    請求項１～３のいずれか１つに記載の集光型太陽光発電装置。     A gantry on which the tracking device is mounted;
    On the gantry, further comprises a rectangular case made of a transparent member provided to cover the entire tracking device,
    At least one surface of the case is inclined,
    The concentrating solar power generation device according to any one of claims 1 to 3.
  8. 　前記複数の集光型太陽電池パネルの上部に、該集光型太陽電池パネルの各々の受光側表面を清掃する清掃装置がさらに設けられている、
    請求項１～３のいずれか１つに記載の集光型太陽光発電装置。     A cleaning device for cleaning the light receiving side surface of each of the concentrating solar cell panels is further provided above the plurality of concentrating solar cell panels.
    The concentrating solar power generation device according to any one of claims 1 to 3.
  9. 　互いに連結した前記追尾装置を複数備え、
    　前記複数の追尾装置は、前記駆動装置を介して、１つの前記制御装置により同時に駆動される、
    請求項１～３のいずれか１つに記載の集光型太陽光発電装置。     A plurality of the tracking devices connected to each other;
    The plurality of tracking devices are simultaneously driven by the one control device via the driving device.
    The concentrating solar power generation device according to any one of claims 1 to 3.
PCT/JP2017/038771 2016-10-26 2017-10-26 Concentrated solar power generation device WO2018079677A1 (en)

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