WO2018008322A1 - 集光型太陽光発電モジュール、集光型太陽光発電装置及び水素精製システム - Google Patents
集光型太陽光発電モジュール、集光型太陽光発電装置及び水素精製システム Download PDFInfo
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- WO2018008322A1 WO2018008322A1 PCT/JP2017/021063 JP2017021063W WO2018008322A1 WO 2018008322 A1 WO2018008322 A1 WO 2018008322A1 JP 2017021063 W JP2017021063 W JP 2017021063W WO 2018008322 A1 WO2018008322 A1 WO 2018008322A1
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- Prior art keywords
- power generation
- solar power
- concentrating solar
- generation module
- substrate
- Prior art date
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- 238000010248 power generation Methods 0.000 title claims abstract description 200
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims description 52
- 239000001257 hydrogen Substances 0.000 title claims description 52
- 229910052739 hydrogen Inorganic materials 0.000 title claims description 52
- 238000000746 purification Methods 0.000 title claims description 37
- 239000000758 substrate Substances 0.000 claims abstract description 71
- 239000004020 conductor Substances 0.000 claims description 35
- 230000002265 prevention Effects 0.000 claims description 17
- 239000010410 layer Substances 0.000 description 121
- 230000003287 optical effect Effects 0.000 description 14
- 238000010586 diagram Methods 0.000 description 10
- 238000012986 modification Methods 0.000 description 10
- 230000004048 modification Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 239000012790 adhesive layer Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000020169 heat generation Effects 0.000 description 3
- 239000010949 copper Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
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Classifications
-
- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
- H01L31/0508—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module the interconnection means having a particular shape
-
- 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of 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
- H01L31/05—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells
- H01L31/0504—Electrical interconnection means between PV cells inside the PV module, e.g. series connection of PV cells specially adapted for series or parallel connection of solar cells in a module
-
- 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
- H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
-
- 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
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
-
- 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
- H02S40/20—Optical components
- H02S40/22—Light-reflecting 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
- H02S99/00—Subject matter not provided for in other groups of this subclass
-
- 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 disclosure relates to a concentrating solar power generation module, a concentrating solar power generation device, and a hydrogen purification system.
- This application claims priority based on Japanese Patent Application No. 2016-134836, which is a Japanese patent application filed on July 7, 2016. All the descriptions described in the Japanese patent application are incorporated herein by reference.
- a concentrating solar power generation module described in International Publication No. 2016/006573 is disposed on a housing, an FPC (Flexible Printed Circuit) substrate disposed on the bottom surface of the housing, and the FPC substrate. And a plurality of concentrating solar power generation elements.
- the FPC boards are connected in series, and the plurality of concentrating solar power generation elements on the FPC board are connected in series.
- JP 2012-94684 A discloses a hydrogen purification system including a concentrating solar power generation device and a hydrogen purification device.
- the hydrogen purification device electrolyzes water with the power supplied from the concentrating solar power generation device to generate hydrogen.
- a concentrating solar power generation module includes a housing, a substrate having a plurality of wiring layers arranged on the bottom surface of the housing and stacked, and disposed on the substrate. And a concentrating solar power generation element connected to the wiring layer.
- the concentrating solar power generation elements connected to different wiring layers are connected in parallel to each other.
- FIG. 1 is a perspective view of a concentrating solar power generation device 1 according to an embodiment.
- FIG. 2 is a perspective view of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 3 is a top view of the concentrating solar power generation module 2 according to the embodiment.
- 4 is a cross-sectional view taken along the line IV-IV in FIG.
- FIG. 5A is an enlarged top view of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 5B is an enlarged top view of the second layer from the top of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 5C is an enlarged top view of the third layer from the top of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 5D is an enlarged top view of the fourth layer from the top of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- 6 is a cross-sectional view taken along VI-VI in FIG. 5A.
- FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 5A.
- FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 5A.
- FIG. 9 is a schematic diagram illustrating a connection mode of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 10 is a schematic diagram illustrating a connection mode of the concentrating solar power generation module 2 according to the first modification of the embodiment.
- FIG. 11 is an enlarged top view of the substrate 22 of the concentrating solar power generation module 2 according to the second modification of the embodiment.
- FIG. 12 is a schematic diagram of the hydrogen purification system according to the embodiment.
- FIG. 13 is a schematic diagram of the hydrogen purification device 5 in the hydrogen purification system according to the embodiment.
- FIG. 14 is a schematic diagram illustrating a connection mode between the hydrogen purification device 5 and the concentrating solar power generation device 1 in the hydrogen purification system according to the embodiment.
- the voltage output from the concentrating solar power generation module is generally 50 V or higher.
- a voltage of about 1.7 V is sufficient. If a voltage higher than this is supplied, a loss occurs. Thus, it may be preferable that the voltage output from the concentrating solar power generation device is low.
- a concentrating solar power generation module is disposed on a housing, a substrate having a plurality of wiring layers disposed on the bottom surface of the housing and stacked, And a concentrating solar power generation element connected to the wiring layer.
- the concentrating solar power generation elements connected to different wiring layers are connected in parallel to each other.
- the concentrating solar power generation module of (1) it is possible to reduce the output voltage while suppressing an increase in wiring resistance without limiting the degree of freedom in wiring design.
- the concentrating solar power generation module of (1) further includes a backflow prevention unit connected in series to the concentrating solar power generation device, and the backflow prevention unit prevents backflow from the concentrating solar power generation device.
- the current in the direction toward the part may be passed, and the current in the direction from the backflow prevention part toward the concentrating solar power generation element may be blocked.
- the concentrating solar power generation elements connected to the same wiring layer may be connected to each other in series.
- the output voltage can be adjusted, so that the output voltage is optimized according to the required specifications of the equipment connected to the concentrating solar power generation apparatus. It becomes possible.
- the substrate may have an end through-hole conductor disposed at the end and connected to the plurality of wiring layers.
- the problem of heat generation due to a large current flowing can be suppressed by increasing the cross-sectional area of the wiring at a portion where a plurality of wiring layers are connected to each other. It becomes possible.
- the concentrating solar power generation module of (1) to (4) there are a plurality of substrates, and the plurality of substrates may be connected in parallel to each other.
- concentrating solar power generation module of (5) it is possible to reduce the output voltage even when more concentrating solar power generation elements are mounted.
- a concentrating solar power generation device includes the concentrating solar power generation modules of (1) to (5). According to the concentrating solar power generation device of (6), the same effects as (1) to (5) are obtained.
- a hydrogen purification system includes the concentrating solar power generation device of (6) and a plurality of hydrogen purifying devices connected in series to the concentrating solar power generation device, and a concentrating type.
- the ratio of the voltage drop in the plurality of hydrogen purification apparatuses to the output voltage of the photovoltaic power generation apparatus may be 80% or more.
- FIG. 1 is a perspective view of a concentrating solar power generation device 1 according to an embodiment.
- the concentrating solar power generation device 1 includes a concentrating solar power generation module 2.
- the concentrating solar power generation apparatus 1 includes a frame 3, a gantry 4, a solar compass (not shown), a control unit (not shown), and a drive unit (not shown). ing.
- the concentrating solar power generation module 2 is disposed on the frame 3.
- the number of concentrating solar power generation modules 2 is preferably plural.
- the concentrating solar power generation modules 2 are preferably arranged in a matrix on the frame. Details of the configuration of the concentrating solar power generation module will be described later.
- the frame 3 is mounted on the gantry 4 via a drive unit.
- the drive unit includes a drive source such as a motor and changes the direction in which the frame 3 faces.
- the solar azimuth meter is attached to the frame 3, for example.
- the solar azimuth sensor detects the sun direction and outputs a signal indicating the sun direction to the control unit.
- a control part controls a drive part so that the light-receiving surface of concentrating photovoltaic power generation module 2 may oppose the direction of the sun based on the signal from a solar direction meter.
- FIG. 2 is a perspective view of the concentrating solar power generation module 2 according to the embodiment.
- the concentrating solar power generation module 2 according to the embodiment has a housing 21.
- the casing 21 includes a frame body 21a, a bottom plate 21b (see FIG. 3), and a top plate 21c.
- the frame body 21 a constitutes the side wall of the concentrating solar power generation module 2.
- the bottom plate 21b constitutes the bottom surface of the concentrating solar power generation module.
- the top plate 21 c constitutes the top surface of the concentrating solar power generation module 2.
- FIG. 3 is a top view of the concentrating solar power generation module 2 according to the embodiment.
- the top plate 21c is not shown.
- the concentrating solar power generation module 2 includes a substrate 22 and a concentrating solar power generation element 23.
- the substrate 22 is disposed on the bottom surface of the housing 21. That is, the substrate 22 is disposed on the bottom plate 21b.
- a plurality of substrates 22 may be arranged.
- the plurality of substrates 22 are arranged side by side in a direction perpendicular to the longitudinal direction of the substrate 22.
- the plurality of substrates 22 are connected in parallel.
- the substrate 22 is preferably an FPC substrate.
- a plurality of concentrating solar power generation elements 23 are provided on the substrate 22.
- the concentrating solar power generation elements 23 are arranged on the substrate 22 along the longitudinal direction of the substrate 22.
- the plurality of concentrating solar power generation elements 23 on the substrate 22 are connected in parallel.
- FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG.
- the concentrating solar power generation module 2 has an optical system 24.
- the optical system 24 includes a primary optical system 24a and a secondary optical system 24b.
- the primary optical system 24a is provided on the top plate 21c.
- the secondary optical system 24 b is provided on the concentrating solar power generation element 23.
- the primary optical system 24a collects sunlight on the secondary optical system.
- the primary optical system 24a is, for example, a Fresnel lens.
- the secondary optical system 24 b transmits the sunlight collected by the primary optical system 24 a onto the concentrating solar power generation element 23.
- the secondary optical system 24b is, for example, a spherical lens.
- FIG. 5A is an enlarged top view of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 5B is an enlarged top view of the second layer from the top of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 5C is an enlarged top view of the third layer from the top of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- FIG. 5D is an enlarged top view of the fourth layer from the top of the substrate 22 of the concentrating solar power generation module 2 according to the embodiment.
- 5A to 5D top views of the respective layers of the substrate 22 are shown. 5A to 5D, in order to clarify the structure of the wiring layer 22a, the illustration of the insulating layer 22b and the adhesive layer 22c overlying the wiring layer 22a is omitted.
- FIG. 6 is a cross-sectional view taken along VI-VI in FIG. 5A.
- FIG. 7 is a cross-sectional view taken along the line VII-VII in FIG. 5A.
- FIG. 8 is a sectional view taken along line VIII-VIII in FIG. 5A.
- the substrate 22 includes a wiring layer 22a, an insulating layer 22b, an adhesive layer 22c, a land portion 22d, a through-hole conductor 22e, and an end. Part through-hole conductor 22f.
- a material having good thermal conductivity and electrical conductivity such as copper (Cu) is used.
- a material having good insulating properties such as polyimide is used.
- an epoxy resin adhesive is used for the adhesive layer 22c.
- the substrate 22 has a plurality of wiring layers 22a.
- the number of wiring layers 22 a is equal to the number of concentrating solar power generation elements 23 arranged on the substrate 22, that is, the concentration of concentrating solar power generation elements 23 arranged on the substrate 22.
- the number of these four concentrating solar power generation elements 23 is divided into a concentrating solar power generation element 23a, a concentrating solar power generation element 23b, a concentrating solar power generation element 23c, and a concentrating type, respectively.
- the number of the wiring layers 22a is 4 (the wiring layers 22a are referred to as the wiring layer 22aa, the wiring layer 22ab, the wiring layer 22ac, and the wiring layer 22ad, respectively). explain.
- the wiring layer 22aa is the wiring layer 22a that is located closest to the surface side of the substrate 22
- the wiring layer 22ab is the wiring layer 22a that is secondly positioned on the surface side of the substrate 22
- the wiring layer 22ac is Third
- the wiring layer 22 a is located on the front surface side of the substrate 22
- the wiring layer 22 ad is the wiring layer 22 a located closest to the back surface side of the substrate 22.
- the wiring layer 22aa, the wiring layer 22ab, the wiring layer 22ac, and the wiring layer 22ad are stacked in the substrate 22.
- An insulating layer 22b is provided between the wiring layers 22a and on the front and back surfaces of the substrate 22.
- An adhesive layer 22c is provided between the insulating layer 22b and the wiring layer 22a.
- a plurality of land portions 22d are provided in the layer of the substrate 22 where the wiring layer 22aa is provided. That is, in the layer provided with the wiring layer 22aa in the substrate 22, the land portion 22da, the land portion 22db, the land portion 22dc, and the land portion 22dd are provided.
- an opening is provided in the insulating layer 22b provided on the surface of the substrate 22 and the adhesive layer 22c located immediately below the insulating layer 22b provided on the surface of the substrate 22. From this opening, the land part 22da, the land part 22db, the land part 22dc, and the land part 22dd are exposed.
- the concentrating solar power generation element 23 has a package housing 23e and an element body 23f.
- a package electrode 23g is provided on the bottom surface of the package housing 23e.
- the package electrode 23g is electrically connected to an element electrode provided on the element body 23f by solder, wire bonding or the like.
- the package electrode 23g of each concentrating solar power generation element 23 is connected to each land portion 22d. More specifically, the package electrode 23g of the concentrating solar power generation element 23a is connected to the land portion 22da. The package electrode 23g of the concentrating solar power generation element 23b is connected to the land portion 22db. The package electrode 23g of the concentrating solar power generation element 23c is connected to the land portion 22dc. The package electrode 23g of the concentrating solar power generation element 23d is connected to the land portion 22dd.
- the connection between the package electrode 23g and the land portion 22d is performed by a joining member 23h.
- the joining member 23h is, for example, solder.
- the land portion 22da is connected to the wiring layer 22aa.
- the concentrating solar power generation element 23a is connected to the wiring layer 22aa.
- the land portion 22db, the land portion 22dc, and the land portion 22dd are not connected to the wiring layer 22aa.
- a plurality of through-hole conductors 22 e are provided in the substrate 22. That is, in the substrate 22, a through-hole conductor 22eb, a through-hole conductor 22ec, and a through-hole conductor 22ed are provided.
- the through-hole conductor 22e is provided along the direction from the front surface of the substrate 22 to the back surface.
- the through-hole conductor 22e is formed by plating a conductive layer such as a metal on the inner peripheral surface of the through-hole provided along the direction from the front surface to the back surface of the substrate 22.
- the through-hole conductor 22e may be formed by filling a conductive layer such as metal inside the through-hole.
- the through-hole conductor 22eb is connected to the land portion 22db.
- the through-hole conductor 22eb extends from the layer where the wiring layer 22aa is provided to the layer where the wiring layer 22ab is provided, and is connected to the wiring layer 22ab.
- the land portion 22db and the wiring layer 22ab are connected.
- the concentrating solar power generation element 23b is connected to the wiring layer 22ab.
- the land portion 22dc is connected to the wiring layer 22ac by a through-hole conductor 22ec that reaches the layer provided with the wiring layer 22ac from the layer provided with the wiring layer 22a.
- the land portion 22dd is connected to the wiring layer 22ad by a through-hole conductor 22ed that reaches the layer provided with the wiring layer 22ad from the layer provided with the wiring layer 22aa.
- the concentrating solar power generation element 23c is connected to the wiring layer 22ac, and the concentrating solar power generation element 23d is connected to the wiring layer 22ad.
- the end through-hole conductor 22 f is provided at the end of the substrate 22.
- the end through-hole conductor 22f is provided along the direction from the front surface of the substrate 22 toward the back surface.
- the end through-hole conductor 22f is formed by plating a conductive layer such as metal on the inner peripheral surface of the through-hole provided along the direction from the front surface to the back surface of the substrate 22.
- the end through-hole conductor 22f may be formed by filling a conductive layer such as metal inside the through-hole. Therefore, in the end through-hole conductor 22f, the cross-sectional area of the wiring in the direction perpendicular to the direction in which the current flows is wide.
- the end through-hole conductor 22f extends from the layer provided with the wiring layer 22aa to the layer provided with the wiring layer 22ad, and is connected to the wiring layer 22aa, the wiring layer 22ab, the wiring layer 22ac, and the wiring layer 22ad. ing. Note that the end through-hole conductor 22 f is electrically connected to the end through-hole conductor 22 f of the other substrate 22.
- FIG. 9 is a schematic diagram showing a connection mode of the concentrating solar power generation module 2 according to the embodiment.
- the concentrating solar power generation device 23a is connected to the wiring layer 22aa
- the concentrating solar power generation device 23b is connected to the wiring layer 22ab
- the concentrating solar power generation device 23c is connected to the wiring layer 22ac.
- the concentrating solar power generation element 23d is connected to the wiring layer 22ad, and the wiring layer 22aa, the wiring layer 22ab, the wiring layer 22ac, and the wiring layer 22ad are connected to each other by the end through-hole conductor 22f. Yes.
- the plurality of concentrating solar power generation elements 23 are connected in parallel on the substrate 22. That is, the concentrating solar power generation elements 23 connected to the different wiring layers 22a are connected in parallel to each other.
- the end through-hole conductor 22f is connected to the end through-hole conductor 22f provided on the other substrate 22. Therefore, the concentrating solar power generation element 23 on a certain substrate 22 is also connected in parallel with the concentrating solar power generation element 23 on another substrate 22.
- FIG. 10 is a schematic diagram illustrating a connection mode of the concentrating solar power generation module 2 according to the first modification of the embodiment. As shown in FIG. 10, the concentrating solar power generation module 2 according to the first modification of the embodiment further includes a backflow prevention unit 25.
- the backflow prevention unit 25 passes a current in a direction from the concentrating solar power generation element 23 toward the backflow prevention unit 25, but blocks a current in a direction from the backflow prevention unit 25 toward the concentrating solar power generation element 23.
- the backflow prevention unit 25 is, for example, a diode. In this case, the anode of the diode is connected to the package electrode on the anode side of the concentrating solar power generation element 23.
- the backflow prevention unit 25 is connected to the concentrating solar power generation element 23 in series.
- the backflow prevention unit 25 is provided for each concentrating solar power generation element 23. That is, the backflow prevention unit 25 is similarly connected in series to the concentrating solar power generation element 23b, the concentrating solar power generation element 23c, and the concentrating solar power generation element 23d.
- FIG. 11 is an enlarged top view of the substrate 22 of the concentrating solar power generation module 2 according to the second modification of the embodiment.
- the land portion 22da of the substrate 22 of the concentrating solar power generation module 2 according to the second modification of the embodiment includes a land portion 22daa and a land portion 22dab.
- One of the land portions 22daa is connected to the wiring layer 22aa.
- the other of the land portions 22daa is connected to one of the land portions 22dab.
- the other of the land portions 22dab is connected to the wiring layer 22aa.
- one of the land portions 22dba is connected to the wiring layer 22ab via the through-hole conductor 22eb.
- the other of the land portions 22dba is connected to one of the land portions 22dbb.
- the other of the land portions 22dbb is connected to the wiring layer 22ab through the through-hole conductor 22eb.
- one of the land portions 22dca is connected to the wiring layer 22ac through the through-hole conductor 22ec.
- the other of the land portions 22dca is connected to one of the land portions 22dcb.
- the other of the land portions 22dcb is connected to the wiring layer 22ac through the through-hole conductor 22ec.
- one of the land portions 22dda is connected to the wiring layer 22ad via the through-hole conductor 22ed.
- the other of the land portions 22dda is connected to one of the land portions 22ddb.
- the other of the land portions 22ddb is connected to the wiring layer 22ad through the through-hole conductor 22ed.
- the package electrode 23g of the concentrating solar power generation element 23aa is connected to the land portion 22daa.
- the package electrode 23g of the concentrating solar power generation element 23ab is connected to the land portion 22dab. That is, the concentrating solar power generation element 23aa and the concentrating solar power generation element 23ab connected to the same wiring layer 22a are connected in series to each other.
- the concentrating solar power generation element 23ba and the concentrating solar power generation element 23bb connected to the wiring layer 22ab are connected in series to each other, and the concentrating solar power connected to the wiring layer 22ac is connected.
- the power generation element 23ca and the concentrating solar power generation element 23cb are connected in series to each other, and the concentrating solar power generation element 23da and the concentrating solar power generation element 23db connected to the wiring layer 22ad are mutually connected. Are connected in series.
- the concentrating solar power generation elements 23 connected to different wiring layers 22a are connected in parallel to each other and connected to the same wiring layer 22a.
- the concentrating solar power generation elements 23 are connected in series with each other.
- FIG. 12 is a schematic diagram of the hydrogen purification system according to the embodiment.
- the hydrogen purification system according to the embodiment includes the concentrating solar power generation device 1 and the hydrogen purification device 5 according to the embodiment.
- the output of the concentrating solar power generation device 1 is connected to the hydrogen purification device 5. Thereby, the electric power generated in the concentrating solar power generation device 1 is supplied to the hydrogen purification device 5.
- FIG. 13 is a schematic diagram of the hydrogen purification apparatus 5 in the hydrogen purification system according to the embodiment.
- the hydrogen purification device 5 includes a storage tank 51, an anode 52, and a cathode 53.
- the storage tank 51 stores water to be electrolyzed.
- the anode 52 and the cathode 53 are immersed in water stored in the storage tank 51.
- the anode 52 and the cathode 53 are connected to the output of the concentrating solar power generation device 1.
- FIG. 14 is a schematic diagram showing a connection mode between the hydrogen purification device 5 and the concentrating solar power generation device 1 in the hydrogen purification system according to the embodiment. As shown in FIG. 14, a plurality of hydrogen purification apparatuses 5 may be connected in series to the concentrating solar power generation apparatus 1.
- the concentrating solar power generation device 1 and the hydrogen so that the voltage dropped by the serially connected hydrogen purifying device 5 is 80% or more of the output voltage of the concentrating solar power generation device 1. It is preferable that the purification apparatus 5 is connected.
- the voltage drop in the hydrogen purifier 5 is approximately 1.7V. Therefore, the voltage drop when five hydrogen purifiers 5 are connected in series is approximately 8.5V. On the other hand, the output voltage per one concentrating solar power generation element 23 is approximately 3.0V.
- the wiring layer 22a has three layers, and the three concentrating solar power generation elements 23 are connected in series for each wiring layer 22a.
- the output voltage of the concentrating solar power generation device 1 is about 9.0V. Therefore, in this example, the above ratio is achieved.
- the wiring space is limited. Therefore, the degree of freedom in wiring design is extremely limited. Furthermore, in this case, the wiring width must be narrowed. As a result of the narrowing of the wiring width, the wiring resistance increases and the problem of heat generation occurs.
- the substrate 22 has a plurality of wiring layers 22a. Therefore, according to the concentrating solar power generation module 2 according to the embodiment, the degree of freedom in wiring design is not limited, and it is possible to reduce the output voltage while suppressing an increase in wiring resistance. .
- the concentrating solar power generation module 2 since a plurality of concentrating solar power generation elements 23 are connected in parallel, it is necessary to consider the problem of current backflow.
- the concentrating solar power generation module 2 according to the embodiment includes the backflow prevention unit 25 connected in series to the concentrating solar power generation element 23, the output voltage is reduced while preventing the backflow of current. It becomes possible.
- the concentrating solar power generation module 2 when the concentrating solar power generation elements 23 connected to the same wiring layer 22a are connected in series with each other, this adjusts the output voltage. Is possible. That is, it is possible to optimize the output voltage in accordance with the required specifications on the device (for example, the hydrogen purifier 5) connected to the concentrating solar power generation device 1.
- a large current flows through a portion where the plurality of wiring layers 22a are connected to each other.
- the concentrating solar power generation module 2 according to the embodiment has the end through-hole conductor 22f, it is possible to increase the cross-sectional area of the wiring at a portion where the plurality of wiring layers 22a are connected to each other. It is possible to suppress the problem of heat generation due to current flow.
- the number of concentrating solar power generation elements 23 to be mounted is Even if it increases, the output voltage can be lowered.
- the concentrating solar power generation device 1 which concerns on embodiment is demonstrated. Since the concentrating solar power generation device 1 according to the embodiment includes the concentrating solar power generation module according to the embodiment, the above-described effects are similarly obtained.
- the hydrogen purification system according to the embodiment since the output voltage of the concentrating solar power generation device 1 is low, it is not necessary to connect a large number of hydrogen purification devices 5 in series. That is, in the hydrogen purification system according to the embodiment, the surface areas of the anode 52 and the cathode 53 of the hydrogen purification device 5 are increased in accordance with an increase in the output current accompanying a decrease in the output voltage of the concentrating solar power generation device 1. Therefore, it is possible to easily cope with this.
- the concentrating type when the voltage dropped by the hydrogen purifier 5 connected in series is 80% or more with respect to the output voltage of the concentrating solar power generation device 1, the concentrating type. It becomes possible to suppress the loss of the electric power generated in the solar power generation device 1.
- concentrating solar power generation device 1 concentrating solar power generation device, 2 concentrating solar power generation module, 21 housing, 21a frame, 21b bottom plate, 21c top plate, 22 substrate, 22a, 22aa, 22ab, 22ad wiring layer, 22b insulating layer, 22c adhesive layer, 22d, 22da, 22daa, 22dab, 22db, 22dba, 22dbb, 22dc, 22dca, 22dcb, 22dd, 22dda, 22dbb land part, 22e, 22eb, 22ec, 22ed through hole conductor, 22f end through hole conductor, 23, 23a, 23aa, 23ab, 23b, 23ba, 23bb, 23c, 23ca, 23cb, 23d, 23da, 23db concentrating solar power generation element, 23e package housing, 23f element body, 23g package electrode, 23h joining member, 4 optics, 24a 1 primary optical system, 24b 2 primary optical system, 25 and backflow prevention unit, 3
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Abstract
Description
特許文献1に記載の集光型太陽光発電モジュールにおいては、上記のとおり複数の集光型太陽光発電素子が直列接続されている。そのため、集光型太陽光発電モジュールから出力される電圧は一般的に50V以上である。水素発生装置において水を電気分解して水素を発生させるためには、1.7V程度の電圧が供給されれば足りる。仮に、これよりも高い電圧が供給された場合には、損失が生じることになる。このように、集光型太陽光発電装置から出力される電圧が低いことが好ましい場合がある。
上記によれば、集光型太陽光発電モジュールからの出力電圧を低下させることが可能となる。
最初に本開示の実施態様を列記して説明する。
以下に、本開示の実施形態の詳細について図を参照して説明する。なお、各図中同一または相当部分には同一符号を付している。また、以下に記載する実施の形態の少なくとも一部を任意に組み合わせてもよい。
以下に、実施形態に係る集光型太陽光発電装置1の構成について説明する。
以下に、集光型太陽光発電モジュールの構成について説明する。
図10は、実施形態の第1の変形例に係る集光型太陽光発電モジュール2の接続態様を示す模式図である。図10に示すように、実施形態の第1の変形例に係る集光型太陽光発電モジュール2は、さらに逆流防止部25を有している。
図11は、実施形態の第2の変形例に係る集光型太陽光発電モジュール2の基板22の拡大上面図である。図11に示すように、実施形態の第2の変形例に係る集光型太陽光発電モジュール2の基板22のランド部22daは、ランド部22daaと、ランド部22dabとを有している。
図12は、実施形態に係る水素精製システムの模式図である。図12に示すように、実施形態に係る水素精製システムは、実施形態に係る集光型太陽光発電装置1と、水素精製装置5とを有している。集光型太陽光発電装置1の出力は、水素精製装置5に接続されている。これにより、集光型太陽光発電装置1において発電された電力は、水素精製装置5に供給される。
以下に、実施形態に係る集光型太陽光発電モジュール2の効果について説明する。
実施形態に係る集光型太陽光発電装置1は、実施形態に係る集光型太陽光発電モジュールを有しているため、同様に上記の効果を奏する。
実施形態に係る水素精製システムと異なり、集光型太陽光発電装置1の出力電圧が高い場合、集光型太陽光発電装置1の出力電圧と比較して水素精製装置5の電圧降下が低くなる。そのため、電力損失を避けるためには、極めて多数の水素精製装置5を直列接続する必要がある。
Claims (7)
- 筐体と、
前記筐体の底面上に配置され、かつ積層配置された複数の配線層を有する基板と、
前記基板上に配置され、かつ前記配線層に接続される複数の集光型太陽光発電素子とを備え、
異なる前記配線層と接続されている前記集光型太陽光発電素子は、相互に並列接続されている、集光型太陽光発電モジュール。 - 前記集光型太陽光発電素子に直列接続される逆流防止部をさらに備え、
前記逆流防止部は、前記集光型太陽光発電素子から前記逆流防止部に向かう方向の電流を通過させ、前記逆流防止部から前記集光型太陽光発電素子に向かう方向の電流を遮断する、請求項1に記載の集光型太陽光発電モジュール。 - 同一の前記配線層と接続されている前記集光型太陽光発電素子は、相互に直列接続されている、請求項1又は2に記載の集光型太陽光発電モジュール。
- 前記基板は、端部に配置されかつ前記複数の前記配線層と接続している端部スルーホール導体を有する、請求項1~3のいずれか1項に記載の集光型太陽光発電モジュール。
- 前記基板の数は複数であり、
前記複数の前記基板は、相互に並列接続されている、請求項1~4のいずれか1項に記載の集光型太陽光発電モジュール。 - 請求項1~5のいずれか1項に記載の前記集光型太陽光発電モジュールを備える、集光型太陽光発電装置。
- 請求項6に記載の前記集光型太陽光発電装置と、
前記集光型太陽光発電装置から供給される電力により水素を精製する複数の水素精製装置を備え、
前記複数の前記水素精製装置は相互に直列接続されており、
前記集光型太陽光発電装置の出力電圧に対する前記複数の前記水素精製装置における電圧降下の比は、80パーセント以上である、水素精製システム。
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AU2017293558A AU2017293558A1 (en) | 2016-07-07 | 2017-06-07 | Concentrator photovoltaic power generation module, concentrator photovoltaic power generation device, and hydrogen purification system |
EP17823929.9A EP3483942A4 (en) | 2016-07-07 | 2017-06-07 | CONCENTRATOR MODULE FOR PHOTOVOLTAIC POWER GENERATION, CONCENTRATOR DEVICE FOR PHOTOVOLTAIC POWER GENERATION AND HYDROGEN CLEANING SYSTEM |
CN201780040159.8A CN109463015A (zh) | 2016-07-07 | 2017-06-07 | 聚光型光伏模块、聚光型光伏装置和氢气产生系统 |
US16/314,059 US10818810B2 (en) | 2016-07-07 | 2017-06-07 | Concentrator photovoltaic module, concentrator photovoltaic device, and hydrogen generating system |
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