WO2017181354A1 - Système solaire de type pliant - Google Patents

Système solaire de type pliant Download PDF

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Publication number
WO2017181354A1
WO2017181354A1 PCT/CN2016/079717 CN2016079717W WO2017181354A1 WO 2017181354 A1 WO2017181354 A1 WO 2017181354A1 CN 2016079717 W CN2016079717 W CN 2016079717W WO 2017181354 A1 WO2017181354 A1 WO 2017181354A1
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WO
WIPO (PCT)
Prior art keywords
working surface
secondary working
main
light
main working
Prior art date
Application number
PCT/CN2016/079717
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English (en)
Chinese (zh)
Inventor
胡笑平
Original Assignee
博立多媒体控股有限公司
胡笑平
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Filing date
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Application filed by 博立多媒体控股有限公司, 胡笑平 filed Critical 博立多媒体控股有限公司
Priority to PCT/CN2016/079717 priority Critical patent/WO2017181354A1/fr
Publication of WO2017181354A1 publication Critical patent/WO2017181354A1/fr

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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
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • 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
    • 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 the field of clean energy technologies, and in particular to a folded solar energy system utilizing solar energy.
  • the light energy utilization system refers to a system that converts light energy into other energy, such as a photovoltaic panel, a photothermal utilization device (such as a vacuum tube, a thermoelectric power generation device, a thermal power generator), etc., and the improvement thereof mainly focuses on reducing costs, Improve energy conversion efficiency and other aspects.
  • a light energy collection system refers to a system for collecting sunlight, mainly including a solar tracking system (also known as a Japanese system) and a concentrating system.
  • the solar tracking system is mainly used to adjust the orientation and posture of the system as the sun's azimuth changes, so that as long as the coverage area is limited, the sunlight is received as much as possible.
  • the concentrating system is mainly used to concentrate the received sunlight to reduce the working area of the light energy utilization system.
  • the current Japanese system can be mainly divided into a single-axis helio-day system and a two-axis helio-day system.
  • the usual structure is to install the solar system on a single-axis or two-axis rotating drive system, along a single axis or The two-axis rotation allows the solar system to always face the current position of the sun.
  • This structure is insufficient for large-scale, heavy-weight large-scale solar systems. Therefore, it is necessary to develop alternative or complementary Japanese systems.
  • a folding solar power system comprising a main working surface and a secondary working surface.
  • the device forming the main working surface is selected from the group consisting of a light energy utilizing device, a mirror, a collecting lens, and a reflective Fresnel collecting lens.
  • the secondary working surface is rotatably connected at its edge to the edge of the main working surface or to the edge of the other secondary working surface through a rotating shaft, and at least one secondary working surface is connected with the main working surface to form a secondary work
  • the surface device is selected from the group consisting of a light energy utilization device, a mirror, and a reflective Fresnel condenser lens.
  • the rotating shaft used for the connection is used to rotate the secondary working surface in a preset control manner so that the sunlight reaches the desired position.
  • the folding solar system according to the present invention uses a simple rotating shaft structure to connect and expand the secondary working surface at the periphery of the main working surface, on the one hand, the configuration of the system can be flexibly configured, and is suitable for solar power systems of various sizes, and On the one hand, the position of the sun or the moving light can be concentrated by controlling and adjusting the posture of the secondary working surface, thereby achieving the effect of improving the solar receiving efficiency with a simple structure.
  • FIG. 1 is a schematic view showing a basic structure of a folding solar power system of the present invention
  • FIG. 2 is a schematic view of a folding solar power system of Embodiment 1;
  • FIG. 3 is a schematic view of a folding solar power system of Embodiment 2; [0014] FIG.
  • FIG. 4 is a schematic view of a folding solar power system of Embodiment 3; [0015] FIG.
  • FIG. 5 is a schematic view of a folding solar power system of Embodiment 4.
  • FIG. 6 is a schematic view of a folding solar power system of Embodiment 5; [0017] FIG.
  • FIG. 7 is a schematic view of a folding solar power system of Embodiment 6. [0018] FIG.
  • FIG. 1 A basic structure of a folding solar system according to the present invention can be referred to FIG. 1, including a main working surface W10 and a secondary working surface W20.
  • the working surface referred to in the present invention may be a working surface that realizes a function of utilizing light energy, for example, a working surface formed by a photovoltaic panel or a photothermal utilization device, or a working surface that realizes a function of collecting light energy.
  • a working surface formed by a lens or a mirror may be a mixture of the two.
  • the device forming the main working surface W10 may be selected from the group consisting of a light energy utilizing device, a mirror, a collecting lens, and a reflective Fresnel collecting lens.
  • the reflective Fresnel concentrating lens refers to a Fresnel lens whose surface is a reflecting surface (for example, having a reflective coating), and the light passing through the device is equivalent to passing through two identical Fresnel lenses, which can perform Reflection can also multiply the focusing effect of the lens.
  • the specific device type can be determined according to the needs of the design. For example, if the main working surface is designed for light energy utilization, light can be used.
  • the main working surface Formed by a volt plate or a photovoltaic film; if the main working surface is designed for light energy collection, and the light energy utilization device is disposed below the main working surface, the main working surface may be a collecting lens, especially Fresnel concentrating light The lens is formed; if the light energy utilization device is disposed above or on the side of the main working surface, the main working surface may be formed by a device having a reflection function.
  • the main working surface of Figure 1 is rectangular and planar to facilitate attachment of secondary working surfaces at its edges.
  • the macro contour of the main working surface can also adopt other shapes, and the surface can also be a spherical surface, a hyperboloid, a paraboloid or the like, as long as it is straight in the area where the secondary working surface is attached through the rotating shaft.
  • the secondary working surface W20 is rotatably connected at its edge to the edge of the main working surface W10 via a rotating shaft RoS
  • FIG. 1 As a basic structure, only one secondary working surface is shown in FIG. 1, and those skilled in the art can easily understand that, according to the concept of the present invention, FIG. 1 can be expanded in any direction according to the needs of practical applications.
  • the main working surface is a polygon, a larger number of secondary working faces can be connected.
  • a secondary working surface may be further connected to the edge of another secondary working surface to enlarge the surface area of the system and increase the flexibility of folding, as long as at least one secondary working surface is connected to the main working surface. .
  • the selectable range of device types that form the secondary working surface is substantially identical to the primary working surface, such as may be selected from the group consisting of light energy utilizing devices, mirrors, and reflective Fresnel concentrating lenses.
  • the secondary working surface is mainly used for auxiliary use of light energy or changing the direction of light, and the light energy utilization device is usually not placed under the secondary working surface, the secondary working surface generally does not use a lens.
  • the adjacent working faces are connected by a rotating shaft RoS for rotating the secondary working surface in a preset control manner so that the sunlight reaches the desired position.
  • the present invention is not limited to the specific implementation structure and driving technology of the rotating shaft, and those skilled in the art can easily select a suitable mechanism to act according to the current state of the art.
  • the rotating shaft may be a rotating shaft driven by a motor, or the rotor of the motor may be used as a rotating shaft, and the stator of the motor may be fixed to a working surface (main working surface or secondary work) to which the secondary working surface to be rotated is attached. Face).
  • the motor used can be, for example, a polyhedral ultrasonic motor or a conventional stepping motor.
  • the shafts involved in the following embodiments can be understood as such, and will not be described again.
  • the angle at which the rotating shaft rotates the secondary working surface may be 90 degrees or 180 degrees.
  • the secondary working surface can be moved between overlap and vertical with respect to the working face to which it is attached
  • the position changes in the case of 180 degrees, the secondary working surface can be positionally changed relative to its attached working surface between overlap and full extent to level.
  • the rotation angle of the rotating shaft can be controlled by a control system (not shown) connected to the driving structure of the rotating shaft, thereby controlling the shape of each secondary working surface to obtain a desired optical path.
  • the control system can be formed by selecting a suitable chip, a microprocessor component, a peripheral circuit, and matching the corresponding control software according to the current technical situation, which is not limited by the present invention.
  • the control logic can be designed according to, for example, changes in the direction of the sun in a particular application environment, and various application scenarios that require attitude changes. For example, the control system automatically adjusts the angle of rotation of each secondary work surface based on the position of the sun and the preset motion profile to maximize solar energy utilization.
  • control system may have a signal port capable of acquiring parameters such as wind speed and wind direction.
  • the control system may adjust the posture of the unfolded secondary working surface according to the wind direction, or even Fully fold all secondary work surfaces to protect the system from damage.
  • the data obtained by the signal port can come from a remote data source, such as a meteorological department, a wind power system, or the like, or from a locally set detection device.
  • the folding solar system according to the present invention has significant advantages over conventional solar energy systems
  • the conventional solar energy solar system usually has only one optical axis orientation, and the whole system as a whole performs the Japanese movement, which is not only cumbersome but also lacks flexibility, and it is often difficult to achieve optimal solar energy utilization rate.
  • the folding solar system has multiple working faces, which have different normal directions, and can maximize the utilization of solar energy by flexibly adjusting the posture of the secondary working face.
  • the folding solar system according to the present invention can reflect and focus the collected peripheral light onto the main working surface through the reflection of the secondary working surface, and the main working surface can be refocused again, thereby realizing high-concentration light. This is very advantageous for functions such as heat utilization and seawater desalination.
  • the folding solar system according to the present invention is capable of forming a light-receiving structure of various postures and shapes far larger than the floor space by expanding the secondary working surface connected step by step on the one hand, and on the other hand,
  • the folding of the secondary working surface can be recovered by folding, which can have strong wind resistance, reduce material and weight requirements, and reduce transportation and installation costs.
  • the folding solar system according to the present invention can also be combined with the existing single-axis or dual-axis heliosystem Combine, achieve the same day and focus of multiple working faces, so as to achieve near-optimal solar energy utilization.
  • FIG. 2 One embodiment of a folding solar power system in accordance with the present invention can be seen in reference to FIG. 2, including a primary work surface 110, a secondary work surface 120, a single-axis heliostat system 130, and a light energy utilization device 140.
  • the main working surface 110 is a concentrating lens, such as a Fresnel concentrating lens.
  • the secondary working surface 120 is a mirror or a reflective Fresnel concentrating lens that is coupled to the edge of the main working surface by an angle-adjustable rotating shaft RoS.
  • the main working surface 110 is mounted to a single axis heliosystem 130 that includes a rotor 131 and a stator 132.
  • the rotor 131 is substantially parallel to the normal to the main working surface 110.
  • the shaft forming the rotor is a hollow structure, and the inner wall is plated with a reflection film 133 (or a light guide tube is disposed inside) so that the rotor functions as a light guiding element.
  • the sunlight concentrated through the main working surface is guided by the light guiding element to a light energy utilization device 140 located below the main working surface.
  • This structure makes the rotor of the single-axis heliosystem cleverly act as a light guiding element, and directs the light collected by the main working surface to the bottom of the system without additional components, which not only increases the efficiency of solar energy utilization. , also increases the stability and reliability of the system.
  • the light energy utilization device 140 is a closed light energy utilization device, and the closed light energy utilization device refers to that the sunlight is substantially enclosed in the light energy utilization device after entering the light energy utilization device. Will not be lost at will.
  • the inner wall of the light energy utilization device may be composed of a photovoltaic panel and a mirror, and the outer wall may be metal or thermoelectric conversion transposed.
  • the photovoltaic energy utilization device may simply employ a photovoltaic panel or a simple photothermal utilization device.
  • the light energy utilization device 140 may further be disposed in another buffered or closed container 150 filled with a cooling liquid, so that the container is formed into a heat exchange system. It is used to cool the light energy utilization device or to reuse the heat energy generated by the device.
  • the so-called open type means that the working fluid (coolant) of the heat exchange system can exchange controlled substances with the outside world, for example, from an outlet and from an inlet.
  • the term "closed” refers to the closed cycle of the working fluid of the heat exchange system.
  • the coolant used may be sea water, fresh water, cooling oil, refrigerant (such as Freon), alcohol, and the like. In other embodiments, a simpler heat exchange structure may also be employed.
  • a photovoltaic panel used as a light energy utilization device may be disposed on a surface of a water tank such that the water tank becomes a water heater, or the photovoltaic panel may be placed in a heat. On the electric conversion device, the heat generated by the photovoltaic panel is used to further generate electricity.
  • this embodiment shows a case in which the folding heliosystem according to the present invention is used in conjunction with a conventional single-axis heliosystem, which is greatly enhanced at a very small cost.
  • the light collection capability of the traditional Japanese system has many advantages:
  • the added secondary working surface is only a simple mirror or a reflective Fresnel concentrating lens, which can be low in cost and weight, and can also be The necessary time is folded on the main work surface to enhance the wind resistance of the system, which makes it almost impossible to increase the overall cost and strength requirements of the system, but can significantly improve the light receiving capacity of the system (if the same light receiving capacity)
  • the cost and strength requirements of the existing single-axis heliosystem can be significantly reduced).
  • the normal of the main working surface can maintain the direction substantially parallel to the current sunlight, improve the direct sunlight intensity, and also make the secondary working surface reflect the sunlight to The efficiency on the main work surface is improved.
  • the system of the embodiment can effectively reduce light pollution.
  • the main working surface as the concentrating system will only produce very little reflection, and part of the reflection of the main working surface will return to the sky after being reflected again by the secondary working surface.
  • the sunlight shining on the secondary working surface is mainly reflected on the main working surface, and only a small part will be shot to the ground. Therefore, the reflected light of the system is not substantially seen in the distance.
  • the folding helio-day structure having one rotating shaft RoS is used in conjunction with a single-axis helio-day system in this embodiment, this is completely different from the conventional two-axis helio-day system.
  • the conventional two-axis heliostat system also has two rotating shafts, the light receiving portion still moves as a whole, but the moving trajectory can be changed around the two rotating shafts respectively. In other words, both rotating shafts are used. Controls the position of the entire work surface (which can be seen as the "main work surface").
  • the light receiving portion in this embodiment has two working faces, and the angle between them is adjustable.
  • the two rotating shafts respectively control the positional changes of different working faces, and this difference makes the system of the embodiment have a better posture. Flexibility to increase the ability to collect sunlight. Therefore, the system of the present embodiment can be regarded as a novel two-axis multi-pose solar system.
  • the folding Japanese structure may be further used in conjunction with the dual-axis heliosystem, that is, the main working surface is installed in the dual-axis heliosystem; or the main working surface may be mounted on the fixed bracket.
  • the normal of the main working surface is preferably parallel to the noon (ie, the strongest sunshine) The direction of the sun's light, so that the main working face gets the most direct sunlight.
  • FIG. 3 Another embodiment of the folding solar system according to the present invention can refer to FIG. 3, including a main working surface 2 10, three secondary working surfaces 221, 222, 223, and a photovoltaic panel used as a light energy utilization device. 240 and a split heat exchange system 250.
  • the main work surface 210 is a Fresnel type concentrating lens.
  • the three secondary working faces are mirrors or photovoltaic panels, and each is connected to one side of the main working surface by a corresponding rotating shaft (for the sake of simplicity, the rotating shaft connecting the working surfaces is no longer identified in the drawing, the same below).
  • the photovoltaic panel 240 is disposed on the upper surface of the split heat exchange system 250, and the heat exchange system 250 is provided with a coolant inlet 251 and a coolant (or steam generated by vaporization of the coolant after being heated) outlet 252.
  • the light concentrated by the main working surface 210 is directly incident on the photovoltaic panel 240, and the heat generated by the photovoltaic panel is utilized by the heat exchange system 250.
  • photovoltaic panel 240 may also be replaced with a thermoelectric conversion device such as a semiconductor thermoelectric generator.
  • the system of the present embodiment can be directly suspended in water, or can be disposed on the mounting surface 231 through a fixed bracket 230, which can be, for example, a roof, a valve floating on the water surface, an artificial island, or the like.
  • This embodiment provides a system having a plurality of secondary working faces, each of which has a rotational angle typically ranging from 90 degrees or 180 degrees.
  • the accuracy requirements of the invention for the angle of rotation are not high.
  • the specific attitude control method can be obtained according to the latitude and longitude of the current location of the system, the installation height and orientation, the type, performance, and area of each working surface, or obtained through experimental means.
  • the conventional Japanese system is not used in this embodiment, which makes the embodiment have a wider application range.
  • Traditional day-to-day systems have high strength requirements for the mounting surface, which makes it difficult to meet installation requirements in many locations, such as roofs, light roofs on solar farms, and water surfaces.
  • the system of the present embodiment is more suitable for these installation sites, thereby facilitating the diversified application of the solar energy system.
  • the orientation of many existing roofs is not the best orientation facing the sun. It is obviously unsafe and not suitable to install a bulky traditional Japanese system on the roof.
  • the system can reflect sunlight onto the main working surface through the mirror (secondary working surface), and then focus on the photovoltaic below through the main working surface.
  • solar energy is directly generated by solar energy.
  • the sunlight that is not converted into electric energy is converted into heat energy, and the heat energy or hot water required in the room is supplied through a heat exchange system (water heater).
  • the three secondary working faces can also be photovoltaic panels that directly utilize the received sunlight.
  • the system of the present embodiment can also be used to construct a large-scale surface solar power station, and can be used as a leisure and sightseeing place.
  • Existing solar systems typically only consider the benefits of converting solar energy into electrical energy and thermal energy.
  • Large solar power plants can also have other value, such as greenhouses, farms, underwater breeding bases, leisure or sightseeing sites. This not only makes fuller use of the ground and water surface, but also increases the investment value of solar power plants through applications other than energy conversion.
  • the system of this embodiment can meet these needs.
  • the system of the embodiment can be formed as an artificial island, the solar system at the top of which realizes the function of power generation and seawater desalination, and the mounting surface can be used as a leisure or sightseeing platform, and the surroundings under the platform.
  • Fishing nets can also be set up to form a marine fishery.
  • FIG. 4 Another embodiment of the folding solar system according to the present invention can refer to FIG. 4, including a main working surface 3 10, seven secondary working surfaces 321 327 327, serving as a light guiding column 330 for fixing the bracket, and light energy.
  • the device 34 0 and the split heat exchange system 350 are utilized.
  • the main working surface 310 is a Fresnel-type concentrating lens with a rectangular outline, and two opposite sides are respectively connected with a rectangular first secondary working surface 321 and a third secondary working surface 323, and another side
  • the second secondary working surface 322 is connected to the side.
  • the side of the first secondary working face opposite the main working face is also connected to a fourth secondary working face 324, the side of which is opposite the main working face of the third secondary working face is also connected to the fifth secondary working face 325.
  • the fourth secondary working surface is rectangular, and a side adjacent to the first secondary working surface is further connected with a sixth secondary working surface 326, and the fifth secondary working surface is rectangular, and the third secondary working surface
  • a seventh secondary working surface 327 is also connected to the adjacent one side.
  • Each of the connected working faces is connected by a rotating shaft whose angle of rotation is adjustable.
  • the other five secondary working faces are used. Both can be mirrored. If the pursuit of maximum light energy efficiency is used, photovoltaic panels can be used for all seven secondary working surfaces. It is worth noting that when the secondary working surface is made of photovoltaic panels, it can not only utilize the light energy directly irradiated by the sun, but also reuse the light energy reflected by other secondary working surfaces.
  • the sunlight concentrated through the main working surface 310 is guided through the light guiding column 330 (for example, a hollow tube having a reflective coating on the inner wall) to the enclosed light energy utilization device 340 located below the main working surface, by being disposed on the inner surface thereof.
  • the photovoltaic panels are photoelectrically converted, and the generated thermal energy is further absorbed by a sputum heat exchange system 350 that is external to the light energy utilization device 340.
  • the heat exchange system 350 is provided with a coolant inlet 351 and a coolant or steam outlet 352.
  • the system of the present embodiment does not need to maximize the utilization of light energy on a single surface, but utilizes the deformation of the three-dimensional structure to achieve full utilization of light energy by comprehensively adjusting the direct and reflective states on each working surface. Since the main working surface can adopt a high-efficiency concentrating system and an integrated device capable of fully utilizing the light energy, the light energy collected from the periphery is reflected to the main working surface for utilization, and the conversion is more efficient than directly using the photovoltaic panel for conversion. Lower cost.
  • This embodiment provides a high-performance multi-faceted folding solar system in a multi-stage expansion manner, and is particularly suitable for applications with high concentration ratio requirements, for example, thermal energy utilization, seawater desalination, energy storage, or Large-scale multi-functional solar system with functions such as artificial fuel.
  • a large number of light guiding devices are required to guide the light concentrated by the plurality of collecting systems into the closed light energy utilization container, which is complicated in structure and difficult to manufacture and install.
  • This embodiment can solve this problem well by using an inexpensive mirror or reflective concentrating surface to concentrate the light energy received by a plurality of surfaces onto a concentrating surface for convergence, thereby generating large-scale electric energy at low cost and Thermal energy.
  • the light guide column in this embodiment can also be made into a single-axis rotor that can be used in the same manner as in the first embodiment.
  • FIG. 5 Another embodiment of a folding solar system according to the present invention can refer to FIG. 5, including a main working surface 4 10, three secondary working surfaces 421, 422, 423, and a dual-axis helio-day system 430 for use as The photovoltaic panel 440 and the split heat exchange system 450 of the light energy utilization device.
  • the three secondary working faces are each connected to one side of the main working surface by a corresponding rotating shaft.
  • the main work surface 41 0 is mounted to the dual-axis helio-day system 430 so that a day-to-day system can drive multiple work surfaces for day-to-day motion.
  • the dual-axis helio-day system 430 includes a rotor 43A and a stator 432' that control the motion about the first axis of rotation, and a rotor 43A and a stator 432" that control the motion about the second axis of rotation.
  • the control of the helio-day system is usually
  • the main principle is to maximize the light intensity of the working face, taking into account the reflection of the secondary working face to obtain the optimal light energy collection efficiency.
  • Photovoltaic panels 440 are disposed on the surface of the split heat exchange system 450 to receive and convert light reflected (focused) from the various working surfaces on the one hand, and heat exchange system 450 on the other hand.
  • the heat exchange system 450 is provided with a working fluid inlet 451 and a working fluid outlet 452.
  • the main working surface of the previous embodiment mainly adopts a scatter concentrating mode
  • the main working surface of the embodiment adopts a reflective concentrating mode.
  • the devices forming the primary working surface and the secondary working surface may all be mirrors or reflective Fresnel concentrating lenses so that sunlight can be concentrated and concentratedly reflected onto a light energy utilization device.
  • the main working surface preferably uses a reflective Fresnel concentrating lens
  • the secondary working surface can be a simple planar mirror, which first reflects the light onto the main working surface, then focuses the main working surface and then reflects it to the light. Can use the device.
  • the secondary working surface can also use a reflective condenser lens to directly focus and reflect the light to the light energy utilization device.
  • a plurality of distributed, folded, reflective (concentrating) structures can be used in combination, i.e., multiple folding reflective (concentrating) structures reflect and concentrate light onto a light energy utilization device. In this way, not only can the energy density received by the light energy utilization device be increased, the energy utilization efficiency can be improved, and the cost can be effectively reduced.
  • FIG. 6 Another embodiment of a folding solar system according to the present invention can refer to FIG. 6, including a main working surface 5 10, three secondary working surfaces 521, 522' 523, a heat exchange system 550, and a reflective concentrating light. System 560.
  • the main working surface of the previous embodiment is mainly used for collecting light, and is generally part of the solar energy system for collecting light energy, and the main work in this embodiment.
  • Photovoltaic panels are used in the surface, which is part of the conversion and utilization of light energy in solar systems.
  • the photovoltaic panel forming the main working surface faces downward (facing the reflective concentrating system 560), and the heat exchange system 550 is disposed above the main working surface for utilizing the heat generated thereby.
  • the main work surface is supported above the reflective concentrating system 560 by a fixed support structure 530.
  • the three secondary working faces are each connected to one side of the main working surface by a corresponding rotating shaft.
  • the reflective concentrating system 560 can employ, for example, a reflective Fresnel concentrating system.
  • Each secondary working surface may be formed by a double-sided photosensitive photovoltaic panel, or each secondary working surface may be One side is sensitive and the other side is reflective, or each secondary working surface can be double-sided reflective. Adjusting the attitude of the secondary working surface by the rotating shaft, the focus position of the reflective concentrating system 560 can be readjusted back to the main working surface when the sunlight is shifted (as indicated by the dotted arrow in FIG. 6), or When the photovoltaic panel is provided on the secondary working surface, the focal plane where the offset occurs can be covered by adjusting the posture of the secondary working surface (as indicated by the solid arrow in Fig. 6).
  • the reflective concentrating system does not have the ability to follow the day, when the sun is too far away from the optical axis of the concentrating system, the focus center deviation will occur.
  • the system can adjust the shape of the secondary working surface, expand the area of the light receiving surface (photovoltaic panel) or change the position of the focal plane by reflection to cope with the deviation of the focal plane. As shown in FIG.
  • the secondary working surface 521 when the focal plane is biased to the left side, the secondary working surface 521 can be laid flat so that its lower surface covers the moving focal plane, or when the lower surface of the secondary working surface 521 is mirrored, The angle can be adjusted such that most of the light focused by the concentrating system 560 is reflected back and again focused onto the main work surface 510 by the concentrating system 560.
  • the three secondary working faces At noon, when the sun is above the system (the focal plane is not offset), the three secondary working faces can be erected, and of course the light can be flattened or concentrated on the heat exchange system 550.
  • This embodiment proposes another method of following the Japanese, that is, the direction of the first light-receiving surface is not adjusted (directly with the day), but the area or position of the focus center of the system is adjusted.
  • the effect of this method is not as direct as the Japanese, it can significantly reduce the cost of the system. This is because the components of the central portion are significantly smaller in size, quantity, and weight than the surrounding light harvesting system, so the control structure is less demanding and requires less energy.
  • the reflective concentrating system 560 can be further extended by a method similar to the folded structure of the extended light-receiving surface in Embodiment 3 to compensate for the deficiency of the effective light-receiving area.
  • the system of the embodiment enables the concentrating system to achieve the effect of improving the utilization of light energy by active adjustment or passive adaptation of the focus plane without the ability to follow the Japanese.
  • FIG. 7 Another embodiment of a folding solar system in accordance with the present invention can be seen in FIG. 7, including a main working surface 610 and four secondary working surfaces 621, 622, 623, 624.
  • the previous embodiment changes the direction of the light by adjusting the angle of the secondary working surface, thereby allowing the sunlight to reach the desired position.
  • the secondary working surface achieves the purpose of changing the position of the sunlight by covering or exposing the main working surface. This embodiment shows that by adjusting the position at which the sunlight reaches, the switching of the solar energy utilization mode can be realized.
  • the main work surface 610 is a surface formed by a light receiving surface of the photothermal utilization device 640 serving as a light energy utilization device.
  • the four secondary working faces 621, 622, 623, 624 are each connected to one side of the main working surface 610 by a corresponding rotating shaft, and the four secondary working faces are folded onto the main working surface, substantially covering the main working surface (eg covering more than half of the area).
  • This embodiment may further include a concentrating system that converges sunlight onto the main work surface and other required components, such as supports, pipes, etc., for simplicity, not shown in FIG.
  • the four secondary working faces have two operating states, one of which is the snoring state shown in FIG. 7, and the other of which is the closed state shown by the broken line in FIG.
  • Thin metal wires can be placed at the dotted line for heat transfer and positioning, or additional components are not provided.
  • the front side of the four secondary working faces 621, 622, 623, 624 (the upward facing face in the closed state) is a photovoltaic panel, and the back side (the upward facing surface in the snoring state) can be selected as a reflecting surface according to the design requirements.
  • the heat conducting surface for example, if the secondary working surface is required to become the receiving surface after snoring, the mirror surface or the reflective Fresnel lens surface can be used. If the secondary working surface does not need to receive light after snoring, ordinary heat conduction can be used. surface.
  • This embodiment can be used to solve two problems in a concentrating solar power system.
  • One is the mode switching problem of photoelectric utilization and photothermal utilization, and the other is the problem of power output and temperature endurance of photovoltaic panels under high concentration.
  • Current concentrating solar systems typically operate in a single mode, such as a photovoltaic utilization mode, or a photothermal utilization mode.
  • a solar energy system utilizing photovoltaic and photothermal energy is realized to adapt to changes in light intensity between different seasons, climates, and different daylights.
  • photothermal utilization generally requires a large concentration ratio, while photovoltaic utilization cannot withstand too high a light intensity.
  • the mode switching between the photothermal utilization and the photoelectric utilization or the distribution of the light input energy can be realized by adjusting the position of the secondary working surface, thereby solving the problem of power output and temperature endurance of the photovoltaic panel under high-concentration light. .
  • the four secondary working faces of the embodiment may be in a closed state, and the photovoltaic panel on the front side of the secondary working surface is used for photoelectric conversion,
  • the thermal energy generated by the light energy converted into electrical energy can be further utilized by the photothermal utilization device 640 through the main working surface 610.
  • the sun is too strong (such as noon on a sunny day)
  • the four secondary working faces can be smashed, and the light-heating device 630 is used directly to receive the concentrated sunlight.

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  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un système solaire de type pliant, comprenant une face de travail primaire (110, 210, 310, 410, 510, 610) et des faces de travail secondaires (120, 221, 222, 223, 321, 322, 323, 324, 325, 326, 327, 421, 422, 423, 521, 522, 523, 621, 622, 623, 624). Une face de travail secondaire est reliée de manière rotative, au niveau d'un bord de celle-ci, à un bord de la face de travail primaire ou à un bord d'une autre face de travail secondaire au moyen d'un arbre rotatif (RoS). Le dispositif formant chaque face de travail est choisi dans le groupe comprenant un dispositif d'utilisation d'énergie lumineuse (640), un dispositif de réflexion et un dispositif de collecte de lumière. L'arbre rotatif utilisé est connecté de manière à permettre la rotation des faces de travail secondaires en fonction d'un mode de commande prédéfini de telle sorte que la lumière solaire atteint la position exigée. La connexion et l'expansion des faces de travail secondaires autour de la face de travail primaire en utilisant une structure d'arbre rotatif simple permet, premièrement, de configurer la forme du système de manière flexible en vue de l'appliquer à des systèmes solaires de différentes tailles et, deuxièmement, de réaliser la poursuite de la lumière solaire ou le déplacement d'une position de convergence de lumière par commande et réglage de l'orientation des faces de travail secondaires, de façon à obtenir une amélioration de l'efficacité de l'effet de réception d'énergie solaire avec une structure simple.
PCT/CN2016/079717 2016-04-20 2016-04-20 Système solaire de type pliant WO2017181354A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101929786B1 (ko) * 2018-04-24 2018-12-17 김주동 반사판을 이용한 태양광 발전장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013002093A1 (fr) * 2011-06-27 2013-01-03 シャープ株式会社 Dispositif de génération d'énergie photovoltaïque
CN203850320U (zh) * 2014-05-16 2014-09-24 海诚建筑设计院(上海)有限公司 一种高效太阳能板
CN104734620A (zh) * 2015-04-07 2015-06-24 安徽工业大学 一种简易型太阳能综合利用装置
CN204633699U (zh) * 2015-04-23 2015-09-09 常州市嘉乐钢板网制造有限公司 八面漏斗聚光器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013002093A1 (fr) * 2011-06-27 2013-01-03 シャープ株式会社 Dispositif de génération d'énergie photovoltaïque
CN203850320U (zh) * 2014-05-16 2014-09-24 海诚建筑设计院(上海)有限公司 一种高效太阳能板
CN104734620A (zh) * 2015-04-07 2015-06-24 安徽工业大学 一种简易型太阳能综合利用装置
CN204633699U (zh) * 2015-04-23 2015-09-09 常州市嘉乐钢板网制造有限公司 八面漏斗聚光器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101929786B1 (ko) * 2018-04-24 2018-12-17 김주동 반사판을 이용한 태양광 발전장치

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