WO2020245967A1 - Module de cellules solaires - Google Patents

Module de cellules solaires Download PDF

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Publication number
WO2020245967A1
WO2020245967A1 PCT/JP2019/022485 JP2019022485W WO2020245967A1 WO 2020245967 A1 WO2020245967 A1 WO 2020245967A1 JP 2019022485 W JP2019022485 W JP 2019022485W WO 2020245967 A1 WO2020245967 A1 WO 2020245967A1
Authority
WO
WIPO (PCT)
Prior art keywords
power generation
generation unit
solar cell
cell module
light
Prior art date
Application number
PCT/JP2019/022485
Other languages
English (en)
Japanese (ja)
Inventor
美雪 塩川
五反田　武志
穣 齊田
裕之 宮内
佳男 山本
智博 戸張
山下　勝也
和人 布施
Original Assignee
株式会社 東芝
東芝エネルギーシステムズ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 東芝, 東芝エネルギーシステムズ株式会社 filed Critical 株式会社 東芝
Priority to PCT/JP2019/022485 priority Critical patent/WO2020245967A1/fr
Priority to JP2021524590A priority patent/JP7204910B2/ja
Publication of WO2020245967A1 publication Critical patent/WO2020245967A1/fr

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Classifications

    • 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
    • H02S30/00—Structural details of PV modules other than those related to light conversion
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • 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

Definitions

  • An embodiment of the present invention relates to a solar cell module.
  • Solar power generation is widespread as an example of using renewable energy.
  • photovoltaic power generation from the viewpoint of improving power generation efficiency, it is common to install a solar cell module in which a plurality of solar cell cells are arranged without gaps.
  • the decrease in the amount of light due to the occurrence of shade as described above is a problem that applies not only to agriculture as described above, but also to the case where a predetermined amount of light is required in the facility.
  • An embodiment of the present invention solves the above-mentioned problems, and an object of the present invention is to provide a solar cell module capable of achieving both power generation by sunlight and securing of a required amount of light.
  • the solar cell module of the present embodiment is a solar cell module installed on a roof or an outer wall configured to include a transparent material of a facility, and a plurality of solar cell modules that receive sunlight to generate electricity.
  • the power generation unit and a plurality of light transmitting units that allow sunlight to pass through the power generation unit, and the power generation unit and the light transmission unit share at least a part of one side of the adjacent light transmission unit and the power generation unit. It is characterized in that it is arranged alternately in two directions.
  • FIG. 1 It is a figure which shows the facility where the solar cell module which concerns on embodiment is installed. It is a block diagram of the solar cell module installed on the roof of a facility. It is a block diagram of the solar cell module installed on the outer wall of a facility. It is a circuit diagram of the solar cell module which concerns on embodiment. It is a block diagram of the solar cell module which concerns on other embodiment installed on the roof of a facility. It is a block diagram of the solar cell module which concerns on other embodiment installed on the outer wall of a facility.
  • FIG. 1 is a diagram showing a facility in which a solar cell module according to the present embodiment is installed.
  • Facility 1 has a roof 11 or an outer wall 12 provided with a transparent material 1b.
  • the facility 1 is a vinyl house.
  • the vinyl house has an aggregate 1a forming the skeleton of the vinyl house and a transparent material 1b covering the surface of the skeleton formed by the aggregate 1a.
  • the aggregate 1a is made of, for example, steel or wood.
  • the transparent material 1b is composed of, for example, a resin film such as a polyoololene film, an agricultural vinyl chloride film, and a fluorine-based film.
  • the roof 11 and the outer wall 12 are formed by stretching the aggregate 1a with the transparent material 1b.
  • the shape of the vinyl house can be any shape as long as it has a roof 11 and an outer wall 12.
  • the vinyl house has an arch shape in which the outer wall 12 is provided substantially perpendicular to the ground and the roof 11 continuing from the outer wall 12 forms an arch shape.
  • the solar cell module 2 is installed on the roof 11 or the outer wall 12 so that its end is located on the aggregate 1a.
  • FIG. 2 is a configuration diagram of the solar cell module 2 installed on the roof 11.
  • FIG. 3 is a configuration diagram of the solar cell module 2 installed on the outer wall 12.
  • the solar cell module 2 has a plurality of power generation units 21 that receive and generate sunlight, and a plurality of light transmission units 22 that allow sunlight to pass through.
  • the power generation unit 21 is configured by connecting a plurality of solar cells 20 in series.
  • the solar cell 20 is rectangular, and the solar cells 20 of the same size are connected in series in the short side direction thereof to form a sunlight receiving surface.
  • the solar cell 20 is a semiconductor element that receives sunlight and converts it into electrical energy.
  • known ones can be used, for example, silicon-based solar cells such as single crystal, polycrystalline, amorphous, and multi-junction, compound-based solar cells such as CIS-based, CIGS-based, GaAs-based, and CdTe-based, and dyes.
  • Sensitizing, organic semiconductor-based solar cells, perovskite solar cells, and quantum dot solar cells can be used.
  • the light transmitting unit 22 is a part for passing sunlight and taking in sunlight into the facility 1.
  • the power generation unit 21 and the light transmission unit 22 are arranged on a base made of a transparent film or sheet. That is, the power generation unit 21 is fixed to the base with an adhesive or the like.
  • the adhesive a silicone resin, an EVA material, a polyolefin-based elastomer (POE), or the like can be used.
  • the light transmitting unit 22 is a space portion on the base where the power generation unit 21 is not arranged. However, since the light transmitting portion 22 may allow sunlight to pass through, the base, the transparent plate, or the transparent material 1b may be used.
  • a protective member such as a transparent film, sheet or plate may be provided on the surface side of the power generation unit 21 and the light transmission unit 22, that is, on the side opposite to the base, in order to protect the power generation unit 21.
  • the base and protective member can be made of polyethylene terephthalate (PET), polyvinyl chloride (PVC) or the like.
  • the power generation unit 21 and the light transmission unit 22 are alternately arranged in two directions so as to share at least a part of one side of the adjacent light transmission unit 22 and the power generation unit 21. ..
  • the power generation unit 21 and the light transmission unit 22 have a rectangular shape.
  • the power generation unit 21 and the light transmission unit 22 may be arranged so that the power generation unit 21 and the light transmission unit 22 have the same size and the four light transmission units 22 are adjacent to one power generation unit 21. .. That is, the power generation units 21 may come into contact with each other at a corner. Further, as in the present embodiment shown in FIGS. 2 and 3, the power generation unit 21 may be arranged so that a part of one side overlaps with the adjacent power generation unit 21.
  • the short sides of the solar cells 20 provided at both ends of the power generation unit 21 overlap each other, and the adjacent power generation units 21 are electrically connected by wiring at the overlapping portions.
  • the plurality of power generation units 21 are electrically connected in series and in parallel.
  • the power generation unit 21 is provided with an anode and a cathode, and the anode and the cathode are provided with two wirings 23 for electrically connecting to the adjacent power generation unit 21.
  • the wiring 23 is provided so as to straddle the short sides of the solar cell 20 provided at both ends of the power generation unit 21, and is electrically connected to the anode or cathode of the adjacent power generation unit 21.
  • the two wires 23 provided on the cathode of the power generation unit 21 are connected to one of the anodes of the adjacent power generation unit 21 and the other to the anode of the other adjacent power generation unit 21.
  • the two wires 23 provided at the anode of the power generation unit 21 are connected to the cathode of the adjacent power generation unit 21 on one side and to the cathode of the other power generation unit 21 adjacent to each other.
  • the lower light-transmitting unit 22 closer to the ground surface is the upper light-transmitting unit 22 farther from the ground surface than the light-transmitting unit 22.
  • the length in the vertical direction is longer than that of the optical portion 22. This is to allow sunlight to enter deep into the facility 1 even if the angle of incidence of sunlight on the ground surface is shallow.
  • the vertical direction is a direction perpendicular to the ground surface.
  • the back surface of the power generation unit 21, that is, the surface inside the facility 1 has light reflectivity.
  • the back surface of the power generation unit 21 is made of a material having a large difference in refractive index from the atmosphere, and the back surface of the power generation unit 21 is a metal film such as Au, Ag, Al, or a metallic luster film.
  • a plastic, a film having a filler, a white back sheet, and a white EVA material are provided.
  • a cable 24 for collecting the electric power generated by the power generation unit 21 is provided.
  • the cable 24 is fixed to the aggregate 1a of the facility 1.
  • Examples of the fixing method include wire fixing in which the cable 24 is wound around the aggregate 1a with a wire and fixed.
  • the solar cell module 2 is provided so as to bridge between the two parallel aggregates 1a, and the cables 24 are provided at both ends of the solar cell module 2, but between the aggregates 1a.
  • cables 24 may be provided at both ends of the power generation unit 21.
  • the cable 24 is connected to, for example, a junction box (not shown) or a power conditioner that converts DC power into AC power via a junction box and a current collector box, and powers the DC power collected from the solar cell module 2. Output to the conditioner.
  • a junction box not shown
  • a power conditioner that converts DC power into AC power via a junction box and a current collector box, and powers the DC power collected from the solar cell module 2. Output to the conditioner.
  • the solar cell module 2 of the present embodiment is a solar cell module 2 installed on a roof 11 or an outer wall 12 including a transparent material 1b of a facility 1, and is a plurality of solar cell modules 2 that receive sunlight to generate electricity.
  • the facility 1 is a greenhouse
  • plants are cultivated inside.
  • the power generation unit 21 is spread over the roof 11 or the outer wall 12 of the vinyl house, the sunlight does not enter the inside of the vinyl house and becomes shaded, and the growth of plants is hindered.
  • the power generation unit 21 and the light transmission unit 22 are alternately arranged in two directions so as to share at least a part of one side of the adjacent light transmission unit 22 and the power generation unit 21, so that the sun A part of the light can be incident on the power generation unit 21 to generate power. Further, the remaining portion passes through the light transmitting portion 22 and enters the vinyl house, and the plants in the vinyl house are exposed to the light to promote the growth.
  • the harvest rate is, for example, the yield per unit area.
  • Plants cannot be used up for growth even if the amount of light exceeds the light saturation point, and can be rather damaging. On the other hand, if the amount of light is too small, growth is inhibited.
  • the power generation unit 21 is configured by connecting a plurality of solar cell 20s in series. Thereby, the size of the power generation unit 21, and by extension, the size of the light transmission unit 22 can be adjusted. Therefore, the amount of light in the facility 1 can be adjusted, and the balance between power generation and plant harvest can be adjusted.
  • the power generation unit 21 is arranged so that a part of one side overlaps with the adjacent power generation unit 21. As a result, wiring can be facilitated because wiring can be performed at this overlapping portion. Further, as compared with the case where the power generation unit 21 is arranged apart from the adjacent power generation unit 21, the adjacent power generation units 21 are arranged closer to each other, so that the power generation units 21 are electrically connected to each other. The length of the wiring can be shortened and the impedance can be lowered. That is, it is possible to reduce the loss caused by the generated electricity flowing through the wiring. Further, since the wiring is short, it is possible to suppress disconnection due to strong wind or catching an obstacle.
  • the power generation unit 21 is provided with an anode and a cathode, and the anode and the cathode are wired in two places for electrical connection with the adjacent power generation unit 21.
  • the power generation units 21 are connected in series and in parallel, so that the influence of hot spots can be reduced. That is, if the power generation unit 21 is only connected in series, the power generation unit 21 will be shaded by deposits such as fallen leaves and bird droppings on any of the power generation units 21 of the solar cell module 2, and power generation will not be possible. .. In this case, the power generation unit 21 becomes a resistance and may generate heat.
  • a current can be passed through another path so as to avoid the shaded power generation unit 21, and the influence of the hot spot can be reduced.
  • the back surface of the power generation unit 21 has light reflectivity. As a result, the light scattered on the surface of the earth is reflected by the back surface of the power generation unit 21 and heads toward the surface of the earth again. Can shed light on.
  • the lower light-transmitting part 22 near the ground surface has a longer vertical length than the upper light-transmitting part far from the ground surface.
  • a cable 24 for collecting the electric power generated by the power generation unit 21 was provided, and the cable 24 was fixed to the aggregate 1a of the vinyl house.
  • the cable 24 is supported by the aggregate 1a, it is possible to prevent the local load by the cable 24 from becoming a burden on the transparent material 1b, and it is possible to improve the durability.
  • the cable 24 can be further improved in durability by being fixed along the aggregate 1a.
  • the solar cell module 2 is provided with a base which is a transparent film or sheet, and the power generation unit 21 is provided on the base.
  • the solar cell module 2 can be configured as one bulk body without providing a metal frame such as aluminum for supporting the power generation unit 21. Since the transparent base is lighter than the metal frame, the load on the transparent material 1b of the vinyl house can be reduced, and the durability can be improved.
  • Facility 1 may be a facility having a roof or an outer wall provided with a transparent material 1b and requiring light inside.
  • the facility 1 may be a glass house using a glass plate as a transparent covering material, a carport, a sports gym, a tent, or the like. People may stay in these facilities, and some brightness is required.
  • the power generation unit 21 and the light transmission unit 22 are quadrangular, but they may be polygons such as triangles, pentagons, and hexagons, or a plurality of polygons may be combined.
  • the power generation unit 21 is arranged so as to share the short side of the solar cell 20 at the end with the adjacent power generation unit 21, although FIG. And, as shown in FIG. 6, they may be arranged so as to share a part of the long side of the solar cell 20 at the end.
  • the power generation unit 21 is arranged so as to share the short side of the adjacent power generation unit 21 and the solar cell 20 at the end (hereinafter, also referred to as “arrangement as shown in FIG. 2”).
  • the scribing portion which is the groove portion of the solar cell 20, is aligned and wired, the design is excellent. Further, as shown in FIG.
  • the power generation unit 21 is also referred to as an array that shares a part of the long side of the solar cell 20 at the end with the adjacent power generation unit 21 (hereinafter, “arrangement as shown in FIG. 5””.
  • the wiring 23 is installed in the direction perpendicular to the ground, the strength against pulling by gravity is strong, and the disconnection of the wiring 23 can be suppressed.
  • the arrangement shown in FIG. 2 has a larger light transmitting portion 22 and a smaller power generation portion 21 than the arrangement shown in FIG. 5, the amount of light (light) required for the plant to grow. It is possible to select whether to increase the light transmitting unit 22 or the power generation unit 21 depending on the adaptability and the light saturation point. For example, since tomatoes and melons require relatively strong light, the arrangement shown in FIG. 2 is preferable, and leaves and asparagus may have low light, so the arrangement shown in FIG. 5 increases the amount of power generation. Can be made to.
  • the solar cell module 2 of the above embodiment may be provided with a bypass diode in order to bypass the power generation unit 21 in which the current becomes difficult to flow due to the generation of shade or the like.

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  • Photovoltaic Devices (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

L'invention concerne un module de cellules solaires grâce avec lequel il est possible de générer de l'électricité au moyen de la lumière du soleil et d'assurer une quantité de lumière nécessaire. Ce module de cellules solaires (2) doit être installé sur un toit (11) ou un mur extérieur (12) formé de manière à inclure un matériau transparent (1b) d'une usine (1), le module de cellules solaires (2) ayant : une pluralité de parties de génération de puissance (21) qui génèrent de l'électricité lorsqu'elles sont soumises à la lumière du soleil ; et une pluralité de parties de transmission de lumière (22) qui laissent passer la lumière du soleil à travers elles. Les parties de génération de puissance (21) et les parties de transmission de lumière (22) sont agencées alternativement dans deux directions de sorte que des bords d'une partie de transmission de lumière (22) et d'une partie de génération de puissance (21) adjacentes l'une à l'autre se superposent partiellement.
PCT/JP2019/022485 2019-06-06 2019-06-06 Module de cellules solaires WO2020245967A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2019/022485 WO2020245967A1 (fr) 2019-06-06 2019-06-06 Module de cellules solaires
JP2021524590A JP7204910B2 (ja) 2019-06-06 2019-06-06 太陽電池モジュール

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2019/022485 WO2020245967A1 (fr) 2019-06-06 2019-06-06 Module de cellules solaires

Publications (1)

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WO2020245967A1 true WO2020245967A1 (fr) 2020-12-10

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PCT/JP2019/022485 WO2020245967A1 (fr) 2019-06-06 2019-06-06 Module de cellules solaires

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WO (1) WO2020245967A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150142813A (ko) * 2014-06-11 2015-12-23 주성엔지니어링(주) 태양 전지 모듈 및 이를 포함한 온실
KR20150142815A (ko) * 2014-06-11 2015-12-23 주성엔지니어링(주) 태양에너지 발전 지붕
CN105470323A (zh) * 2014-10-02 2016-04-06 盖志武 太阳能电池板的电池片的排列结构
CN205755972U (zh) * 2016-06-03 2016-12-07 深圳市创益科技发展有限公司 一种温度可调式光伏温室
JP2017145559A (ja) * 2016-02-15 2017-08-24 積水化学工業株式会社 太陽電池の取付具及び太陽電池の設置構造
CN107926382A (zh) * 2017-12-12 2018-04-20 天津云众创嬴科技有限公司 一种凸起脊式光伏太阳能农业大棚
CN208208771U (zh) * 2018-05-28 2018-12-07 苏州携创新能源科技有限公司 高透光伏组件及高透光建筑物

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20150142813A (ko) * 2014-06-11 2015-12-23 주성엔지니어링(주) 태양 전지 모듈 및 이를 포함한 온실
KR20150142815A (ko) * 2014-06-11 2015-12-23 주성엔지니어링(주) 태양에너지 발전 지붕
CN105470323A (zh) * 2014-10-02 2016-04-06 盖志武 太阳能电池板的电池片的排列结构
JP2017145559A (ja) * 2016-02-15 2017-08-24 積水化学工業株式会社 太陽電池の取付具及び太陽電池の設置構造
CN205755972U (zh) * 2016-06-03 2016-12-07 深圳市创益科技发展有限公司 一种温度可调式光伏温室
CN107926382A (zh) * 2017-12-12 2018-04-20 天津云众创嬴科技有限公司 一种凸起脊式光伏太阳能农业大棚
CN208208771U (zh) * 2018-05-28 2018-12-07 苏州携创新能源科技有限公司 高透光伏组件及高透光建筑物

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JP7204910B2 (ja) 2023-01-16
JPWO2020245967A1 (fr) 2020-12-10

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