WO2023073961A1 - Panneau photovoltaïque composite - Google Patents

Panneau photovoltaïque composite Download PDF

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Publication number
WO2023073961A1
WO2023073961A1 PCT/JP2021/040145 JP2021040145W WO2023073961A1 WO 2023073961 A1 WO2023073961 A1 WO 2023073961A1 JP 2021040145 W JP2021040145 W JP 2021040145W WO 2023073961 A1 WO2023073961 A1 WO 2023073961A1
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WO
WIPO (PCT)
Prior art keywords
photovoltaic panel
composite
photovoltaic
panel
power generation
Prior art date
Application number
PCT/JP2021/040145
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English (en)
Japanese (ja)
Inventor
信明 小松
朋子 伊藤
隆 中馬
真千子 若林
Original Assignee
国際先端技術総合研究所株式会社
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.)
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Application filed by 国際先端技術総合研究所株式会社 filed Critical 国際先端技術総合研究所株式会社
Priority to PCT/JP2021/040145 priority Critical patent/WO2023073961A1/fr
Publication of WO2023073961A1 publication Critical patent/WO2023073961A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/20—Light-sensitive devices
    • 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
    • H01L31/043—Mechanically stacked PV cells

Definitions

  • the present invention relates to composite photovoltaic panels.
  • Photovoltaic power generation occupies an important position as one of renewable energies.
  • the problem with photovoltaic power generation is that it requires a large installation area, so the amount of power generated per unit area is low.
  • Another problem with photovoltaic power generation is that the amount of power generated is unstable and easily influenced by natural conditions such as the weather.
  • monocrystalline silicon solar cells, polycrystalline silicon solar cells, amorphous silicon solar cells, CIS solar cells, and HIT solar cells are used as power generation elements, the amount of power generated is large even with changes in sunlight. Change is a problem.
  • an object of the present invention is to provide a more stable photovoltaic power generation facility by improving the power generation efficiency of the power generation facility.
  • one of the representative composite photovoltaic panels of the present invention is A composite photovoltaic panel in which a first photovoltaic panel and a second photovoltaic panel are integrally superimposed, wherein the first photovoltaic panel is a transparent photovoltaic panel; wherein said second photovoltaic panel is an opaque photovoltaic panel; In the first photovoltaic panel and the second photovoltaic panel, the respective power generation regions and wiring regions overlap each other in plan view.
  • FIG. 1 is a schematic cross-sectional view of the composite photovoltaic panel of the first embodiment.
  • FIG. 2 is a cross-sectional view of the transparent photovoltaic panel 102 in the first embodiment.
  • FIG. 3 is a diagram for explaining the layout relationship between the power generation area and the wiring area.
  • FIG. 4 is a diagram for explaining the arrangement relationship between the power generation area and the wiring area.
  • FIG. 5 is a cross-sectional view of the composite photovoltaic panel of the first embodiment.
  • FIG. 6 is a diagram showing spectral absorption characteristics of a transparent photovoltaic panel.
  • FIG. 7 is a diagram showing changes in output current with respect to illuminance.
  • FIG. 8 is an enlarged view showing changes in output current with respect to illuminance.
  • FIG. 1 is a schematic cross-sectional view of the composite photovoltaic panel of the first embodiment.
  • FIG. 2 is a cross-sectional view of the transparent photovoltaic panel 102 in the first embodiment.
  • FIG. 9 is a diagram showing changes in surface temperature of an inorganic photovoltaic panel.
  • FIG. 10 is a diagram showing the effect of temperature rise on power generation.
  • FIG. 11 is a cross-sectional view of the composite photovoltaic panel of the second embodiment.
  • FIG. 12 is a cross-sectional view of the composite photovoltaic panel of the third embodiment.
  • a transparent photovoltaic panel means a photovoltaic panel composed of photovoltaic elements in which particles of SiO2 perform photovoltaics.
  • the wavelength of the electromagnetic wave that causes the transparent photovoltaic panel to generate power is not limited to the visible light range, and includes a wide wavelength range from infrared light to ultraviolet light.
  • the light source for the photovoltaic panel to generate electricity is not limited to sunlight, and includes light sources of all intensities, including artificial light sources.
  • the transparent photovoltaic panel includes those that generate power by indoor weak light sources, infrared rays, etc., including fluorescent lamps.
  • the opaque inorganic photovoltaic panel includes crystalline silicon solar cells, amorphous silicon solar cells, polycrystalline silicon solar cells, group III-V multijunction solar cells, dye-sensitized solar cells, means perovskite solar cell, organic thin film solar cell.
  • FIG. 1 is a schematic cross-sectional view of the composite photovoltaic panel of the first embodiment.
  • a transparent photovoltaic panel 102 is installed directly above the light receiving surface of an inorganic photovoltaic panel 101 via a space.
  • FIG. 2 is a cross-sectional view of the transparent photovoltaic panel 102 in the first embodiment.
  • a transparent substrate 1 to which a transparent conductive film 3 is attached and a transparent substrate 2 to which a transparent conductive film 4 is attached are held facing each other with the transparent conductive film sandwiched therebetween.
  • a metal oxide film 5 is provided on the transparent conductive film 3 .
  • a Pt film 6 is formed on the transparent conductive film 4, and above the Pt film 6, a particle layer 7 of SiO 2 serving as a photovoltaic layer is provided.
  • An electrolyte 10 is sealed between the metal oxide film 5 and the particle layer 7 of SiO 2 .
  • a sealing material (not shown) is provided in the peripheral portion between the transparent substrate 1 and the transparent substrate 2 which are arranged to face each other.
  • the transparent substrates 1 and 2 may be plastic or glass as long as they are made of a light-transmitting material, but glass is suitable.
  • the transparent conductive films 3 and 4 may be made of an indium-tin-based transparent conductive material such as ITO, FTO, IZO, or IWO. may be configured in combination.
  • the metal oxide layer 5 may be any material as long as it is transparent in a film state and exhibits the characteristics of an n-type semiconductor, such as TiO 2 , SnO 2 and ZnO.
  • the electrolyte one used in general dye-sensitized solar cells is used.
  • FIG. 3 is an explanatory view showing a partially enlarged corner of the transparent photovoltaic panel 102.
  • the outer circumference of the transparent conductive panel 102 is surrounded by a frame 25 made of aluminum or the like, and the power generation area 20 is arranged inside the frame 25 .
  • a wiring area 21 is provided around the power generation area 20 .
  • FIG. 4 is an explanatory diagram showing a partially enlarged corner of the inorganic photovoltaic panel 101.
  • the outer circumference of the inorganic photovoltaic panel 101 is surrounded by a frame 35 made of aluminum or the like, and the power generation region 30 is arranged inside the frame 35 .
  • a wiring area 31 is provided around the power generation area 30 .
  • the sizes and positions of the power generation regions 20 and 30 and the wiring regions 21 and 31 are matched, and the transparent photovoltaic panel 102 and the inorganic photovoltaic panel 101 are superimposed. In practice, these regions are arranged so as to overlap each other in plan view.
  • planar view refers to the case where either the transparent photovoltaic panel 102 or the inorganic photovoltaic panel 101 is viewed from a distance above the light receiving surface of the transparent photovoltaic panel 102 or the inorganic photovoltaic panel 101 .
  • the transparent photovoltaic panel 102 is provided with a mount 42, and the inorganic photovoltaic panel 101 is also attached with a mount 41. By connecting these mounts, the composite photovoltaic panel 100 can be obtained. .
  • a gap is provided between the transparent photovoltaic panel 102 and the inorganic photovoltaic panel 101, and has a shape that facilitates the dissipation of heat generated in the inorganic photovoltaic panel 101, as will be described later.
  • the composite photovoltaic power generation panel 100 is viewed from the irradiation direction of sunlight, the power generation regions 20 and 30 and the wiring regions 21 and 31 are arranged so as to overlap each other.
  • the transparent photovoltaic panel 102 has a high transmittance in the visible light region (380-780 nm) and a high absorptivity in the near-infrared region (780-2500 nm).
  • the transparent photovoltaic panel 102 has a visible light transmittance of 60% or more, has an absorption of 10% or more in the infrared region, and transmits the wavelength region that contributes to the power generation of the inorganic photovoltaic panel 101. It can be seen that power is generated in other wavelength regions.
  • FIG. 7 shows changes in output current with respect to illuminance for a crystalline silicon photovoltaic panel and a transparent photovoltaic panel in which the low illuminance region of FIG. 7 is enlarged.
  • the output current value reverses at about 7500 lux, and it can be seen that the output current value of the transparent photovoltaic panel is higher at illuminances below that.
  • the transparent photovoltaic power generation panel of the first embodiment mainly generates power during the time when the sun is shaded or the time of sunset, and during the time when the sun shines during the day.
  • crystalline silicon photovoltaic panels will mainly generate electricity.
  • the surface temperature of a single crystalline silicon photovoltaic panel (inorganic photovoltaic panel) and the configuration of the present invention (transparent photovoltaic power generation on the sunlight incident side of the crystalline silicon photovoltaic panel) 1 shows data comparing the surface temperature of a crystalline silicon photovoltaic power generation panel in a configuration in which a panel is provided.
  • the horizontal axis is the sunlight irradiation time, and the illuminance at this time was about 80,000 lux. It can be seen that the surface temperature rise in the first embodiment is suppressed as compared with the rise in surface temperature of the crystalline silicon-based photovoltaic panel alone.
  • the transparent photovoltaic panel absorbs wavelengths in the infrared region, which are originally converted into heat, as shown in the spectral spectrum of FIG.
  • the surface temperature of the inorganic photovoltaic panel rises sharply as the sunlight irradiation time elapses. It can be seen that the inorganic photovoltaic panel can suppress the increase in surface temperature to a considerable extent.
  • a composite photovoltaic panel 200 of FIG. 11 is a cross-sectional view of the composite photovoltaic panel according to the second embodiment.
  • the second embodiment differs from the first embodiment in that the light receiving surface of the transparent photovoltaic panel of the first embodiment is reversed.
  • differences from the above-described first embodiment will be mainly described, and the same or equivalent components will be denoted by the same reference numerals, and descriptions thereof will be simplified or omitted.
  • a transparent photovoltaic panel 103 which is the upside down of the transparent photovoltaic panel 102 of the first embodiment shown in FIG. ing.
  • the transparent photovoltaic panel 103 transmits light in the wavelength range that contributes to the power generation of the inorganic photovoltaic panel 101, and can generate power in other wavelength ranges. , effects similar to those of the first embodiment can be obtained.
  • a composite photovoltaic power generation panel 300 of FIG. 12 is a cross-sectional view of the composite photovoltaic power generation panel according to the third embodiment.
  • the third embodiment differs from the first embodiment in that the pedestals 41 and 42 of the first embodiment are configured to efficiently dissipate heat generated from the inorganic photovoltaic panel.
  • differences from the above-described first embodiment will be mainly described, and the same or equivalent components will be denoted by the same reference numerals, and descriptions thereof will be simplified or omitted.
  • the mounts 41 and 42 of the first embodiment are made of a material having high thermal conductivity, such as an aluminum member, an aluminum alloy member, a copper member, or copper, in order to improve heat dissipation. It consists of alloy members and other metal members.
  • the material of the mount is not limited to a metal material, and includes all members having thermal conductivity.
  • an air inlet and an air outlet are provided in the space between the inorganic photovoltaic panel 101 and the transparent photovoltaic panel 102 to dissipate heat to the outside through the air.
  • a fan may be provided.
  • the mounts 41 and 42 may be provided with fins for heat dissipation. In this way, by efficiently dissipating heat from the inorganic photovoltaic panel, the power generation efficiency of the composite photovoltaic panel can be further improved.
  • the inorganic photovoltaic panel 101 and the transparent photovoltaic panel 102 may be brought into close contact with each other, and the two panels may be fixed by a frame made of a highly thermally conductive material.
  • the photovoltaic device of the present invention can be realized not only by creating a new composite photovoltaic panel, but also by adding a transparent photovoltaic panel to an existing inorganic photovoltaic device. In this case, it is possible to utilize the existing place for photovoltaic power generation and the mount for installation, so it is possible to expect a significant improvement in power generation efficiency at low cost.

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

Abstract

La présente invention propose un dispositif photovoltaïque dans lequel des panneaux photovoltaïques sont configurés sous la forme d'une structure multicouche afin d'obtenir un rendement élevé de production d'énergie par unité de surface. À cet effet, la présente invention propose un panneau photovoltaïque composite (100) dans lequel un premier panneau photovoltaïque (102) et un second panneau photovoltaïque (101) sont conçus pour se chevaucher d'un seul tenant, ce panneau photovoltaïque composite (100) étant caractérisé en ce que le premier panneau photovoltaïque (102) est un panneau photovoltaïque transparent, le second panneau photovoltaïque (101) est un panneau solaire photovoltaïque non transparent, et les zones de production d'énergie (20, 30) et les zones de câblage (21, 31) du premier panneau photovoltaïque (102) et du second panneau photovoltaïque (101) se superposent dans une vue en plan.
PCT/JP2021/040145 2021-10-29 2021-10-29 Panneau photovoltaïque composite WO2023073961A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/040145 WO2023073961A1 (fr) 2021-10-29 2021-10-29 Panneau photovoltaïque composite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/040145 WO2023073961A1 (fr) 2021-10-29 2021-10-29 Panneau photovoltaïque composite

Publications (1)

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WO2023073961A1 true WO2023073961A1 (fr) 2023-05-04

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000156518A (ja) * 1998-09-17 2000-06-06 Nippon Telegr & Teleph Corp <Ntt> 太陽光発電システム
WO2005074039A1 (fr) * 2004-01-28 2005-08-11 Kyocera Corporation Module de batterie solaire et dispositif de generation photovoltaique
JP2009049247A (ja) * 2007-08-21 2009-03-05 Oki Electric Ind Co Ltd 複合型太陽電池
WO2012169530A1 (fr) * 2011-06-06 2012-12-13 国際先端技術総合研究所株式会社 Plaque en verre composite
US20130206219A1 (en) * 2010-08-06 2013-08-15 Juanita N. Kurtin Cooperative photovoltaic networks and photovoltaic cell adaptations for use therein
JP2015211197A (ja) * 2014-04-30 2015-11-24 大日本印刷株式会社 放熱構造体及び放熱構造体を備える太陽電池モジュール
WO2016017341A1 (fr) * 2014-07-28 2016-02-04 シャープ株式会社 Module de cellule solaire, procédé de fabrication de ce dernier, et système de génération d'énergie photovoltaïque solaire

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000156518A (ja) * 1998-09-17 2000-06-06 Nippon Telegr & Teleph Corp <Ntt> 太陽光発電システム
WO2005074039A1 (fr) * 2004-01-28 2005-08-11 Kyocera Corporation Module de batterie solaire et dispositif de generation photovoltaique
JP2009049247A (ja) * 2007-08-21 2009-03-05 Oki Electric Ind Co Ltd 複合型太陽電池
US20130206219A1 (en) * 2010-08-06 2013-08-15 Juanita N. Kurtin Cooperative photovoltaic networks and photovoltaic cell adaptations for use therein
WO2012169530A1 (fr) * 2011-06-06 2012-12-13 国際先端技術総合研究所株式会社 Plaque en verre composite
JP2015211197A (ja) * 2014-04-30 2015-11-24 大日本印刷株式会社 放熱構造体及び放熱構造体を備える太陽電池モジュール
WO2016017341A1 (fr) * 2014-07-28 2016-02-04 シャープ株式会社 Module de cellule solaire, procédé de fabrication de ce dernier, et système de génération d'énergie photovoltaïque solaire

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