JP2016167935A - Solar cell device - Google Patents

Solar cell device Download PDF

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JP2016167935A
JP2016167935A JP2015047092A JP2015047092A JP2016167935A JP 2016167935 A JP2016167935 A JP 2016167935A JP 2015047092 A JP2015047092 A JP 2015047092A JP 2015047092 A JP2015047092 A JP 2015047092A JP 2016167935 A JP2016167935 A JP 2016167935A
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solar cell
light
installation surface
cell device
laid
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栄造 渡辺
Eizo Watanabe
栄造 渡辺
浩之 川村
Hiroyuki Kawamura
浩之 川村
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Silicon Plus Corp
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Silicon Plus Corp
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    • 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

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Abstract

PROBLEM TO BE SOLVED: To provide a solar cell device including a double-side incidence type solar cell element that reduces unevenness of received light intensity at a light receiving surface of rear surface of a solar cell panel.SOLUTION: The solar cell device includes: a solar cell panel 11, disposed by being inclined to an installation surface G; and a light reflection member 30, laid on the installation surface G.SELECTED DRAWING: Figure 2

Description

本発明は、太陽電池装置に関する。   The present invention relates to a solar cell device.

従来、両面入射型太陽電池素子は、光入射側の電極及び裏面側の電極を透明電極の構成にし、太陽電池素子の表裏から光を入射させるように構成されている。また、太陽電池パネルの裏面に表面と同様な強化ガラスを取り付け、裏側からの光も太陽電池セルに当たるようにした方式のものも知られている。これらの方式では、例えば、太陽電池パネルが設置面に対し所定の角度を有するように支持架台に取り付けられた陸置きの太陽電池装置の場合、支持架台の下方部の設置面に、太陽電池パネルの裏面側に光を反射するための光反射シートが設けられる（例えば、特許文献１参照）。   2. Description of the Related Art Conventionally, a double-sided incident solar cell element is configured such that a light incident side electrode and a back side electrode are configured as transparent electrodes, and light is incident from the front and back of the solar cell element. There is also known a method in which a tempered glass similar to the front surface is attached to the back surface of the solar cell panel so that light from the back side also hits the solar cell. In these systems, for example, in the case of a land-mounted solar cell device attached to a support frame so that the solar cell panel has a predetermined angle with respect to the installation surface, the solar cell panel A light reflecting sheet for reflecting light is provided on the back side of the sheet (for example, see Patent Document 1).

特開２０１４−１６５２９７号公報JP 2014-165297 A

ところで、支持架台に取り付けられた太陽電池パネルが、設置面に対し所定の角度を有する場合は、太陽電池パネルの上部と下部とでは、支持架台の下方部の設置面に設けた反射板との間隔が異なることから、太陽電池パネルの裏面の受光面までの間隔にばらつきが生じる。このため、受光面における受光強度のムラが大きくなるという問題がある。
本発明の目的は、両面入射型太陽電池素子を備える太陽電池装置において、太陽電池パネルの裏面の受光面における受光強度のムラを低減することにある。 By the way, when the solar cell panel attached to the support frame has a predetermined angle with respect to the installation surface, the upper and lower portions of the solar cell panel are connected to the reflector provided on the installation surface below the support frame. Since the intervals are different, there is a variation in the interval to the light receiving surface on the back surface of the solar cell panel. For this reason, there is a problem that the unevenness of the received light intensity on the light receiving surface increases.
The objective of this invention is reducing a nonuniformity of the light reception intensity | strength in the light-receiving surface of the back surface of a solar cell panel in a solar cell apparatus provided with a double-sided incident type solar cell element.

本発明によれば、設置面に対して傾斜させて配置された太陽電池パネルと、前記設置面上に敷設された光反射部材と、を有することを特徴とする太陽電池装置が提供される。
ここで、前記光反射部材が、粉砕石英片から構成されることが好ましい。 According to the present invention, there is provided a solar cell device comprising a solar cell panel arranged to be inclined with respect to an installation surface, and a light reflecting member laid on the installation surface.
Here, it is preferable that the light reflecting member is composed of a crushed quartz piece.

本発明によれば、両面入射型太陽電池素子を備える太陽電池装置において、太陽電池パネルの裏面の受光面における受光強度のムラが低減する。   ADVANTAGE OF THE INVENTION According to this invention, in a solar cell apparatus provided with a double-sided incident type solar cell element, the nonuniformity of the received light intensity in the light-receiving surface of the back surface of a solar cell panel reduces.

本実施の形態が適用される太陽電池装置の一例を説明する図である。It is a figure explaining an example of the solar cell apparatus with which this Embodiment is applied. 図１の太陽電池装置の断面の一例を説明する図である。It is a figure explaining an example of the cross section of the solar cell apparatus of FIG.

以下、本発明の実施の形態について詳細に説明する。尚、本発明は、以下の実施の形態に限定されるものではなく、その要旨の範囲内で種々変形して実施することが出来る。また、使用する図面は本実施の形態を説明するためのものであり、実際の大きさを表すものではない。   Hereinafter, embodiments of the present invention will be described in detail. The present invention is not limited to the following embodiments, and various modifications can be made within the scope of the invention. The drawings used are for explaining the present embodiment and do not represent the actual size.

（太陽電池装置）
図１は、本実施の形態が適用される太陽電池装置の一例を説明する図である。図１に示すように、複数組の太陽電池アレイ１０，２０が、平地などの設置面上に設置される。太陽電池アレイ１０，２０のそれぞれには、両面入射型太陽電池素子を複数個備えた太陽電池パネル１１，２１が支持架台１２，２２に取り付けられている。それぞれの太陽電池パネル１１，２１は電気的に接続されている。
太陽電池パネル１１，２１の大きさは特に限定されないが、通常、幅９５ｃｍ〜１０５ｃｍ、長さ１３０ｃｍ〜２００ｃｍの範囲で決められる。本実施の形態では、太陽電池パネル１１，２１の大きさは、幅１００ｃｍ×長さ１３３．８ｃｍ、または、幅１００ｃｍ×長さ１６５．４ｃｍである。 (Solar cell device)
FIG. 1 is a diagram illustrating an example of a solar cell device to which the present embodiment is applied. As shown in FIG. 1, a plurality of sets of solar cell arrays 10 and 20 are installed on an installation surface such as a flat ground. In each of the solar cell arrays 10 and 20, solar cell panels 11 and 21 including a plurality of double-sided incident type solar cell elements are attached to the support bases 12 and 22. Each solar cell panel 11 and 21 is electrically connected.
Although the magnitude | size of the solar cell panels 11 and 21 is not specifically limited, Usually, it is determined in the range of width 95cm-105cm and length 130cm-200cm. In the present embodiment, the size of the solar cell panels 11 and 21 is 100 cm wide × 133.8 cm long, or 100 cm wide × 165.4 cm long.

支持架台１２，２２は、前側基礎１４ａ，２４ａ上に建てられた前側脚部１３ａ，２３ａと、後側基礎１４ｂ，２４ｂ上に建てられた後側脚部１３ｂ，２３ｂを有している。前側脚部１３ａ，２３ａの長さと後側脚部１３ｂ，２３ｂの長さとは、支持架台１２，２２上に取り付けられた太陽電池パネル１１，２１が、太陽電池装置を設置する地点の緯度、経度、使用目的、システム等に応じて、所定の角度で傾斜して配置されるように決められている。図１に示すように、本実施の形態では、設置面に対して所定の角度で傾斜して配置されるように、前側脚部１３ａ，２３ａの長さが後側脚部１３ｂ，２３ｂの長さより短くなっている。   The support bases 12 and 22 have front legs 13a and 23a built on the front foundations 14a and 24a, and rear legs 13b and 23b built on the rear foundations 14b and 24b. The lengths of the front legs 13a and 23a and the lengths of the rear legs 13b and 23b are the latitude and longitude of the point where the solar cell panels 11 and 21 mounted on the support bases 12 and 22 install the solar cell device. Depending on the purpose of use, system, etc., it is determined to be inclined at a predetermined angle. As shown in FIG. 1, in the present embodiment, the lengths of the front leg portions 13a and 23a are the lengths of the rear leg portions 13b and 23b so as to be inclined at a predetermined angle with respect to the installation surface. It is shorter than this.

支持架台１２，２２の前側脚部１３ａ，２３ａの長さと、後側脚部１３ｂ，２３ｂの長さは特に限定されない。例えば、本実施の形態のように、複数組の太陽電池アレイ１０，２０が、平地等に設置された陸置きの太陽電池装置で採用されている３段システムの場合、前側脚部１３ａ，２３ａの長さは、通常、５０ｃｍ〜１００ｃｍの範囲であり、後側脚部１３ｂ，２３ｂの長さは、２００ｃｍ〜３００ｃｍの範囲である。また、通常、後側脚部１３ｂ，２３ｂの長さは、前側脚部１３ａ，２３ａの長さの３倍〜４倍となるように決められている。
さらに、支持架台１２，２２上に取り付けられた太陽電池パネル１１，２１と設置面との角度は、本実施の形態では、通常、１５度〜３０度の範囲で決められている。 The lengths of the front legs 13a and 23a of the support bases 12 and 22 and the lengths of the rear legs 13b and 23b are not particularly limited. For example, as in this embodiment, in the case of a three-stage system in which a plurality of sets of solar cell arrays 10 and 20 are employed in a land-mounted solar cell device installed on a flat ground or the like, the front legs 13a and 23a Is usually in the range of 50 cm to 100 cm, and the lengths of the rear legs 13b and 23b are in the range of 200 cm to 300 cm. In general, the length of the rear legs 13b and 23b is determined to be 3 to 4 times the length of the front legs 13a and 23a.
Further, in the present embodiment, the angle between the solar cell panels 11 and 21 mounted on the support bases 12 and 22 and the installation surface is usually determined in the range of 15 degrees to 30 degrees.

図２は、図１の太陽電池装置の断面の一例を説明する図である。図２に示すように、太陽電池パネル１１（２１）が取り付けられた支持架台１２（２２）の下方部の設置面Ｇ上には、光反射部材３０が敷設されている。支持架台１２（２２）の下方部の設置面Ｇ上に光反射部材３０を敷設することにより、太陽光と光反射部材３０からの反射光Ｒとを、両面入射型太陽電池素子に有効に入射させることができる。   FIG. 2 is a diagram illustrating an example of a cross section of the solar cell device of FIG. As shown in FIG. 2, the light reflection member 30 is laid on the installation surface G of the lower part of the support stand 12 (22) to which the solar cell panel 11 (21) is attached. By laying the light reflecting member 30 on the installation surface G below the support frame 12 (22), sunlight and the reflected light R from the light reflecting member 30 are effectively incident on the double-sided incident solar cell element. Can be made.

（光反射部材３０）
本実施の形態では、光反射部材３０として粉砕石英片を敷設している。粉砕石英片の大きさは特に限定されないが、通常、直径１ｃｍ〜５ｃｍの範囲が好ましい。粉砕石英片を敷設する範囲は、支持架台１２（２２）の下方部の設置面Ｇ上に限定されず、陸置きの太陽電池装置の周辺にも敷設することが好ましい。 (Light reflecting member 30)
In the present embodiment, a crushed quartz piece is laid as the light reflecting member 30. The size of the pulverized quartz piece is not particularly limited, but usually a diameter of 1 cm to 5 cm is preferable. The range in which the crushed quartz piece is laid is not limited to the installation surface G in the lower part of the support frame 12 (22), but is preferably laid around the land-mounted solar cell device.

光反射部材３０が敷設される範囲は特に限定されないが、本実施の形態では、支持架台１２（２２）の下方部の設置面Ｇ上、さらに、複数組の太陽電池アレイ１０，２０からなる太陽電池装置の端部の外周１ｍ〜３ｍ程度の範囲に敷設されている。
また、光反射部材３０が敷設される厚さは特に限定されないが、本実施の形態では５ｃｍ〜１０ｃｍ程度であり、設置面Ｇの表面が見えない程度に敷設されている。尚、光反射部材３０により、前側脚部１３ａ，２３ａを支える前側基礎１４ａ，２４ａと、後側脚部１３ｂ，２３ｂを支える後側基礎１４ｂ，２４ｂとが、埋もれる程度に光反射部材３０を敷設しても構わない。 Although the range in which the light reflecting member 30 is laid is not particularly limited, in the present embodiment, the solar cell composed of a plurality of sets of solar cell arrays 10 and 20 on the installation surface G below the support frame 12 (22). It is laid in the range of about 1 m to 3 m on the outer periphery of the end of the battery device.
Moreover, although the thickness in which the light reflection member 30 is laid is not specifically limited, in this Embodiment, it is about 5 cm-10 cm, and is laid so that the surface of the installation surface G cannot be seen. The light reflecting member 30 is laid so that the front foundations 14a and 24a supporting the front leg portions 13a and 23a and the rear foundations 14b and 24b supporting the rear leg portions 13b and 23b are buried by the light reflecting member 30. It doesn't matter.

粉砕石英片を敷設すると、石英の白色面により設置面Ｇに入射する太陽光が反射し、反射光Ｒが太陽電池パネル１１（２１）の裏面側からも入射する。これにより、太陽電池装置の発電量を上昇させることが可能となる。尚、石英の白色面により、太陽電池装置の設置面に入射する太陽光の２０％〜４０％が反射すると考えられる。   When the crushed quartz piece is laid, sunlight incident on the installation surface G is reflected by the white surface of quartz, and the reflected light R also enters from the back side of the solar cell panel 11 (21). Thereby, it becomes possible to raise the electric power generation amount of a solar cell apparatus. In addition, it is thought that 20 to 40% of the sunlight which injects into the installation surface of a solar cell apparatus is reflected with the white surface of quartz.

本実施の形態では、粉砕石英片を、例えば、シリコン結晶炉で使用される石英坩堝を所定の大きさになるように粉砕することにより調製している。石英坩堝は窒化物コーティングにより白色を成すので、光反射部材３０として好適である。また、石英坩堝は再利用先が限定されているため、その処分方法が少ないという問題に対し、一つの解決手段を提供することができる。さらに、陸置きの太陽電池装置の設置面Ｇに粉砕石英片を敷設すると、地面を照射する太陽光を遮ることが出来るので、雑草等の繁殖を防ぐ防草効果も得ることができる。
尚、光反射部材３０の他の例としては、例えば、大理石、石灰石等の白色鉱石、帆立貝等の貝殻等も使用可能である。 In the present embodiment, the pulverized quartz piece is prepared, for example, by pulverizing a quartz crucible used in a silicon crystal furnace to a predetermined size. The quartz crucible is white as a result of the nitride coating, and thus is suitable as the light reflecting member 30. In addition, since quartz crucibles are limited in reuse destinations, it is possible to provide one solution to the problem that there are few disposal methods. Furthermore, when a crushed quartz piece is laid on the installation surface G of a land-mounted solar cell device, the sunlight that irradiates the ground can be blocked, so that a herbicidal effect that prevents the growth of weeds and the like can be obtained.
In addition, as another example of the light reflection member 30, for example, white ore such as marble and limestone, shells such as scallops, and the like can be used.

（両面入射型太陽電池素子）
本実施の形態で使用する両面入射型太陽電池素子の構造は、両面受光可能なものであれば特に限定されない。例えば、公知の以下の構造のものが挙げられる。
（１）両面受光型発電セルを、両面から２枚の透明な板状体（例えば、強化ガラス板等）で挟み込んで封着した太陽電池パネル。
（２）２枚の片面受光型発電セルを、受光面を外側にして背中合わせに重ね、両面から２枚の透明な板状体で挟み込んで封着した太陽電池パネル。
（３）２枚の片面受光型の太陽電池モジュール（太陽電池パネル）を、板状の支持部材を介して背中合わせにして一体化した太陽電池パネル。 (Double-sided solar cell element)
The structure of the double-sided incident solar cell element used in the present embodiment is not particularly limited as long as it can receive light on both sides. For example, the following structures are known.
(1) A solar battery panel in which a double-sided light-receiving power generation cell is sandwiched and sealed between two transparent plates (for example, a tempered glass plate) from both sides.
(2) A solar battery panel in which two single-sided light-receiving power generation cells are stacked back-to-back with the light-receiving surfaces on the outside, and sandwiched and sealed between two transparent plates from both sides.
(3) A solar cell panel in which two single-sided light receiving solar cell modules (solar cell panels) are integrated back to back via a plate-like support member.

１０，２０…太陽電池アレイ、１１，２１…太陽電池パネル、１２，２２…支持架台、１３ａ，２３ａ…前側脚部、１３ｂ，２３ｂ…後側脚部、１４ａ，２４ａ…前側基礎、１４ｂ，２４ｂ…後側基礎、３０…光反射部材、Ｇ…設置面、Ｒ…反射光 DESCRIPTION OF SYMBOLS 10,20 ... Solar cell array, 11, 21 ... Solar cell panel, 12, 22 ... Support stand, 13a, 23a ... Front side leg part, 13b, 23b ... Rear side leg part, 14a, 24a ... Front side foundation, 14b, 24b ... rear foundation, 30 ... light reflecting member, G ... installation surface, R ... reflected light

Claims (2)

設置面に対して傾斜させて配置された太陽電池パネルと、
前記設置面上に敷設された光反射部材と、
を有することを特徴とする太陽電池装置。 A solar panel arranged to be inclined with respect to the installation surface;
A light reflecting member laid on the installation surface;
A solar cell device comprising: 前記光反射部材が、粉砕石英片から構成されることを特徴とする請求項１に記載の太陽電池装置。   The solar cell device according to claim 1, wherein the light reflecting member is composed of a crushed quartz piece.
JP2015047092A 2015-03-10 2015-03-10 Solar cell device Pending JP2016167935A (en)

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CN108418523A (en) * 2018-02-28 2018-08-17 江苏鼎阳绿能电力有限公司 The solar panels holder of automatic tracks sunlight
CN108880457A (en) * 2018-07-30 2018-11-23 安徽旭能电力股份有限公司 A kind of contraction drawing and pulling type solar energy light filling plate
JP2020054096A (en) * 2018-09-26 2020-04-02 株式会社熊谷組 Solar power generation device, and solar power generation system using the same
JP7066587B2 (en) 2018-09-26 2022-05-13 株式会社熊谷組 Solar power generation system using solar power generation equipment
KR20210101407A (en) * 2020-02-10 2021-08-19 강봉석 Light reflection security mat device of double-sided module photovoltaic power plant for off-site
KR102332247B1 (en) * 2020-02-10 2021-12-01 강봉석 Light reflection security mat device of double-sided module photovoltaic power plant for off-site
KR20210107987A (en) * 2020-02-24 2021-09-02 주식회사 세기종합환경 Photovoltaic apparatus
KR102373237B1 (en) * 2020-02-24 2022-03-17 (주)세기종합환경 Photovoltaic apparatus
WO2023027206A1 (en) * 2021-08-24 2023-03-02 주식회사 세기종합환경 Photovoltaic power generating apparatus

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