JPH0446900A - Solar battery device for feeding peak electric power - Google Patents
Solar battery device for feeding peak electric powerInfo
- Publication number
- JPH0446900A JPH0446900A JP2154596A JP15459690A JPH0446900A JP H0446900 A JPH0446900 A JP H0446900A JP 2154596 A JP2154596 A JP 2154596A JP 15459690 A JP15459690 A JP 15459690A JP H0446900 A JPH0446900 A JP H0446900A
- Authority
- JP
- Japan
- Prior art keywords
- thermoelement
- solar battery
- solar cell
- electric power
- paddle
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000005679 Peltier effect Effects 0.000 abstract description 2
- 239000000758 substrate Substances 0.000 description 6
- 239000000615 nonconductor Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Photovoltaic Devices (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は人工衛星等に搭載する太陽電池装置に関し、特
に短時間の間に大電力を必要とする機器の電力負荷に適
合する太陽電池装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a solar battery device mounted on an artificial satellite, etc., and particularly to a solar battery device that is suitable for the power load of equipment that requires large amounts of power for a short period of time. Regarding.
従来、この種の太陽電池装置において、ピーク的に大電
力を必要とする場合は、太陽電池パドル（絶縁体の上に
太陽電池素子が平面上に配列され固定され、これら太陽
電池素子間に所定の配線がなされ太陽光よりの輻射エネ
ルギを所定の電気エネルギに変換出力する構成体）が発
生する電力の不足分を、主に別途衛星に搭載されている
バッテリの放電電力で補っていた。Conventionally, in this type of solar cell device, when a large peak power is required, solar cell paddles (solar cell elements are arranged and fixed on a plane on an insulator, and a predetermined space is placed between these solar cell elements) The shortfall in the power generated by the system (a component that converts and outputs radiant energy from sunlight into predetermined electrical energy) was mainly compensated for by the discharged power of a battery separately mounted on the satellite.
上述した従来の太陽電池の出力電力は周知のように、は
ぼ、この太陽電池の周囲温度に逆比例して変化する。As is well known, the output power of the conventional solar cell described above varies inversely with the ambient temperature of the solar cell.
すなわち、日照時は太陽光の輻射熱によって太陽電池パ
ドルの温度が上昇し太陽電池素子の温度も上昇するため
、この太陽電池パドルの発生する電力は低下する。That is, during sunshine hours, the temperature of the solar cell paddle increases due to the radiant heat of sunlight, and the temperature of the solar cell element also rises, so the power generated by this solar cell paddle decreases.
特に日照時間が長い場合は前述の電力の低下傾向が著し
く、たとえば、摂氏５０度での太陽電池による太陽光の
輻射エネルギから電気エネルギヘの変換効率は摂氏０度
の時のこの太陽電池の電力への変換効率にくらべて約１
／２に低下してしまい、衛星上で材料を加工するような
実験を行う場合に必要とされるような、短時間中におけ
る大電力（ピーク電力）の要求に対応するには、バッテ
リが蓄積している電気エネルギが上述の短時間中に大電
力を供給するのに必要なエネルギを有していてもそれだ
けではピーク電力を供給するとき大電流が流れるため、
バッテリの内部抵抗によってバッテリの出力電圧が低下
してしまうので、このような大電流を供給するときにも
出力電圧の低下を来たさない内部抵抗の小さい大容量の
バッテリを用いるか、太陽電池パドルの受光面積を大と
し、前述のピーク電力に対応した電力を供給する以外に
方法はなかった。In particular, when the sunshine hours are long, the above-mentioned tendency for power to decrease is remarkable. For example, the efficiency of converting sunlight radiant energy into electrical energy by a solar cell at 50 degrees Celsius is the same as the power of this solar cell at 0 degrees Celsius. 1 compared to the conversion efficiency of
/2, and the battery needs to accumulate to meet the demand for high power (peak power) during short periods of time, such as is required when conducting experiments such as processing materials on a satellite. Even if the current electrical energy has the energy necessary to supply a large amount of power during the short time mentioned above, this alone will cause a large current to flow when supplying peak power.
Since the battery's output voltage will drop due to the battery's internal resistance, you should use a large capacity battery with low internal resistance that will not cause a drop in output voltage even when supplying such a large current, or use solar cells. There was no other way than to increase the light-receiving area of the paddle and supply power corresponding to the peak power mentioned above.
しかしながら、このようにバッテリの容量を大きくする
と、必然的にバッテリの容積および重量が増加するとい
う問題点があり、また、このようなピーク電力に適合す
るように、太陽電池パドルの面積を広げることも考えら
れるが、太陽電池パドルの容積、重量が極度に大となり
、小形化、軽量化が要求される人工衛星に対しては実用
的ではないという問題点があった。However, increasing the capacity of the battery in this way inevitably increases the volume and weight of the battery, and it is also necessary to increase the area of the solar array paddle to accommodate such peak power. However, the problem was that the volume and weight of the solar array paddle would be extremely large, making it impractical for artificial satellites that require smaller size and lighter weight.
本発明の目的は、太陽電池パドルが高温環境中に長時間
曝されても発生電力の低下量が少な〈従来よりも小容積
の太陽電池または小容量のバッテリでも所要のピーク電
力に対処できる太陽電池装置を提供することにある。The purpose of the present invention is to create a solar cell that can handle the required peak power even with a smaller-volume solar cell or a smaller-capacity battery than conventional solar cells, which reduces the amount of power generated even if the solar array paddle is exposed to a high-temperature environment for a long time. The purpose of the present invention is to provide a battery device.
本発明のピーク電力供給太陽電池装置はバッテリと太陽
電池パドルと前記太陽電池パドルからの電力を前記バッ
テリと負荷に供給制御する制御部とを有し人工衛星に搭
載される太陽電池装置において、前記太陽電池パドルの
基板の背面に配置された前記太陽電池パドルを冷却する
サーモエレメントと、指令信号によって前記サーモエレ
メントに電力を供給する前記制御部とを有することを特
徴とする。The peak power supply solar cell device of the present invention includes a battery, a solar cell paddle, and a control unit that controls the supply of electric power from the solar cell paddle to the battery and a load, and the solar cell device is mounted on an artificial satellite. The solar cell paddle is characterized by having a thermoelement that cools the solar cell paddle arranged on the back side of the substrate of the solar cell paddle, and the control section that supplies power to the thermoelement in response to a command signal.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の構成図、第２図は第１図中
の太陽電池パドルの部分断面図である。FIG. 1 is a configuration diagram of an embodiment of the present invention, and FIG. 2 is a partial sectional view of the solar cell paddle in FIG. 1.
太陽電池パドル１上の太陽電池素子１０に大陽光Ｓが入
射すると太陽電池素子１０は大陽光Ｓの輻射エネルギを
電気エネルギに変換して制御回路２に出力する、制御回
路２は太陽電池素子１０から供給された電気エネルギの
電圧をほぼ一定になるように制御し、負荷４に必要電力
を供給し、残りをバッテリ３に供給する。When large sunlight S enters the solar cell element 10 on the solar cell paddle 1, the solar cell element 10 converts the radiant energy of the large sunlight S into electrical energy and outputs it to the control circuit 2. The voltage of the electrical energy supplied from the power source is controlled to be almost constant, and the necessary power is supplied to the load 4, and the remaining power is supplied to the battery 3.
バッテリ３は太陽電池素子１０から出力する電力が負荷
４で消費される電力より大なるとき余剰電力を充電し、
また、負荷４で消費される電力が太陽電池素子１０から
供給される電力よりも多きいとき、不足分の電力を制御
回路２を介して負荷４に供給する。The battery 3 is charged with surplus power when the power output from the solar cell element 10 is greater than the power consumed by the load 4,
Further, when the power consumed by the load 4 is greater than the power supplied from the solar cell element 10, the insufficient power is supplied to the load 4 via the control circuit 2.
太陽電池バドル１の太陽光Ｓの受光面側には所定数の太
陽電池素子１０が相互に導電体配線１４により結線され
基板１１に対して電気絶縁体１５を介して接着剤１３に
よって固着されている。A predetermined number of solar cell elements 10 are connected to each other by conductor wiring 14 on the sunlight receiving surface side of the solar cell paddle 1 and are fixed to the substrate 11 via an electrical insulator 15 with an adhesive 13. There is.
これらの太陽電池素子１０からの太陽電池出力は制御回
路２に加えられる。Solar cell outputs from these solar cell elements 10 are applied to a control circuit 2.
また、基板１１の裏面には電気絶縁体１’３を介して接
着剤１３によってサーモエレメント１２が必要数固着配
置され、互いに導電体配線１４で結線されている。Further, a required number of thermoelements 12 are fixedly arranged on the back surface of the substrate 11 with an adhesive 13 via an electrical insulator 1'3, and are connected to each other with conductor wiring 14.
サーモエレメント１２には制御回路２からのサーモエレ
メント制御信号が加えられる。A thermoelement control signal from the control circuit 2 is applied to the thermoelement 12 .
前述のサーモエレメント１２には、たとえば、電流を一
方向に流すとサーモエレメント１２の一端の温度が降下
し他端の温度が上昇するいわゆるペルチェ効果を利用し
た素子を使用すればよい。For example, an element utilizing the so-called Peltier effect, in which the temperature at one end of the thermoelement 12 decreases and the temperature at the other end increases when current is passed in one direction, may be used as the thermoelement 12 described above.
このようなサーモエレメント１２に電流を流したとき、
温度が降下する端部を基板１１に近い方へ、また、サー
モエレメント１２の他端が上述の太陽電池パドルの裏面
の外方に位置するように配置する。When a current is passed through such a thermoelement 12,
The thermoelement 12 is arranged so that the end where the temperature decreases is located closer to the substrate 11, and the other end of the thermoelement 12 is located outside the back surface of the solar cell paddle.
なお、前述した基板が電気絶縁体であれば電気絶縁体１
５は省略することができる。Note that if the above-mentioned substrate is an electrical insulator, the electrical insulator 1
5 can be omitted.
このようなサーモエレメント１２によって各太陽電池素
子１０を冷却するのに必要な電力は通常この太陽電池素
子１０が太陽の輻射エネルギより変換する電力より少な
いか同程度である。The power required to cool each solar cell element 10 by such a thermoelement 12 is typically less than or equal to the power that the solar cell element 10 converts from solar radiant energy.
通常、太陽電池素子１０は太陽光Ｓの輻射エネルギによ
り熱せられ温度が摂氏４０度またはそれ以上となる。Normally, the solar cell element 10 is heated by the radiant energy of sunlight S, and its temperature reaches 40 degrees Celsius or more.
予め短時間ではあるが大電力すなわち、ピーク電力を必
要とすることが予想される場合には、前もって前述のサ
ーモエレメント１２に所用の電力を供給し太陽電池素子
１０を冷却するための制御信号Ｃが地上からこの太陽電
池パドルを搭載している衛星のもつ受信機を介して制御
回路２に送出されるか、あるいは、衛星内のプログラム
された他の装置から送出される。この制御信号Ｃが制御
回路２に加えられると制御回路２から所定の電流がサー
モエレメント制御信号としてサーモエレメント１２に送
出され、このサーモエレメント１２が冷却され、また、
間接的に太陽電池素子１０も基板１１を介して冷却され
る。If it is anticipated that a large amount of power, ie, peak power, will be required for a short period of time, a control signal C for supplying the necessary power to the thermo-element 12 and cooling the solar cell element 10 in advance. is transmitted from the ground to the control circuit 2 via the receiver of the satellite carrying this solar array paddle, or from another programmed device within the satellite. When this control signal C is applied to the control circuit 2, a predetermined current is sent from the control circuit 2 to the thermoelement 12 as a thermoelement control signal, and the thermoelement 12 is cooled.
The solar cell element 10 is also indirectly cooled via the substrate 11.
上述のピーク電力を負荷４に供給を開始する時刻に先立
ってサーモエレメント１２にサーモエレメント制御信号
の供給を開始する時刻までの時間は、この時間内に十分
太陽電池素子１０が所定の温度以下に冷却されるように
選定しておく。Prior to the time when the above-mentioned peak power is started to be supplied to the load 4, the time until the time when the supply of the thermo-element control signal to the thermo-element 12 is started is such that the temperature of the solar cell element 10 is sufficiently lowered to below a predetermined temperature within this time. Select so that it is cooled.
上述のサーモエレメント１２に供給するサーモエレメン
ト制御信号の供給の終了時刻は負荷４に供給するピーク
電力を停止する時刻までとすればよい。The end time of the supply of the thermoelement control signal to the thermoelement 12 described above may be set to the time when the peak power supplied to the load 4 is stopped.
また、サーモエレメント制御信号を断としてから太陽電
池素子１ｏの温度が上昇し、この温度上昇によって太陽
電池素子の電力変換効率が実用上無視できない状態に達
する迄の時間が長ければ、この時間だけ負荷４に供給す
るピーク電力の供給を停止する時刻に先立って上述のサ
ーモエレメント制御信号を早く停止することもできる。In addition, if the temperature of the solar cell element 1o rises after the thermoelement control signal is cut off, and it takes a long time for the power conversion efficiency of the solar cell element to reach a state that cannot be ignored in practical terms due to this temperature rise, then the load will be It is also possible to stop the above-mentioned thermoelement control signal earlier than the time when the supply of peak power supplied to 4 is stopped.
なお、サーモエレメント１２に供給するサーモエレメン
ト制御信号の停止も前述した指令信号Ｃによって行う。Note that the thermoelement control signal supplied to the thermoelement 12 is also stopped by the command signal C mentioned above.
以上説明したように本発明によれば、サーモエレメント
を用いて太陽電池素子の温度を一時的に低下させ、太陽
電池素子の太陽光の輻射エネルギから電気エネルギへの
変換効率を一時的に上昇させることによって、従来より
も小さな面積の太陽電池パドルと従来と同程度か従来よ
りも小容量のバッテリによって一時的に大電力を必要と
する負荷に対しても使用可能な太陽電池装置を実現する
ことができる。As explained above, according to the present invention, the temperature of the solar cell element is temporarily lowered using a thermoelement, and the conversion efficiency of the solar cell element from sunlight radiant energy to electrical energy is temporarily increased. By doing so, it is possible to realize a solar battery device that can be used even for loads that temporarily require large amounts of power, using solar battery paddles with a smaller area than conventional ones and batteries of the same or smaller capacity than conventional ones. I can do it.
第１図は本発明の一実施例の構成図、第２図は第１図の
太陽電池パドルの部分断面図である。
１・・・太陽電池パドル、２・・・制御回路、３・・・
バッテリ、４・・・負荷、１０・・・太陽電池素子、１
１・・・基板、１２・・・サーモエレメント、１３・・
・接着剤、１４・・・導電体配線、１５・・・電気絶縁
体。FIG. 1 is a configuration diagram of an embodiment of the present invention, and FIG. 2 is a partial sectional view of the solar cell paddle of FIG. 1. 1... Solar battery paddle, 2... Control circuit, 3...
Battery, 4... Load, 10... Solar cell element, 1
1... Board, 12... Thermoelement, 13...
- Adhesive, 14... Conductor wiring, 15... Electrical insulator.
Claims (1)
の電力を前記バッテリと負荷に供給制御する制御部とを
有し人工衛星に搭載される太陽電池装置において、前記
太陽電池パドルの基板の背面に配置された前記太陽電池
パドルを冷却するサーモエレメントと、指令信号によっ
て前記サーモエレメントに電力を供給する前記制御部と
を有することを特徴とする太陽電池装置。In a solar cell device mounted on an artificial satellite, the solar cell device includes a battery, a solar cell paddle, and a control unit that controls the supply of electric power from the solar cell paddle to the battery and a load. A solar cell device comprising: a thermoelement that cools the solar cell paddle; and a control section that supplies power to the thermoelement in response to a command signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2154596A JPH0446900A (en) | 1990-06-13 | 1990-06-13 | Solar battery device for feeding peak electric power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2154596A JPH0446900A (en) | 1990-06-13 | 1990-06-13 | Solar battery device for feeding peak electric power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446900A true JPH0446900A (en) | 1992-02-17 |
Family
ID=15587644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2154596A Pending JPH0446900A (en) | 1990-06-13 | 1990-06-13 | Solar battery device for feeding peak electric power |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446900A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007055462A1 (en) * | 2007-11-13 | 2009-05-20 | Adamidis, Antonius | Photovoltic system regulating system, involves thermally coupling Peltier-element with solar cell, cooling and/or heating cell by Peltier-element, and determining temperature of cell or region of cell by temperature sensor |
| DE102010019782A1 (en) | 2009-05-08 | 2010-12-16 | Ganss, Rolf | Arrangement for generating energy from solar radiation |
| DE102011051507A1 (en) * | 2011-04-21 | 2012-10-25 | Bpe E.K. | solar device |
-
1990
- 1990-06-13 JP JP2154596A patent/JPH0446900A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007055462A1 (en) * | 2007-11-13 | 2009-05-20 | Adamidis, Antonius | Photovoltic system regulating system, involves thermally coupling Peltier-element with solar cell, cooling and/or heating cell by Peltier-element, and determining temperature of cell or region of cell by temperature sensor |
| DE102010019782A1 (en) | 2009-05-08 | 2010-12-16 | Ganss, Rolf | Arrangement for generating energy from solar radiation |
| DE102011051507A1 (en) * | 2011-04-21 | 2012-10-25 | Bpe E.K. | solar device |
| WO2012143003A3 (en) * | 2011-04-21 | 2013-05-30 | Bpe E. K. | Solar device |
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