JP2553327B2 - Solar power generator - Google Patents
Solar power generatorInfo
- Publication number
- JP2553327B2 JP2553327B2 JP60293961A JP29396185A JP2553327B2 JP 2553327 B2 JP2553327 B2 JP 2553327B2 JP 60293961 A JP60293961 A JP 60293961A JP 29396185 A JP29396185 A JP 29396185A JP 2553327 B2 JP2553327 B2 JP 2553327B2
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- Japan
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- output
- voltage
- storage battery
- converter
- solar cell
- Prior art date
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、太陽電池を用いる太陽光発電装置における
蓄電池の充電制御方式に関し、特に太陽電池からの直流
をDC/DCコンバータを介して蓄電池に充電するように構
成された太陽光発電装置における充電制御方式に関する
ものである。Description: TECHNICAL FIELD The present invention relates to a charging control method for a storage battery in a solar power generation device that uses a solar cell, and particularly direct current from the solar cell to the storage battery via a DC / DC converter. The present invention relates to a charging control method in a photovoltaic power generation device configured to charge.
第５図は、太陽光発電装置の概要を示すブロック図で
ある。太陽光発電装置は太陽電池１と、該太陽電池１で
発電された直流を充電する蓄電池３及び太陽電池１から
の電流をON・OFFするスイッチ２とを具備する。また、
蓄電池３は負荷４に接続される。FIG. 5 is a block diagram showing an outline of the solar power generation device. The solar power generation device includes a solar cell 1, a storage battery 3 that charges the direct current generated by the solar cell 1, and a switch 2 that turns on and off the current from the solar cell 1. Also,
The storage battery 3 is connected to the load 4.
上記のように構成された太陽光発電装置において、従
来の蓄電池３の充電方法は、蓄電池３の端子電圧が低い
時はスイッチ２をONとし、太陽電池１で発電する直流を
蓄電池３に充電し、蓄電池３が満充電に達すると、蓄電
池３の過充電を防止するためスイッチ２をOFFして蓄電
池３への充電を停止している。In the solar power generation device configured as described above, the conventional method of charging the storage battery 3 is to turn on the switch 2 when the terminal voltage of the storage battery 3 is low and charge the storage battery 3 with direct current generated by the solar battery 1. When the storage battery 3 reaches full charge, the switch 2 is turned off to prevent the storage battery 3 from being overcharged, and charging of the storage battery 3 is stopped.
しかしながら上記の如く従来の充電方法では、蓄電池
３が満充電でスイッチ２が開放されたとき、太陽電池１
で折角発電される電力は一切利用されないという問題点
がある。また、スイッチ２のON・OFFのみでは、蓄電池
３の端子電圧が負荷４に流れる電流の大きさにより変動
する等、電圧変動が大きいという問題点もあった。However, as described above, according to the conventional charging method, when the storage battery 3 is fully charged and the switch 2 is opened, the solar cell 1
There is a problem that the electric power generated in the above is not used at all. In addition, there is a problem in that the voltage fluctuation is large, for example, the terminal voltage of the storage battery 3 fluctuates depending on the magnitude of the current flowing through the load 4 only when the switch 2 is turned on and off.
本発明は上述の点に鑑みてなされたもので、上記問題
点を除去し、太陽電池で発電された電力を有効に利用で
き、且つ電圧の安定した太陽光発電装置における充電制
御方式を提供することにある。The present invention has been made in view of the above points, and eliminates the above problems and provides a charging control method in a solar power generation device that can effectively use the electric power generated by a solar cell and has a stable voltage. Especially.
上記問題点を解決するため本発明は、太陽電池と蓄電
池とを、該太陽電池の出力電圧を所定電圧に制御するDC
/DCコンバータを介して接続して成り、太陽電池の最大
電力点の電圧でDC/DCコンバータに出力させるべく信号
出力する最大電力点追尾手段と、蓄電池の端子電圧を検
出し、かつ最大電力点追尾手段からDC/DCコンバータへ
の信号出力を制御する切換制御手段とを備えて成り、切
換制御手段が満充電状態より低い電圧を検出した場合に
は、最大出力点追尾手段からDC/DCコンバータへ信号出
力させ、切換制御手段が満充電状態の電圧を検出した場
合には、最大出力点追尾手段からDC/DCコンバータへの
信号出力を遮断するようにしたことを特徴とする。In order to solve the above problems, the present invention provides a solar cell and a storage battery, a DC that controls the output voltage of the solar cell to a predetermined voltage.
Connected via a DC / DC converter, the maximum power point tracking means that outputs a signal to output to the DC / DC converter at the voltage of the maximum power point of the solar cell, the terminal voltage of the storage battery, and the maximum power point And a switching control means for controlling the signal output from the tracking means to the DC / DC converter. When the switching control means detects a voltage lower than the full charge state, the maximum output point tracking means changes the DC / DC converter. When the switching control means detects a fully charged voltage, the maximum output point tracking means cuts off the signal output to the DC / DC converter.
上記の如く構成することにより、蓄電池の端子電圧が
充分低い間は前記最大電力点追尾装置でDC/DCコンバー
タを制御して蓄電池を充電するから太陽電池は最大の出
力電力点で運転されることになり、前記蓄電池が満充電
状態に近づいたら電流制御装置による制御に切り換える
から蓄電池が過充電になるのを防止できると共に、蓄電
池が過充電とならない範囲で太陽電池で発電した電力を
有効に利用できる。With the above configuration, while the terminal voltage of the storage battery is sufficiently low, the solar battery operates at the maximum output power point because the maximum power point tracking device controls the DC / DC converter to charge the storage battery. When the storage battery approaches the fully charged state, the current control device is switched to the control so that the storage battery can be prevented from being overcharged and the electric power generated by the solar cell can be effectively used within the range where the storage battery does not become overcharged. it can.
以下、本発明の一実施例を図面に基づいて説明する。 An embodiment of the present invention will be described below with reference to the drawings.
第１図は本発明に係る充電制御方式を用いる太陽光発
電装置のシステム構成を示すブロック図である。同図に
おいて、第２図と同一符号を付した部分は同一又は相当
部分を示す。５は太陽電池１で発電した直流電圧を昇圧
或いは降圧させて蓄電池３及び負荷４に供給するDC/DC
コンバータ、６は後に詳述するように太陽電池１の出力
が最大になるように出力電圧、出力電流を制御する最大
電力点追尾手段（以下、最大電力点追尾制御装置）、Ｋ
はこの最大電力点追尾制御装置６の作動をスイッチング
する切換制御手段であって、これにより蓄電池３の端子
電圧が満充電状態の基準電圧より低い場合には最大出力
点追尾制御装置６が検出した最大電力点の電圧でDC/DC
コンバータ５を出力させるようにし、蓄電池３の端子電
圧が満充電状態の電圧に達した場合には最大出力点追尾
制御装置６からDC/DCコンバータ５への信号出力を遮断
するとともに、DC/DCコンバータ５からの出力を蓄電池
３に供給するようする。ここで、切換制御手段Ｋを構成
する７は前記蓄電池３の端子電圧を検出し蓄電池３が過
充電にならないようにDC/DCコンバータ５の出力電圧を
調整して充電電流を制御する電流制御装置、８は前記DC
/DCコンバータ５の制御を最大電力点追尾制御装置６か
ら電流制御装置７へ或いは電流制御装置７から最大電力
点追尾制御装置６へ切り換える切換スイッチ、９は前記
蓄電池３の端子電圧からその充電状態を検出し、切換ス
イッチ８を最大電力点追尾制御装置６側或いは電流制御
装置７側に切り換える切換制御回路である。FIG. 1 is a block diagram showing a system configuration of a photovoltaic power generation device using a charging control system according to the present invention. In the same figure, the parts given the same reference numerals as in FIG. 2 indicate the same or corresponding parts. DC / DC 5 is a DC voltage generated by the solar cell 1 which is stepped up or down and supplied to the storage battery 3 and the load 4.
The converter 6 is a maximum power point tracking means (hereinafter, maximum power point tracking control device) for controlling the output voltage and the output current so that the output of the solar cell 1 is maximized, as will be described later in detail, K
Is a switching control means for switching the operation of the maximum power point tracking control device 6, whereby the maximum output point tracking control device 6 detects when the terminal voltage of the storage battery 3 is lower than the reference voltage in the fully charged state. DC / DC at maximum power point voltage
When the terminal voltage of the storage battery 3 reaches the voltage in the fully charged state, the converter 5 is made to output, and the signal output from the maximum output point tracking control device 6 to the DC / DC converter 5 is cut off, and at the same time, the DC / DC The output from the converter 5 is supplied to the storage battery 3. Here, 7 which constitutes the switching control means K detects the terminal voltage of the storage battery 3 and adjusts the output voltage of the DC / DC converter 5 so that the storage battery 3 is not overcharged and controls the charging current. , 8 is the DC
The changeover switch for switching the control of the / DC converter 5 from the maximum power point tracking control device 6 to the current control device 7 or from the current control device 7 to the maximum power point tracking control device 6, 9 is the charging state from the terminal voltage of the storage battery 3 Is detected and the changeover switch 8 is changed over to the maximum power point tracking control device 6 side or the current control device 7 side.
ところで、太陽電池１の出力電圧−電流特性は第２図
に示すようになっている。同図に示すように光量LQ1,〜
LQ4により出力電圧Ｖと出力電流Ｉが変化する太陽電池
１で発電された電力を最大限有効に利用するには、その
出力電圧Ｖと出力電流Ｉとを最大電力点P1〜P4に維持す
る必要がある。第１図の最大電力点追尾制御装置６は、
太陽電池１の出力を最大電力点P1〜P4に維持する装置で
ある。即ち、電流センサ10で検出する出力電流Ｉと出力
電圧Ｖとから、太陽電池１の出力電圧Ｖ及び出力電流Ｉ
が常に第３図の点線Ａ上にあるようにDC/DCコンバータ
５の出力を制御する。By the way, the output voltage-current characteristic of the solar cell 1 is as shown in FIG. As shown in the figure, the light quantity LQ 1 , ~
In order to make the most effective use of the electric power generated by the solar cell 1 in which the output voltage V and the output current I are changed by the LQ 4 , the output voltage V and the output current I are set to the maximum power points P 1 to P 4 . Need to maintain. The maximum power point tracking control device 6 in FIG.
This is a device that maintains the output of the solar cell 1 at the maximum power points P 1 to P 4 . That is, from the output current I and the output voltage V detected by the current sensor 10, the output voltage V and the output current I of the solar cell 1 are calculated.
The output of the DC / DC converter 5 is controlled so that is always on the dotted line A in FIG.
第１図に示す如く構成された太陽光発電装置におい
て、蓄電池３の端子電圧VBが満充電のときの端子電圧よ
り小さい時は、切換制御回路９は切換スイッチ８を最大
電力点追尾制御装置６側に倒す。これにより最大電力点
追尾制御装置６は、DC/DCコンバータ５を制御し、蓄電
池３の充電状態には関係なく太陽電池１が最大電力点
（第２図のP1〜P4参照）で運転されるようにその出力電
圧及び出力電流を制御する。蓄電池３の端子電圧VBが上
昇し、満充電状態に近づくと切換制御回路９は切換スイ
ッチ８を電流制御装置７側に倒す。これにより電流制御
装置７は、蓄電池３の端子電圧VBに応じて太陽電池１の
出力が最大電力点に有るか否かに関係なく、蓄電池３が
過充電状態にならないようにDC/DCコンバータ５の出力
を調整して充電電流を制御する。負荷４へ供給される負
荷電流が増加する等して蓄電池３が満充電状態でなくな
ると、切過制御回路９は再び切換スイッチ８を最大電力
点追尾制御装置６側に倒し、最大電力点追尾制御装置６
で太陽電池１の出力が最大電力点に維持されるようにDC
/DCコンバータ５を制御する。In the photovoltaic power generation device configured as shown in FIG. 1, when the terminal voltage V B of the storage battery 3 is smaller than the terminal voltage when fully charged, the changeover control circuit 9 causes the changeover switch 8 to switch the maximum power point tracking control device. Defeat to side 6. Thereby, the maximum power point tracking control device 6 controls the DC / DC converter 5, and the solar cell 1 operates at the maximum power point (see P 1 to P 4 in FIG. 2) regardless of the state of charge of the storage battery 3. The output voltage and output current are controlled as described above. When the terminal voltage V B of the storage battery 3 rises and approaches a fully charged state, the changeover control circuit 9 turns the changeover switch 8 to the current control device 7 side. As a result, the current control device 7 prevents the storage battery 3 from being overcharged regardless of whether or not the output of the solar cell 1 is at the maximum power point according to the terminal voltage V B of the storage battery 3. The output of 5 is adjusted to control the charging current. When the storage battery 3 is no longer fully charged due to an increase in the load current supplied to the load 4, the cutover control circuit 9 again turns the changeover switch 8 to the maximum power point tracking control device 6 side, and the maximum power point tracking is performed. Control device 6
In order to maintain the output of solar cell 1 at the maximum power point, DC
/ DC converter 5 is controlled.
上記最大電力点追尾制御装置６としては種々のものが
考えられるが、例えば特開昭58−69469号公報に開示さ
れた技術を用いるとよい。第３図は上記文献に開示する
技術を、第１図の太陽光発電装置に用いた例を示すブロ
ック図である。Although various types of maximum power point tracking control device 6 are conceivable, for example, the technique disclosed in Japanese Patent Application Laid-Open No. 58-69469 may be used. FIG. 3 is a block diagram showing an example in which the technique disclosed in the above document is used in the solar power generation system of FIG.
太陽電池１の出力電流に対する電力の関係を図示すれ
ば第４図のようになる。即ち出力電流Ｉの増加と共に電
力Ｐも増加し、最大電力点Pmaxをすぎると減少する。従
って最大電力点追尾制御装置６は太陽電池１の出力をこ
の最大電力点に維持すればよい。The relationship between the output current of the solar cell 1 and the electric power is shown in FIG. That is, the power P increases as the output current I increases, and decreases when the maximum power point Pmax is exceeded. Therefore, the maximum power point tracking control device 6 may maintain the output of the solar cell 1 at this maximum power point.
第３図において、乗算器61は太陽電池１の出力電圧Ｖ
と出力電流Ｉとを入力信号とし、その積から太陽電池１
の出力電力Ｐ＝Ｖ×Ｉを求め出力する。微分回路62は電
力Ｐを時間微分してdP/dtを演算する。コンパレータ63
は微分出力dP/dtが正であるか負であるかを判別しdP/dt
＞０の時Ｈ（高）レベルを出力し、dP/dt＜０の時Ｌ
（低）レベルを出力する。ランプ関数回路64はＡ点の電
位が正のとき出力が傾斜的に上昇し、Ａ線の電位が負の
とき出力が傾斜的に減少する。このランプ関数回路64の
出力端子間に接続されている両方向ツエナーダイオード
65は上下をクランプするためのものである。反転回路66
はランプ関数回路64の出力が増大しつつあるときDC/DC
コンバータ５の出力電圧を減少させ、それと反対にラン
プ関数回路64の出力が減少しつつある時はDC/DCコンバ
ータ５の出力電圧を増大させる。排他的論理和回路68は
２入力B,Cが共に負のとき正の電圧を出力し、２入力B,C
のうち一方が正で他方が負のとき負の電圧を出力する。
バイステーブルマルチ回路67は入力Ａの電圧を記憶し、
制御端子ＤがＨレベルのとき入力Ａを出力Ｂに伝送す
る。論理和回路69はコンパレータ63の出力Ｃ又はクロッ
クパルスCPの出力のいずれかがＨレベルのときＨレベル
を出力する。クロックパルス発生器70は例えば１秒に１
発の周期でクロックパルスCPを出力する。In FIG. 3, the multiplier 61 indicates the output voltage V of the solar cell 1.
And the output current I as input signals, and the product
Output power P = V × I is calculated and output. The differentiating circuit 62 time-differentiates the electric power P to calculate dP / dt. Comparator 63
Determines whether the differential output dP / dt is positive or negative, and dP / dt
Outputs H (high) level when> 0, L when dP / dt <0
Outputs (low) level. In the ramp function circuit 64, the output ramps up when the potential at point A is positive, and the ramp ramps down when the potential at line A is negative. Bidirectional Zener diode connected between the output terminals of this ramp function circuit 64
65 is for clamping the top and bottom. Inversion circuit 66
DC / DC when the output of the ramp function circuit 64 is increasing
The output voltage of the converter 5 is decreased, and conversely, when the output of the ramp function circuit 64 is decreasing, the output voltage of the DC / DC converter 5 is increased. The exclusive OR circuit 68 outputs a positive voltage when the two inputs B and C are both negative and outputs the two inputs B and C.
When one of them is positive and the other is negative, it outputs a negative voltage.
The bistable multi-circuit 67 stores the voltage of the input A,
When the control terminal D is at H level, the input A is transmitted to the output B. The OR circuit 69 outputs the H level when either the output C of the comparator 63 or the output of the clock pulse CP is the H level. The clock pulse generator 70 has, for example, 1 second per second.
The clock pulse CP is output at the output cycle.
第３図に示す太陽光発電装置において、第４図に示
すように太陽電池１の動作点が最大出力点Pmax以下にあ
ってDC/DCコンバータ５の出力電圧が増大しつつあると
きは、即ちＡ点がＬレベル、Ｃ点がＨレベルのとき、及
び第４図のように太陽電池１の動作点が最大出力点pm
ax以上であってDC/DCコンバータ５の出力電圧が減少し
つつあるとき、即ちＡ点がＬレベル、Ｃ点がＨレベルの
ときは、いずれもその侭の状態を継続すれば太陽電池１
の動作点が最大出力点Pmaxに近づく。また、第４図に
示すように太陽電池１の動作点が最大出力点Pmax以下で
あってDC/DCコンバータ５の出力電圧が減少しつつある
とき、即ちＡ点がＬレベル、Ｃ点がＬレベルのとき及び
第４図に示すように太陽電池１の動作点が最大出力点
Pmax以上であってDC/DCコンバータ５の出力電圧が増大
しつつあるとき、即ちＡ点がＨレベル、Ｃ点がＬレベル
のときは、いずれも太陽電池１の動作点から遠去かって
いるが排他的論理和回路68の出力の反転によって動作点
が最大出力点Pmaxに近づく向きに変わる。上記のように
最大電力点追尾制御装置６は蓄電池３の充電状態に関係
なく太陽電池１の最大出力点Pmaxで運転される。In the solar power generation device shown in FIG. 3, when the operating point of the solar cell 1 is below the maximum output point Pmax and the output voltage of the DC / DC converter 5 is increasing as shown in FIG. When the A point is at the L level and the C point is at the H level, and the operating point of the solar cell 1 is the maximum output point pm as shown in FIG.
When the output voltage of the DC / DC converter 5 is not less than ax and the output voltage of the DC / DC converter 5 is decreasing, that is, when the point A is at the L level and the point C is at the H level, the solar cell 1 will continue if the state of the shade is continued.
The operating point of approaches the maximum output point Pmax. Further, as shown in FIG. 4, when the operating point of the solar cell 1 is less than or equal to the maximum output point Pmax and the output voltage of the DC / DC converter 5 is decreasing, that is, the A point is at the L level and the C point is at the L level. At the level and as shown in FIG. 4, the operating point of the solar cell 1 is the maximum output point.
When the output voltage of the DC / DC converter 5 is higher than Pmax and the output voltage of the DC / DC converter 5 is increasing, that is, when the point A is at the H level and the point C is at the L level, both are far from the operating point of the solar cell 1. By inverting the output of the exclusive OR circuit 68, the operating point changes so as to approach the maximum output point Pmax. As described above, the maximum power point tracking control device 6 is operated at the maximum output point Pmax of the solar cell 1 regardless of the state of charge of the storage battery 3.
なお、上記最大電力点追尾制御装置６の動作の詳細は
前記特開昭58−69469号公報に開示されいるから省略す
る。The details of the operation of the maximum power point tracking control device 6 are disclosed in JP-A-58-69469, and will not be described.
太陽電池１が上記の如く最大出力点Pmaxで運転され蓄
電池３が満充電に近づくと、前記のように切換制御回路
９は切換スイッチ８を電流制御装置７側に倒し、該電流
制御装置７でDC/DCコンバータ５の出力電圧を調整し蓄
電池３が過充電にならないように充電電流を抑制する。When the solar cell 1 is operated at the maximum output point Pmax as described above and the storage battery 3 approaches full charge, the changeover control circuit 9 tilts the changeover switch 8 to the current control device 7 side as described above, and the current control device 7 The output voltage of the DC / DC converter 5 is adjusted to suppress the charging current so that the storage battery 3 is not overcharged.
なお、上記実施例において、最大電力点追尾制御装置
６は、上記以外に例えば特開昭56−132174号公報に記載
された技術であってもよいことは当然である。It should be noted that in the above embodiment, the maximum power point tracking control device 6 may of course be a technique described in, for example, Japanese Patent Application Laid-Open No. 56-132174, in addition to the above.
以上説明したように本発明によれば、蓄電池の端子電
圧が基準電圧より低い場合には、最大出力点追尾手段に
より制御された電圧を蓄電池に供給するようにしたの
で、太陽電池で発電された電力を有効に利用できる。ま
た、蓄電池が基準電圧（満充電状態）に達した場合に
は、DC/DCコンバータによる所定電圧を蓄電池に供給す
るようにしたので、蓄電池が過充電状態になるのを防止
するだけでなく、蓄電池の電圧変動も従来より小さくで
きるため蓄電池寿命を長くさせ、負荷への安全性も確保
されるといった優れ効果を期待することができる。As described above, according to the present invention, when the terminal voltage of the storage battery is lower than the reference voltage, the voltage controlled by the maximum output point tracking means is supplied to the storage battery. Power can be used effectively. Further, when the storage battery reaches the reference voltage (fully charged state), the DC / DC converter supplies a predetermined voltage to the storage battery, so that the storage battery is not only prevented from becoming overcharged, Since the voltage fluctuation of the storage battery can be made smaller than before, it is possible to expect an excellent effect that the life of the storage battery is extended and the safety against load is secured.
第１図は本発明に係る充電制御方式を用いる太陽光発電
装置のシステム構成を示すブロック図、第２図は太陽電
池の出力電圧−電流特性を示す図、第３図は特開昭58−
69469号公報に開示された技術を第１図の太陽光発電装
置に用いた例を示すブロック図で、第４図は太陽電池の
出力電流に対する電力変化を示す図、第５図は太陽光発
電装置の概要を示すブロック図である。 図中、１……太陽電池、３……蓄電池、４……負荷、５
……DC/DCコンバータ、６……最大電力点追尾制御装
置、７……電流制御装置、８……切換スイッチ、９……
切換制御回路、10……電流センサ。FIG. 1 is a block diagram showing a system configuration of a solar power generation device using a charge control system according to the present invention, FIG. 2 is a diagram showing output voltage-current characteristics of a solar cell, and FIG. 3 is JP-A-58-.
FIG. 4 is a block diagram showing an example in which the technology disclosed in Japanese Patent Publication No. 69469 is used in the photovoltaic power generation device of FIG. 1, FIG. 4 is a diagram showing power change with respect to output current of a solar cell, and FIG. It is a block diagram which shows the outline | summary of an apparatus. In the figure, 1 ... solar battery, 3 ... storage battery, 4 ... load, 5
...... DC / DC converter, 6 ... Maximum power point tracking control device, 7 ... Current control device, 8 ... Changeover switch, 9 ...
Switching control circuit, 10 ... Current sensor.
Claims (1)
電圧を所定電圧に制御するDC/DCコンバータを介して接
続して成り、前記太陽電池の最大電力点の電圧で前記DC
/DCコンバータに出力させるべく信号出力する最大電力
点追尾手段と、前記蓄電池の端子電圧を検出し、かつ前
記最大電力点追尾手段から前記DC/DCコンバータへの信
号出力を制御する切換制御手段とを備えて成り、前記切
換制御手段が満充電状態より低い電圧を検出した場合に
は、前記最大出力点追尾手段から前記DC/DCコンバータ
へ信号出力させ、前記切換制御手段が満充電状態の電圧
を検出した場合には、前記最大出力点追尾手段から前記
DC/DCコンバータへの信号出力を遮断するようにしたこ
とを特徴とする太陽光発電装置。1. A solar cell and a storage battery are connected via a DC / DC converter that controls the output voltage of the solar cell to a predetermined voltage, and the DC voltage is the maximum power point of the solar cell.
/ A maximum power point tracking means for outputting a signal to be output to the DC converter, and a switching control means for detecting the terminal voltage of the storage battery and controlling the signal output from the maximum power point tracking means to the DC / DC converter. When the switching control means detects a voltage lower than a full charge state, the maximum output point tracking means outputs a signal to the DC / DC converter, and the switching control means outputs a voltage in a full charge state. Is detected from the maximum output point tracking means,
A solar power generation device characterized in that the signal output to the DC / DC converter is cut off.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60293961A JP2553327B2 (en) | 1985-12-27 | 1985-12-27 | Solar power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60293961A JP2553327B2 (en) | 1985-12-27 | 1985-12-27 | Solar power generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62154121A JPS62154121A (en) | 1987-07-09 |
| JP2553327B2 true JP2553327B2 (en) | 1996-11-13 |
Family
ID=17801427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60293961A Expired - Fee Related JP2553327B2 (en) | 1985-12-27 | 1985-12-27 | Solar power generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2553327B2 (en) |
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| JPS57119633A (en) * | 1981-01-16 | 1982-07-26 | Tokyo Shibaura Electric Co | Battery power converter control system |
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-
1985
- 1985-12-27 JP JP60293961A patent/JP2553327B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62154121A (en) | 1987-07-09 |
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