JP2002315226A - Charge controller and power source system having the same - Google Patents
Charge controller and power source system having the sameInfo
- Publication number
- JP2002315226A JP2002315226A JP2001112336A JP2001112336A JP2002315226A JP 2002315226 A JP2002315226 A JP 2002315226A JP 2001112336 A JP2001112336 A JP 2001112336A JP 2001112336 A JP2001112336 A JP 2001112336A JP 2002315226 A JP2002315226 A JP 2002315226A
- Authority
- JP
- Japan
- Prior art keywords
- storage battery
- charging
- voltage
- control device
- current
- 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
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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、太陽電池と蓄電池
の組み合わせによる電力供給システムおよび蓄電池の過
充電を抑制するための充電制御装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply system using a combination of a solar cell and a storage battery, and a charge control device for suppressing overcharge of the storage battery.
【０００２】[0002]
【従来の技術】太陽電池と鉛蓄電池の組み合わせによる
電力供給システムで、鉛蓄電池の過充電を抑制する方法
として（１）充電電圧が一定値以上になった場合に充電
回路を開放し、蓄電池電圧がある値以下に低下すると再
度充電回路を閉じて再充電を行う方法、さらには（２）
マイコン等により充放電電気量を積算して、鉛蓄電池の
放電電気量と充電効率を考慮した充電電気量で充電回路
を開放制御する方法（特開昭６３−１０３６２７号公報
参照）等が知られている。2. Description of the Related Art In a power supply system using a combination of a solar battery and a lead storage battery, a method for suppressing overcharging of the lead storage battery is as follows. (1) When the charging voltage becomes higher than a certain value, a charging circuit is opened, When the voltage drops below a certain value, the charging circuit is closed again to recharge the battery, and (2)
A method is known in which the amount of charge / discharge is integrated by a microcomputer or the like, and the charging circuit is opened and controlled with the amount of charge in consideration of the amount of discharge of the lead storage battery and the charging efficiency (see Japanese Patent Application Laid-Open No. 63-103627). ing.
【０００３】太陽電池の出力電流は天候，時刻により大
きな変動がある。従って前記した（１）に示す従来の方
法では鉛蓄電池の充電末期に充電電流が大きい時は鉛蓄
電池が完全に充電されていないにもかかわらず、充電電
圧が充電制御電圧にまで上昇して充電回路が開放される
ことになる。その結果として、蓄電池は満充電状態まで
充電されず、充電不足サイクルになりやすく、蓄電池の
寿命が低下するという欠点を有していた。[0003] The output current of a solar cell varies greatly depending on weather and time. Therefore, in the conventional method shown in the above (1), when the charging current is large at the end of charging of the lead storage battery, the charging voltage rises to the charge control voltage even though the lead storage battery is not completely charged. The circuit will be opened. As a result, the storage battery is not charged to a fully charged state, and is liable to be in an undercharge cycle, and has a drawback that the life of the storage battery is shortened.
【０００４】また、前記した（２）に示す従来の方法で
は充放電電流の計測精度が低い場合やインパルスノイズ
等によりマイコンが誤作動した場合に充放電電気量の積
算値がリセットされて計測値が実際の状態と全く違った
値となり、誤った充電制御をされる。このような問題を
避けるために高い電流計測精度やマイコンシステムが長
期にわたって誤作動しないという高い信頼性が必要とな
るという問題点を有していた。In the conventional method shown in (2) above, when the measurement accuracy of the charge / discharge current is low, or when the microcomputer malfunctions due to impulse noise or the like, the integrated value of the charge / discharge electric quantity is reset and the measured value is reset. Becomes a value completely different from the actual state, and incorrect charging control is performed. In order to avoid such a problem, there is a problem that high current measurement accuracy and high reliability that the microcomputer system does not malfunction for a long period of time are required.
【０００５】[0005]
【発明が解決しようとする課題】本発明は前記したよう
な従来方法で発生する充電不足による蓄電池寿命の低下
を抑制できる充電制御装置と、その充電制御装置を備え
た電源システムを比較的簡便な構成で提供することを目
的とする。SUMMARY OF THE INVENTION The present invention provides a charge control device capable of suppressing a decrease in the life of a storage battery due to insufficient charging caused by the conventional method as described above, and a power supply system having the charge control device, which is relatively simple. It is intended to be provided in a configuration.
【０００６】[0006]
【課題を解決するための手段】前記した課題を解決する
ために本発明の請求項１に記載の発明は、太陽電池の出
力により蓄電池を充電する充電制御装置において、充電
時の蓄電池電圧が第１の設定電圧まで上昇すると充電回
路を開放し、蓄電池電圧が前記第１の設定電圧よりも低
い第２の設定電圧まで低下すると再度充電回路を閉じて
充電を行う機能を備えるとともに、前記蓄電池の充電電
流が設定電流以下の場合は前記第１の設定電圧以上に蓄
電池電圧が上昇しても充電回路を開放しないで充電を継
続する充電制御装置を示すものである。According to a first aspect of the present invention, there is provided a charge control device for charging a storage battery by using an output of a solar battery, wherein the storage battery voltage during charging is equal to or less than a second voltage. When the storage battery voltage drops to a second set voltage lower than the first set voltage, the charging circuit is opened when the storage battery voltage drops to the first set voltage, and the charging circuit is closed again to charge when the storage battery voltage drops to the second set voltage. This shows a charge control device that continues charging without opening the charging circuit even when the storage battery voltage rises above the first set voltage when the charge current is equal to or less than the set current.
【０００７】本発明の請求項２に記載の発明は、請求項
１に記載の構成を備えた充電制御装置において蓄電池は
制御弁式鉛蓄電池であり前記設定電流はこの制御弁式鉛
蓄電池の密閉反応効率以下であることを示すものであ
る。According to a second aspect of the present invention, in the charge control device having the configuration according to the first aspect, the storage battery is a control valve type lead storage battery, and the set current is controlled by the closed state of the control valve type lead storage battery. This indicates that the reaction efficiency is lower than the reaction efficiency.
【０００８】本発明の請求項３に記載の発明は、請求項
１もしくは請求項２に示す充電制御装置を介して蓄電池
を充電し、前記蓄電池から負荷に電力を供給するように
構成した充電制御装置を備えた電源システムを示すもの
である。According to a third aspect of the present invention, there is provided a charge control device configured to charge a storage battery via the charge control device according to the first or second aspect and to supply power to the load from the storage battery. 1 shows a power supply system including a device.
【０００９】[0009]
【発明の実施の形態】本発明の一実施の形態を図面を用
いて説明する。An embodiment of the present invention will be described with reference to the drawings.
【００１０】図１は本発明による充電制御装置１とそれ
を用いた電源システムＡを示すブロック図である。充電
制御装置１はＣＰＵ２、プログラムＲＯＭ３、ＲＡＭ
４、設定情報や設定データ等を保存するＳＲＡＭ５、設
定入力用スイッチＳＷを備えた入力部６、計測・演算デ
ータ等を表示する液晶表示装置等の表示部７、太陽電池
からの充電回路の開閉を行うＦＥＴスイッチ等の太陽電
池充電回路スイッチ８を制御する出力部９、Ａ／Ｄコン
バータ１０等から構成される。FIG. 1 is a block diagram showing a charge control device 1 according to the present invention and a power supply system A using the same. The charge control device 1 includes a CPU 2, a program ROM 3, a RAM
4. SRAM 5 for storing setting information and setting data, etc., input unit 6 having a setting input switch SW, display unit 7 such as a liquid crystal display device for displaying measurement / computation data, etc., opening and closing of a charging circuit from a solar cell And an A / D converter 10 for controlling a solar battery charging circuit switch 8 such as an FET switch.
【００１１】この充電制御装置１には太陽電池パネル１
１が逆流防止用整流素子１２を介して接続されるととも
に、鉛蓄電池１３からＤＣ／ＤＣコンバータ１４を介し
て電源が供給されている。鉛蓄電池の充放電電流計測用
のシャント抵抗１５はマルチプレクサ１６およびＡ／Ｄ
コンバータ１０を介してＣＰＵ２に充放電電流値データ
を提供する。鉛蓄電池１３の電圧は総電圧計測端子１７
で充放電電流と同様、Ａ／Ｄコンバータ１０を介してＣ
ＰＵ２に読込まれる。The charge control device 1 includes a solar cell panel 1
1 is connected via a backflow prevention rectifying element 12, and power is supplied from a lead storage battery 13 via a DC / DC converter 14. The shunt resistor 15 for measuring the charge / discharge current of the lead storage battery is composed of a multiplexer 16 and an A / D
The charge / discharge current value data is provided to the CPU 2 via the converter 10. The voltage of the lead storage battery 13 is the total voltage measurement terminal 17
As with the charging / discharging current, C through the A / D converter 10
Read into PU2.
【００１２】本発明の充電制御装置１においては鉛蓄電
池１３の電池電圧が第１の設定電圧（Ｖ1）に到達すれ
ば太陽電池充電回路スイッチ８を開放することにより太
陽電池パネル１１から鉛蓄電池１３への充電が休止す
る。その後、鉛蓄電池１３の電池電圧が第２の設定電圧
（Ｖ2）まで低下すると再度太陽電池充電回路スイッチ
８を閉じる制御が繰り返し行われる。In the charging control device 1 of the present invention, when the battery voltage of the lead storage battery 13 reaches the first set voltage (V 1 ), the solar battery charging circuit switch 8 is opened to release the lead storage battery from the solar battery panel 11. 13 is suspended. Thereafter, when the battery voltage of the lead storage battery 13 decreases to the second set voltage (V 2 ), the control to close the solar battery charging circuit switch 8 again is repeatedly performed.
【００１３】ここで鉛蓄電池１３の電池電圧が第１の設
定電圧（Ｖ1）に到達した時点で鉛蓄電池の充電電流が
予め設定された設定電流（Ｉ1）以下の場合には太陽電
池充電回路スイッチ８の開放動作は行わず、連続して鉛
蓄電池１３への充電が行われる。充電電流値が設定電流
（Ｉ1）を越えて大きくなった場合には太陽電池充電回
路スイッチ８の開動作が行われ、鉛蓄電池１３の電池電
圧が第２の設定電圧（Ｖ2）に低下するまで太陽電池充
電回路スイッチ８は開状態が維持される。If the charge current of the lead-acid battery is equal to or less than the preset set current (I 1 ) when the battery voltage of the lead-acid battery 13 reaches the first set voltage (V 1 ), the solar cell charge The opening operation of the circuit switch 8 is not performed, and the lead storage battery 13 is continuously charged. When the charging current value exceeds the set current (I 1 ), the opening operation of the solar cell charging circuit switch 8 is performed, and the battery voltage of the lead storage battery 13 decreases to the second set voltage (V 2 ). Until the operation, the open state of the solar cell charging circuit switch 8 is maintained.
【００１４】この設定電流（Ｉ1）は鉛蓄電池として制
御弁式鉛蓄電池を使用する場合には、この制御弁式鉛蓄
電池の密閉反応効率が１００％である電流値とすること
が好ましい。このような設定によれば、鉛蓄電池の液減
りを最小限に抑制することができる。When a control valve type lead storage battery is used as the lead storage battery, the set current (I 1 ) is preferably a current value at which the closed reaction efficiency of the control valve type lead storage battery is 100%. According to such a setting, it is possible to minimize the decrease in the liquid of the lead storage battery.
【００１５】このような本発明の構成によれば液減りす
ることのない、設定電流値（Ｉ1）による充電が電池電
圧が第１の設定電圧（Ｖ1）に到達した後も継続するこ
とにより、従来方法に比較して蓄電池をより満充電状態
とすることができ、その結果として蓄電池の充放電サイ
クル寿命を長くすることができる。According to the configuration of the present invention, the charging by the set current value (I 1 ) without the liquid being reduced continues even after the battery voltage reaches the first set voltage (V 1 ). Accordingly, the storage battery can be more fully charged as compared with the conventional method, and as a result, the charge / discharge cycle life of the storage battery can be extended.
【００１６】本発明による電源システムＡは本発明の充
電制御装置１，太陽電池パネル１１および蓄電池１３で
構成される。この電源システムＡにおいて、例えば光セ
ンサ１８で太陽電池パネル１１の近傍の照度がある設定
値以下になると蓄電池切替スイッチ１９が閉動作し、負
荷２０に鉛蓄電池１３からの電力が供給される。The power supply system A according to the present invention comprises the charge control device 1, the solar cell panel 11 and the storage battery 13 according to the present invention. In the power supply system A, for example, when the illuminance near the solar cell panel 11 becomes lower than a certain set value by the optical sensor 18, the storage battery changeover switch 19 is closed, and the power from the lead storage battery 13 is supplied to the load 20.
【００１７】また、鉛蓄電池が熱逸走等により異常に高
温となった場合には温度計測用センサ２１によってこれ
を検知して鉛蓄電池から充電回路を開放したり、この温
度計測用センサ２１からの温度情報にもとづいて第１の
設定電圧（Ｖ1）に温度傾斜をもたせれば、鉛蓄電池１
３周囲の雰囲気温度が変動しても過充電や充電不足を抑
制することができる。When the temperature of the lead storage battery becomes abnormally high due to thermal runaway or the like, the temperature is detected by the temperature measurement sensor 21 to open the charging circuit from the lead storage battery, If the first set voltage (V 1 ) has a temperature gradient based on the temperature information, the lead-acid battery 1
3 Even if the ambient temperature fluctuates, overcharging or insufficient charging can be suppressed.
【００１８】図１に示した充電制御装置１にかえて図２
に示す充電制御装置１ａを用いることができる。充電制
御装置１ａは制御部分にＣＰＵを使用しないで論理回路
を構成したもので、図２は本発明の充電制御装置１ａと
それを用いた電源システムＢを示すブロック図である。Instead of the charge control device 1 shown in FIG.
Can be used. The charge control device 1a has a logic circuit configured without using a CPU for a control part. FIG. 2 is a block diagram showing a charge control device 1a of the present invention and a power supply system B using the same.
【００１９】図２に示した充電制御装置１ａと電源シス
テムＢは電流検出部２２で半固定抵抗等で設定された設
定電流値（Ｉ1）以上で、かつ蓄電池の電圧検出部２３
で半固定抵抗等で設定された第１の設定電圧（Ｖ1）以
上であれば論理回路２４，２５，出力制御部２６でＦＥ
Ｔスイッチ等の太陽電池充電回路スイッチ８を開放す
る。一度開放された太陽電池充電回路スイッチ８は出力
制御部２６で保持され電圧検出部２３で第２の設定電圧
（Ｖ2）以下になると出力制御部２６をリセットし、太
陽電池充電回路スイッチ８を閉じて太陽電池パネル１１
から再充電を行う。なお、温度検出部２７で設定された
温度以上の場合は、出力制御部２６で太陽電池充電回路
スイッチ８を開放して充電を行わない。The charge control device 1a and the power supply system B shown in FIG. 2 have a current detection unit 22 which is equal to or more than a set current value (I 1 ) set by a semi-fixed resistor or the like, and which has a storage battery voltage detection unit 23.
If the voltage is equal to or higher than the first set voltage (V 1 ) set by a semi-fixed resistor or the like, the logic circuits 24 and 25 and the output control unit 26 perform FE.
The solar battery charging circuit switch 8 such as a T switch is opened. Once opened, the solar cell charging circuit switch 8 is held by the output control unit 26, and when the voltage of the solar cell charging circuit switch 8 falls below the second set voltage (V 2 ) by the voltage detection unit 23, the output control unit 26 is reset. Closed solar panel 11
Recharge from. If the temperature is equal to or higher than the temperature set by the temperature detection unit 27, the output control unit 26 opens the solar cell charging circuit switch 8 and does not perform charging.
【００２０】充電制御装置１ａは前記した充電制御装置
１と同様の動作を行う。本発明の充電制御装置１，１ａ
は前記した充電制御を行う機能を備えていればよいので
図１および図２に示した例に限定されるものではない。The charge control device 1a performs the same operation as the charge control device 1 described above. Charge control device 1, 1a of the present invention
Is not limited to the examples shown in FIGS. 1 and 2 as long as it has the function of performing the charge control described above.
【００２１】[0021]
【実施例】図１，図２および前記に示した本発明の実施
の形態による本発明例の電源システムＡ，Ｂおよび比較
例の電源システムを構成して動作させ、蓄電池の容量推
移を比較した。DESCRIPTION OF THE PREFERRED EMBODIMENTS The power supply systems A and B of the present invention and the power supply system of the comparative example according to the embodiment of the present invention shown in FIGS. .
【００２２】本発明例および比較例の各電源システムは
定格出力２０Ｗの太陽電池パネルを４枚並列接続したも
のを用いている。このパネルの晴天時の出力電流は６Ａ
である。鉛蓄電池は公称電圧２Ｖ，定格容量１５０Ａｈ
の制御弁式鉛蓄電池の直列接続で１２Ｖ構成とした。Each of the power supply systems of the present invention example and the comparative example uses four solar cell panels having a rated output of 20 W connected in parallel. The output current of this panel in fine weather is 6A
It is. Lead storage battery has a nominal voltage of 2 V and a rated capacity of 150 Ah
And a 12 V configuration by series connection of the control valve type lead-acid batteries.
【００２３】本発明例および比較例ともに光センサ１８
で一定の照度以下になると蓄電池切替スイッチ１９を閉
じて負荷２０に直流電流を供給する。負荷２０は鉛蓄電
池１３から約２Ａの放電電流が流れる構成とした。照度
が低く、蓄電池切替スイッチ１９が閉じる時間を１０時
間と設定すると一晩に約２０Ａｈの電気量が流れること
になる。その他制御装置本体の電源や負荷２０の制御等
に常時０．１Ａ程度の放電電流が流れる構成とした。In both the present invention example and the comparative example, the optical sensor 18
When the illuminance falls below a certain level, the storage battery changeover switch 19 is closed to supply a DC current to the load 20. The load 20 has a configuration in which a discharge current of about 2 A flows from the lead storage battery 13. If the illuminance is low and the storage battery changeover switch 19 is closed for 10 hours, about 20 Ah of electricity flows overnight. In addition, a discharge current of about 0.1 A always flows to control the power supply of the control device body and the load 20.
【００２４】本発明例の電源システムＡは図１に示した
構成を備えて、第１の設定電圧（Ｖ 1）を蓄電池温度が
５０℃時に１４．４Ｖ、−１０℃時に１６．０Ｖとなる
よう直線的な温度傾斜制御を行うように設定したもので
あり、本発明例の電源システムＢは図２に示した構成で
温度にかかわらず１５．５Ｖ一定としたものである。The power supply system A of the present invention is shown in FIG.
With the configuration, the first set voltage (V 1) The battery temperature is
14.4V at 50 ° C, 16.0V at -10 ° C
Is set to perform linear temperature gradient control
The power supply system B of the present invention has the configuration shown in FIG.
The voltage was kept constant at 15.5 V regardless of the temperature.
【００２５】また本発明例の電源システムＡにおいては
蓄電池温度が５０℃以上の時は異常とみなして太陽電池
充電回路スイッチ８を開放するようにプログラム設定し
た。充電回路を開放後再充電する第２の設定電圧
（Ｖ2）は本発明例の電源システムＡ，Ｂおよび比較例
において１３．２Ｖとした。比較例の構成は充電電流に
関係なく、蓄電池電圧が第１の設定電圧（Ｖ1）に到達
すれば太陽電池充電回路スイッチ８を開放し、第２の設
定電圧（Ｖ2）まで低下すると再度太陽電池充電回路ス
イッチ８を閉じる制御を行う。In the power supply system A of the present invention, when the temperature of the storage battery is 50 ° C. or higher, it is regarded as abnormal and the program is set so that the solar battery charging circuit switch 8 is opened. The second set voltage (V 2 ) for recharging after opening the charging circuit was 13.2 V in the power supply systems A and B of the present invention and the comparative example. Regarding the configuration of the comparative example, regardless of the charging current, the solar battery charging circuit switch 8 is opened when the storage battery voltage reaches the first set voltage (V 1 ), and again when the storage battery voltage drops to the second set voltage (V 2 ). Control for closing the solar battery charging circuit switch 8 is performed.
【００２６】本発明例の電源システムＡ，Ｂにおいては
前記した比較例の構成に加えて設定電流（Ｉ1）を０．
０３ＣＡに設定し、この設定電流（Ｉ1）以下の充電電
流の場合には蓄電池電圧がＶ1以上に上昇しても太陽電
池充電回路スイッチ８を閉じないで充電を継続するよう
にプログラム設定したものである。この設定電流
（Ｉ1）は制御弁式鉛蓄電池の密閉反応効率が１００％
となる領域で設定される。In the power supply systems A and B according to the present invention, the set current (I 1 ) is set to 0.
Set 03CA, and programmed to continue charging without closing the solar charging circuit switch 8 also increases the battery voltage V 1 or more in the case of the setting current (I 1) following the charging current Things. This set current (I 1 ) is such that the sealed reaction efficiency of the control valve type lead-acid battery is 100%.
It is set in the area where
【００２７】この比較例による電源システムと本発明例
による電源システムＡ，Ｂについて同一環境に設置して
２ヶ月に一度０．１ＣＡの放電電流で１．８Ｖ／セルま
で放電して容量確認をした時の初期容量に対する容量変
化の推移を図３に示す。The power supply system according to this comparative example and the power supply systems A and B according to the present invention were installed in the same environment and discharged once every two months with a discharge current of 0.1 CA to 1.8 V / cell to confirm the capacity. FIG. 3 shows the transition of the capacitance change with respect to the initial capacitance at the time.
【００２８】図３の結果から明らかなように比較例の電
源システムでは明らかに充電不足サイクルによると考え
られる直線的な容量低下現象が出ているが、本発明によ
る電源システムではまた殆ど容量低下傾向が出ておら
ず、充電不足にいたることなく、適正な充電が行われる
ことがわかる。As is apparent from the results shown in FIG. 3, the power supply system of the comparative example has a linear capacity reduction phenomenon apparently caused by an undercharging cycle, but the power supply system according to the present invention also has a capacity reduction tendency. No charging occurs, indicating that proper charging is performed without any shortage of charging.
【００２９】[0029]
【発明の効果】以上のように本発明による充電制御装置
とその充電制御装置を備えた電源システムは太陽電池か
ら蓄電池に適正な充電制御を行うことによって、従来発
生していた充電不足による蓄電池容量の低下を抑制する
ことができる。さらに充電電気量の積算制御を行う必要
がないので、制御装置の構成を従来法よりシンプルでか
つ高い信頼性を得ることができるという効果を奏するも
のである。As described above, the charge control device according to the present invention and the power supply system equipped with the charge control device perform the proper charge control from the solar cell to the storage battery, so that the capacity of the storage battery caused by insufficient charging, which has conventionally occurred, can be obtained. Can be suppressed. Further, since there is no need to perform the integration control of the amount of charged electricity, the effect is obtained that the configuration of the control device is simpler and higher reliability can be obtained than in the conventional method.
【図１】本発明の一実施の形態による充電制御装置１と
それを用いた電源システムＡを示すブロック図FIG. 1 is a block diagram showing a charge control device 1 and a power supply system A using the same according to an embodiment of the present invention.
【図２】本発明の他の実施の形態による充電制御装置１
ａとそれを用いた電源システムＢを示すブロック図FIG. 2 is a charge control device 1 according to another embodiment of the present invention.
block diagram showing a and a power supply system B using the same
【図３】本発明例の電源システムＡ，Ｂと比較例による
電源システムの蓄電池の容量推移を示す図FIG. 3 is a diagram showing a change in capacity of a storage battery in the power supply systems A and B according to the present invention and a power supply system according to a comparative example.
１，１ａ 充電制御装置 ２ ＣＰＵ ３ プログラムＲＯＭ ４ ＲＡＭ ５ ＳＲＡＭ ６ 入力部 ７ 表示部 ８ 太陽電池充電回路スイッチ ９ 出力部 １０ Ａ／Ｄコンバータ １１ 太陽電池パネル １２ 逆流防止用整流素子 １３ 鉛蓄電池 １４ ＤＣ／ＤＣコンバータ １５ シャント抵抗 １６ マルチプレクサ １７ 総電圧計測端子 １８ 光センサ １９ 蓄電池切替スイッチ ２０ 負荷 ２１ 温度計測用センサ ２２ 電流検出部 ２３ 電圧検出部 ２４，２５ 論理回路 ２６ 出力制御部 ２７ 温度検出部 Ａ，Ｂ 電源システム DESCRIPTION OF SYMBOLS 1, 1a Charge control device 2 CPU 3 Program ROM 4 RAM 5 SRAM 6 Input unit 7 Display unit 8 Solar cell charging circuit switch 9 Output unit 10 A / D converter 11 Solar cell panel 12 Backflow prevention rectifying element 13 Lead storage battery 14 DC / DC converter 15 Shunt resistor 16 Multiplexer 17 Total voltage measurement terminal 18 Optical sensor 19 Battery switch 20 Load 21 Temperature measurement sensor 22 Current detection unit 23 Voltage detection unit 24, 25 Logic circuit 26 Output control unit 27 Temperature detection unit A, B power supply system
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5G003 AA06 BA01 CA04 CA14 CB01 DA13 GC05 5H030 AA03 AS20 BB04 DD00 FF42 FF43 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5G003 AA06 BA01 CA04 CA14 CB01 DA13 GC05 5H030 AA03 AS20 BB04 DD00 FF42 FF43
Claims (3)
充電制御装置において、充電時の蓄電池電圧が第１の設
定電圧まで上昇すると充電回路を開放し、前記蓄電池電
圧が前記第１の設定電圧よりも低い第２の設定電圧まで
低下すると再度充電回路を閉じて充電を行う機能を備え
るとともに、前記蓄電池の充電電流が設定電流以下の場
合は前記第１の設定電圧以上に蓄電池電圧が上昇しても
充電回路を開放しないで充電を継続するようにしたこと
を特徴とする充電制御装置。In a charging control device for charging a storage battery by an output of a solar battery, a charging circuit is opened when a storage battery voltage at the time of charging rises to a first set voltage, and the storage battery voltage becomes higher than the first set voltage. When the charging current of the storage battery is equal to or less than the set current, the storage battery voltage increases to the first set voltage or more when the charging current of the storage battery is equal to or less than the set current. A charging control device that continues charging without opening the charging circuit.
記設定電流は前記制御弁式鉛蓄電池の密閉反応効率以下
であることを特徴とする請求項１に記載の充電制御装
置。2. The charging control device according to claim 1, wherein the storage battery is a control valve type lead storage battery, and the set current is equal to or lower than a closed reaction efficiency of the control valve type lead storage battery.
御装置を介して蓄電池を充電し、前記蓄電池から負荷に
電力を供給するように構成したことを特徴とする充電制
御装置を備えた電源システム。3. A power supply equipped with a charge control device, wherein the storage battery is charged via the charge control device according to claim 1 or 2, and power is supplied from the storage battery to a load. system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001112336A JP2002315226A (en) | 2001-04-11 | 2001-04-11 | Charge controller and power source system having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001112336A JP2002315226A (en) | 2001-04-11 | 2001-04-11 | Charge controller and power source system having the same |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009283705A Division JP2010063359A (en) | 2009-12-15 | 2009-12-15 | Power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002315226A true JP2002315226A (en) | 2002-10-25 |
Family
ID=18963776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001112336A Pending JP2002315226A (en) | 2001-04-11 | 2001-04-11 | Charge controller and power source system having the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002315226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010172088A (en) * | 2009-01-21 | 2010-08-05 | Kyocera Corp | Electronic apparatus and charging control method |
| WO2011067900A1 (en) | 2009-12-03 | 2011-06-09 | パナソニック株式会社 | Power supply system and storage battery charge control method |
-
2001
- 2001-04-11 JP JP2001112336A patent/JP2002315226A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010172088A (en) * | 2009-01-21 | 2010-08-05 | Kyocera Corp | Electronic apparatus and charging control method |
| WO2011067900A1 (en) | 2009-12-03 | 2011-06-09 | パナソニック株式会社 | Power supply system and storage battery charge control method |
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