JP2003299256A - Method and apparatus for controlling charging/ discharging of secondary battery - Google Patents
Method and apparatus for controlling charging/ discharging of secondary batteryInfo
- Publication number
- JP2003299256A JP2003299256A JP2002100396A JP2002100396A JP2003299256A JP 2003299256 A JP2003299256 A JP 2003299256A JP 2002100396 A JP2002100396 A JP 2002100396A JP 2002100396 A JP2002100396 A JP 2002100396A JP 2003299256 A JP2003299256 A JP 2003299256A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- charging
- groups
- charger
- voltage
- 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.)
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Classifications
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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
- 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、鉛蓄電池等の二次
電池の充放電制御方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a charging / discharging control method and apparatus for a secondary battery such as a lead storage battery.
【０００２】[0002]
【従来の技術】鉛蓄電池等の二次電池は、製造工程にお
いて、満充電するまでに周期的に充放電を行う必要が有
り、また、完成品としての二次電池のサイクル寿命試験
として充放電が行われる。2. Description of the Related Art In a manufacturing process, a secondary battery such as a lead storage battery needs to be charged and discharged periodically until it is fully charged, and a secondary battery as a finished product is charged and discharged as a cycle life test. Is done.
【０００３】[0003]
【発明が解決しようとする課題】鉛蓄電池等の二次電池
をサイクル用途として試験する場合に、二次電池は充電
と放電を繰り返すことになるが、その際に二次電池が有
する総容量の充電電力が必要になると共に、放電時も総
電力量が消失してしまう。この問題を解決するために放
電時は電池から系統側に電力を回生するという方法があ
るが、この方法による場合には系統連係機能や最大の電
力容量を有するインバータ等が必要であると共に、イン
バータ等の変換効率による電力損失が発生すると共に、
また、系統側への逆潮流に対する対策を講じる必要が有
るという問題が有った。When a secondary battery such as a lead storage battery is tested for cycle use, the secondary battery is repeatedly charged and discharged. At that time, the total capacity of the secondary battery is In addition to requiring charging power, the total amount of power will be lost during discharging. In order to solve this problem, there is a method of regenerating electric power from the battery to the grid side at the time of discharging, but this method requires a grid linking function, an inverter having the maximum power capacity, and the like. Power loss due to conversion efficiency such as
In addition, there was a problem that it was necessary to take measures against the reverse power flow to the grid side.
【０００４】さらに、インバータ装置そのものが高価で
あり、設備がコスト高になるという問題が有った。本発
明はこのような事情に鑑みてなされたものであり、電力
回生用のインバータを必要とせず、かつ電力損失が発生
しないと共に、充電器のみで二次電池の充放電制御を行
うことができる二次電池の充放電制御方法及び装置を提
供することを目的とする。Further, there is a problem that the inverter device itself is expensive and the cost of equipment is high. The present invention has been made in view of such circumstances, does not require an inverter for power regeneration, does not cause power loss, and can perform charge / discharge control of a secondary battery only with a charger. An object of the present invention is to provide a charging / discharging control method and device for a secondary battery.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に請求項１に記載の発明は、同規格の複数の二次電池を
同数の２つの電池群に分割し、該分割された二組の電池
群を相互に逆極性となるように直列接続し、前記二組の
電池群の各々に交互に低電圧充電を行うことを特徴とす
る。In order to achieve the above object, the invention according to claim 1 divides a plurality of secondary batteries of the same standard into two battery groups of the same number, and divides the two sets. Battery groups are connected in series so as to have opposite polarities, and low voltage charging is alternately performed on each of the two battery groups.
【０００６】また、請求項２に記載の発明は、請求項１
に記載の二次電池の充放電制御方法において、さらに、
前記二組の電池群の各電池群の両端間に高電圧低電流充
電を行うことを特徴とする。The invention described in claim 2 is the same as claim 1
In the charge and discharge control method for the secondary battery according to,
It is characterized in that high voltage low current charging is performed between both ends of each of the two battery groups.
【０００７】また、請求項３に記載の発明は、同規格の
複数の二次電池を同数の２つの電池群に分割し、該分割
された二組の電池群を相互に逆極性となるように直列接
続し、前記二組の電池群が直列接続された直列回路の両
端間に並列に接続される一対のスイッチと、前記直列回
路の両端間に前記一対のスイッチを介して接続され前記
二組の電池群の各電池群を低電圧充電する第１の充電器
と、前記二組の電池群の各電池群を前記第１の充電器に
より交互に低電圧充電するように前記一対のスイッチを
切換制御する制御回路とを有することを特徴とする。According to the third aspect of the invention, a plurality of secondary batteries of the same standard are divided into two battery groups of the same number, and the divided two battery groups have mutually opposite polarities. And a pair of switches connected in parallel between both ends of a series circuit in which the two sets of battery groups are connected in series, and a pair of switches connected between both ends of the series circuit via the pair of switches. A first charger for low-voltage charging each battery group of the pair of battery groups, and the pair of switches for alternately low-voltage charging each battery group of the two battery groups by the first charger And a control circuit for switching control.
【０００８】また、請求項４に記載の発明は、請求項３
に記載の二次電池の充放電制御装置において、さらに、
前記一対のスイッチのうち一方のスイッチを介して、前
記第１の充電器により低電圧充電が行われる際に前記二
組の電池群のうち低電圧充電が行われる電池群とは異な
る他の電池群の両端間に接続され前記二組の電池群に高
電圧低電流充電を行う第２の充電器を有することを特徴
とする。The invention according to claim 4 is the same as claim 3
In the secondary battery charge and discharge control device according to,
Another battery different from the battery group in which low voltage charging is performed among the two battery groups when low voltage charging is performed by the first charger via one switch of the pair of switches It is characterized in that it has a second charger connected between both ends of the group to perform high-voltage low-current charging for the two battery groups.
【０００９】[0009]
【発明の実施の形態】以下、本発明の実施形態を、図面
を参照して詳細に説明する。本発明の実施形態に係る二
次電池の充放電制御装置は、同規格の複数の二次電池を
同数の２つの電池群に分割し、該分割された二組の電池
群を相互に逆極性となるように直列接続し、前記二組の
電池群の各々に交互に低電圧充電を行うことを特徴とす
る二次電池の充放電制御方法を実施するための装置であ
る。BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. A secondary battery charge / discharge control device according to an embodiment of the present invention divides a plurality of secondary batteries of the same standard into two battery groups of the same number, and the divided two battery groups have mutually opposite polarities. Is connected in series so that each of the two battery groups is alternately charged at a low voltage, which is a device for implementing a charge / discharge control method for a secondary battery.
【００１０】本発明の第１の実施形態に係る二次電池の
充放電制御装置の基本的構成を図１に示す。本実施形態
に係る二次電池の充放電制御装置は、同規格の複数の二
次電池を同数の２つの電池群１−１、１−２に分割し、
該分割された二組の電池群１−１、１−２を相互に逆極
性となるように直列接続し、前記二組の電池群１−１、
１−２の各々に交互に低電圧充電を行うように、放電側
の電池群（例えば、電池群１−１）に出力電圧が加算さ
れるような極性で接続される低電圧充電器２と、電流制
限用の抵抗４を介して放電側の電池群（例えば、電池群
１−１）を高電圧充電するように、該放電側の電池群の
両端間に接続される高電圧充電器３とを有している。FIG. 1 shows the basic configuration of a charge / discharge control device for a secondary battery according to the first embodiment of the present invention. The secondary battery charge / discharge control device according to the present embodiment divides a plurality of secondary batteries of the same standard into two battery groups 1-1 and 1-2 of the same number,
The two sets of divided battery groups 1-1 and 1-2 are connected in series so as to have opposite polarities, and the two sets of battery groups 1-1,
A low-voltage charger 2 connected with a polarity such that an output voltage is added to a battery group on the discharge side (for example, battery group 1-1) so as to alternately perform low-voltage charging on each of 1-2. , A high-voltage charger 3 connected across the discharge-side battery group so as to charge the discharge-side battery group (for example, the battery group 1-1) via the current-limiting resistor 4 at high voltage. And have.
【００１１】上記構成において、「二組の電池群１−
１、１−２を相互に逆極性となるように直列接続した」
とは図２に示すように接続することを意味するものと
し、このように二組の電池群１−１、１−２が直列接続
された直列回路の両端間の電位差Ｖは、既述したように
電池群１−１、１−２はそれぞれ、同規格の電池が同数
だけ直列接続されているので、略、０Ｖである。In the above structure, "two battery groups 1-
1, 1-2 were connected in series so that they had opposite polarities. "
Means to connect as shown in FIG. 2, and the potential difference V between both ends of the series circuit in which the two sets of battery groups 1-1 and 1-2 are connected in series is described above. As described above, the battery groups 1-1 and 1-2 are approximately 0V because the same number of batteries of the same standard are connected in series.
【００１２】図１において、電池群１−１の電池出力に
低電圧充電器２の出力電圧が加算されるように二組の電
池群１−１、１−２に低電圧充電器２が接続されると、
電池群１−１における正電極側の電位に低電圧充電器２
出力電圧が加算され、この合計電圧が電池群１−２の正
電極側の電位より高くなるので、電池群１−１及び低電
圧充電器２より電池群１−２に充電が行われる。このと
き放電側の電池群１−１の電池電圧は低電圧充電器２の
出力電圧で降下する。高電圧充電器３は抵抗４、低電圧
充電器２を介して電池群１−２に高電圧低電流充電され
る。In FIG. 1, the low voltage charger 2 is connected to the two battery groups 1-1 and 1-2 so that the output voltage of the low voltage charger 2 is added to the battery output of the battery group 1-1. When done,
The low-voltage charger 2 is applied to the potential on the positive electrode side of the battery group 1-1.
The output voltages are added, and the total voltage becomes higher than the potential on the positive electrode side of the battery group 1-2, so the battery group 1-2 and the low-voltage charger 2 charge the battery group 1-2. At this time, the battery voltage of the battery group 1-1 on the discharge side drops due to the output voltage of the low-voltage charger 2. The high voltage charger 3 charges the battery group 1-2 through the resistor 4 and the low voltage charger 2 at high voltage and low current.
【００１３】また、高電圧充電器３より電池群１−１に
高電圧低電流で放電量がやや減少する。図１では、充電
側の電池群が電池群１−２、放電側の電池群が電池群１
−１である場合について説明したが、上記動作は、充電
側の電池群が電池群１−１、放電側の電池群が電池群１
−２となるように切り換えられた場合にも同様である。
次に、本発明の第１の実施形態に係る二次電池の充放電
制御装置の具体的構成を図３に示す。同図において、ま
ず、同規格の複数の二次電池を同数の２つの電池群１０
−１、１０−２に分割し、該分割された二組の電池群電
池群１０−１、１０−２を相互に逆極性となるように直
列接続し、前記二組の電池群１０−１、１０−２が直列
接続された直列回路の両端間の電位差が零となるように
した状態で各電池群１０−１、１０−２を充放電制御の
対象とする。Further, the amount of discharge from the high-voltage charger 3 to the battery group 1-1 is slightly reduced by high-voltage and low-current. In FIG. 1, the charging side battery group is the battery group 1-2, and the discharging side battery group is the battery group 1.
In the above operation, the charging side battery group is the battery group 1-1, and the discharging side battery group is the battery group 1.
The same is true when switched to −2.
Next, FIG. 3 shows a specific configuration of the charge / discharge control device for a secondary battery according to the first embodiment of the present invention. In the figure, first, a plurality of rechargeable batteries of the same standard are arranged in two battery groups 10 of the same number.
-1, 10-2 are divided into two groups, and the divided two groups of battery groups 10-1 and 10-2 are connected in series so as to have mutually opposite polarities. The battery groups 10-1 and 10-2 are subjected to charge / discharge control in a state in which the potential difference between both ends of a series circuit in which 10-2 are connected in series is set to zero.
【００１４】本発明の第１の実施形態に係る二次電池の
充放電制御装置は、上述したように二組の電池群１０−
１、１０−２が直列接続されたその両端間の電位差が零
となるようにした状態で二組の電池群１０−１、１０−
２が直列接続されたその両端間に並列に接続される一対
のスイッチ１２、１４と、二組の電池群１０−１、１０
−２が直列接続されたその両端間にスイッチ１２、１４
を介して接続され二組の電池群１０−１、１０−２の各
々を低電圧充電する低電圧充電器１６と、抵抗２２、ス
イッチ１２を介して、低電圧充電器１６により低電圧充
電が行われる電池群の両端間に接続され二組の電池群１
０−１、１０−２に高電圧低電流充電を行う高電圧充電
器１８と、制御回路２０とを有している。The charging / discharging control device for a secondary battery according to the first embodiment of the present invention is, as described above, composed of two battery groups 10-.
Two sets of battery groups 10-1 and 10- in which the potential difference between both ends of which 1 and 10-2 are connected in series are zero
A pair of switches 12 and 14 connected in parallel between both ends of which 2 is connected in series, and two sets of battery groups 10-1 and 10
-2 is connected in series, and the switches 12 and 14 are connected between the two ends.
The low-voltage charger 16 that is connected via the low-voltage charger 16 for low-voltage charging each of the two battery groups 10-1 and 10-2, and the low-voltage charger 16 through the resistor 22 and the switch 12 for low-voltage charging. Two sets of battery groups 1 connected between both ends of the battery group to be performed
0-1 and 10-2 have a high-voltage charger 18 for high-voltage and low-current charging, and a control circuit 20.
【００１５】制御回路２０は、電池群１０−１、１０−
２の各々を低電圧充電器１６により交互に所定周期で低
電圧充電するように、すなわち一対のスイッチ１２、１
４を図１に示した状態から同時にかつ交互に切り換える
ように切換制御する。抵抗２２は、電池群１０−１、１
０−２間における充放電時に生じる電圧変動を吸収する
ことと、高電圧充電器１８による充電時に微小電流を電
池群１０−１、または電池群１０−２に流すための電流
制限用として設けられている。The control circuit 20 includes battery groups 10-1, 10-.
Each of the two switches 2 and 1 is alternately charged by the low voltage charger 16 at a predetermined cycle, that is, the pair of switches 12 and 1
4 is controlled to be switched from the state shown in FIG. 1 simultaneously and alternately. The resistor 22 is the battery group 10-1, 1
It is provided for absorbing a voltage fluctuation generated during charging / discharging between 0 and 2 and for limiting a current for causing a minute current to flow to the battery group 10-1 or the battery group 10-2 during charging by the high voltage charger 18. ing.
【００１６】また、低電圧充電器１６、１８の入力端は
それぞれ、入力端子１００、１０１を介して商用電源に
接続されている。なお、低電圧充電器１６は本発明の第
１の充電器に、高電圧充電器１８は本発明の第２の充電
器に、それぞれ相当する。The input terminals of the low-voltage chargers 16 and 18 are connected to the commercial power source via the input terminals 100 and 101, respectively. The low voltage charger 16 corresponds to the first charger of the present invention, and the high voltage charger 18 corresponds to the second charger of the present invention.
【００１７】上記構成において、低電圧充電器１６の出
力は、二組の電池群１０−１、１０−２の電池電圧が相
殺されるように接続されているために、通常時は「０
Ｖ」である。低電圧充電器１６が動作すると、例えば、
図１に示す状態では、スイッチ１２は接点１２ａ側に、
スイッチ１４は接点１４ｂ側に切り換えられているの
で、電池群１０−２の電池電圧に加算されるように低電
圧充電器１６の出力電圧が印加され、電池群１０−２側
の電圧が高くなる。In the above structure, the output of the low voltage charger 16 is connected so that the battery voltages of the two battery groups 10-1 and 10-2 are canceled out, so that the output is normally "0".
V ”. When the low voltage charger 16 operates, for example,
In the state shown in FIG. 1, the switch 12 is on the contact 12a side,
Since the switch 14 is switched to the contact 14b side, the output voltage of the low voltage charger 16 is applied so as to be added to the battery voltage of the battery group 10-2, and the voltage of the battery group 10-2 side becomes high. .
【００１８】ここで、二組の電池群１０−１、１０−２
に流れる電流は互いに逆向きであるために、電池群１０
−２から電池群１０−１に充電が行われ、電池群１０−
２は放電を行うこととなる。すなわち、低電圧充電器１
６により電池群１０−２に印加される電圧は電池群１０
−２から電池群１０−１に充電を開始させるためのトリ
ガー信号として機能する。この放電は、電池群１０−２
の電力容量が電池群１０−１に移動することにより行わ
れるので、基本的に電力損失は生じない。Here, two sets of battery groups 10-1, 10-2.
Since the currents flowing in the batteries are in opposite directions, the battery group 10
-2, the battery group 10-1 is charged, and the battery group 10-
2 will discharge. That is, the low voltage charger 1
6 applies the voltage applied to the battery group 10-2 to the battery group 10-2.
-2 functions as a trigger signal for causing the battery group 10-1 to start charging. This discharge is caused by the battery group 10-2.
Since the power capacity is moved to the battery group 10-1, the power loss basically does not occur.
【００１９】次に、制御回路２０が、スイッチ１２、１
４を図１に示した状態から接点１２ｂ、接点１４ａ側に
それぞれ、切り換えると、電池群１０−１の電池電圧に
加算されるように低電圧充電器１６の出力電圧が印加さ
れ、電池群１０−１側の電圧が高くなる。この結果、電
池群１０−２に充電が行われ、電池群１０−１は放電を
行うこととなる。Next, the control circuit 20 switches the switches 12, 1
4 is switched from the state shown in FIG. 1 to the contact 12b side and the contact 14a side, respectively, the output voltage of the low-voltage charger 16 is applied so as to be added to the battery voltage of the battery group 10-1, and the battery group 10 is connected. The voltage on the -1 side increases. As a result, the battery group 10-2 is charged and the battery group 10-1 is discharged.
【００２０】このように制御回路２０によりスイッチ１
２、１４を所定周期で切換制御することにより電池群１
０−１、１０−２を交互に充放電させることができる。
低電圧充電器１６により各電池群１０−１、１０−２に
供給される充電電圧は、各電池群が充電される時の電圧
上昇分（＋ΔＶ）と放電される時の電圧降下分（−Δ
Ｖ）のみになるため、非常に小さな電圧でよい。したが
って、充電時の電力量が非常に少なくて済む。Thus, the switch 1 is controlled by the control circuit 20.
Battery group 1 is controlled by switching control of 2 and 14 at a predetermined cycle.
0-1 and 10-2 can be charged / discharged alternately.
The charging voltage supplied to each of the battery groups 10-1 and 10-2 by the low-voltage charger 16 is a voltage increase amount (+ ΔV) when the battery group is charged and a voltage drop amount (−ΔV) when the battery group is discharged. Δ
V) only, so a very small voltage is sufficient. Therefore, the amount of electric power during charging can be very small.
【００２１】また、上記各電池群１０−１、または１０
−２に低電圧充電器１６より充電する際には同時に電池
群１０−１、１０−２の両者に高電圧充電器１８により
充電が行われるが、この場合に二組の電池群全体に対し
て充電を行うので、高電圧充電となる。但し、高電圧充
電器１８は、各電池群の充電効率に起因する充電不足を
補うために充電を行うだけであるので、微小電力を出力
する機能を有するだけでよい。すなわち、高電圧低電流
充電を行う機能を有するだけでよい。Further, each of the battery groups 10-1 or 10
-2 when the low voltage charger 16 charges the battery groups 10-1 and 10-2 at the same time by the high voltage charger 18, but in this case, the two battery groups as a whole are charged. Since it is charged by using high voltage, it becomes high voltage charging. However, since the high-voltage charger 18 only performs charging in order to compensate for the insufficient charging due to the charging efficiency of each battery group, it only needs to have the function of outputting a small amount of electric power. That is, it only needs to have a function of performing high-voltage low-current charging.
【００２２】本発明の第２の実施形態に係る二次電池の
充放電制御装置の基本的構成を図４に示す。本実施形態
に係る二次電池の充放電制御装置が、第１の実施形態に
係る二次電池の充放電制御装置と構成上、異なるのは、
高電圧充電器３を電流制限用の抵抗４を介して充電側の
電池群（図４の例では電池群１−２）に並列に接続され
るように構成した点であり、他の構成は同様であるの
で、重複する説明は省略する。FIG. 4 shows a basic configuration of a charge / discharge control device for a secondary battery according to the second embodiment of the present invention. The charge / discharge control device for a secondary battery according to the present embodiment differs from the charge / discharge control device for a secondary battery according to the first embodiment in configuration.
The high voltage charger 3 is configured to be connected in parallel to the battery group on the charging side (battery group 1-2 in the example of FIG. 4) via the current limiting resistor 4, and the other configurations are Since it is the same, duplicate description will be omitted.
【００２３】図４において、電池群１−１の電池出力に
低電圧充電器２の出力電圧が加算されるように二組の電
池群１−１、１−２に低電圧充電器２が接続されると、
電池群１−１における正電極側の電位に低電圧充電器２
出力電圧が加算され、この合計電圧が電池群１−２の正
電極側の電位より高くなるので、電池群１−１及び低電
圧充電器２より電池群１−２に充電が行われると共に、
高電圧充電器３より抵抗４を介して電池群１−２に高電
圧充電される。図４では、充電側の電池群が電池群１−
２、放電側の電池群が電池群１−１である場合について
説明したが、上記動作は、充電側の電池群が電池群１−
１、放電側の電池群が電池群１−２となるように切り換
えられた場合にも同様である。In FIG. 4, the low voltage charger 2 is connected to the two battery groups 1-1 and 1-2 so that the output voltage of the low voltage charger 2 is added to the battery output of the battery group 1-1. When done,
The low-voltage charger 2 is applied to the potential on the positive electrode side of the battery group 1-1.
The output voltages are added, and the total voltage becomes higher than the potential on the positive electrode side of the battery group 1-2, so that the battery group 1-2 and the low-voltage charger 2 charge the battery group 1-2,
The high voltage charger 3 charges the battery group 1-2 through the resistor 4 to a high voltage. In FIG. 4, the battery group on the charging side is the battery group 1-
2. The case where the discharge side battery group is the battery group 1-1 has been described, but the above operation is performed by the charge side battery group 1-
1. The same applies when the discharge side battery group is switched to the battery group 1-2.
【００２４】本発明の第２の実施形態に係る二次電池の
充放電制御装置の具体的構成を図５に示す。本実施形態
に係る二次電池の充放電制御装置の具体的構成が図３に
示した第２の実施形態に係る二次電池の充放電制御装置
と異なるのは高電圧充電器１８の正極性の出力端子が抵
抗２２を介して低電圧充電器１６の正極性の出力端子に
接続されている点だけであり、他の構成は図３に示した
第２の実施形態に係る二次電池の充放電制御装置と同様
であり、動作は図４に示した基本構成の動作と同一であ
るので、重複する説明は省略する。FIG. 5 shows a specific configuration of a charge / discharge control device for a secondary battery according to the second embodiment of the present invention. The specific configuration of the charge / discharge control device for a secondary battery according to the present embodiment differs from the charge / discharge control device for a secondary battery according to the second embodiment shown in FIG. 3 in that the positive polarity of the high-voltage charger 18 is positive. Of the secondary battery according to the second embodiment shown in FIG. 3 except that the output terminal of the secondary battery is connected to the positive output terminal of the low-voltage charger 16 via the resistor 22. Since the operation is the same as that of the charge / discharge control device and the operation is the same as the operation of the basic configuration shown in FIG. 4, redundant description will be omitted.
【００２５】本発明の第１、第２の実施形態に係る二次
電池の充放電制御装置によれば、充電される一方の電池
群は、他方の電池群が充電されている電力容量を移動さ
せる方式で放電しながら他方の電池群により充電され、
この動作を繰り返すことにより各電池群が充放電を繰り
返することができ、電力回生用のインバータを用いるこ
となく、かつ電力損失が発生しないと共に、小容量の充
電器のみで二次電池の充放電制御を行うことができる。
また、本発明の第１、第２の実施形態に係る二次電池の
充放電制御装置によれば、高電圧充電器は、放電側の二
次電池の及び低電圧充電器の充電機能に対する補助的な
充電器として機能するので、放電側の二次電池の放電量
を低減できるという効果が得られる。According to the charging / discharging control device for a secondary battery according to the first and second embodiments of the present invention, one battery group to be charged moves in the power capacity in which the other battery group is charged. While being discharged by the method of being charged by the other battery group,
By repeating this operation, each battery group can be repeatedly charged and discharged, without using an inverter for power regeneration and without causing power loss, and charging and discharging the secondary battery only with a small capacity charger. Control can be performed.
In addition, according to the charge / discharge control device for a secondary battery according to the first and second embodiments of the present invention, the high-voltage charger is an auxiliary device for charging the discharge-side secondary battery and the low-voltage charger. Since it functions as an effective charger, the amount of discharge of the secondary battery on the discharge side can be reduced.
【００２６】[0026]
【発明の効果】請求項１に記載の発明によれば、同規格
の複数の二次電池を同数の２つの電池群に分割し、該分
割された二組の電池群を相互に逆極性となるように直列
接続し、前記二組の電池群の各々に交互に低電圧充電を
行うようにしたので、充電される一方の電池群は、他方
の電池群が充電されている電力容量を移動させる方式で
放電しながら他方の電池群により充電され、この動作を
繰り返すことにより各電池群が充放電を繰り返すること
ができ、電力回生用のインバータを用いることなく、か
つ電力損失が発生しないと共に、小容量の充電器のみで
二次電池の充放電制御を行うことができる。According to the first aspect of the present invention, a plurality of secondary batteries of the same standard are divided into two battery groups of the same number, and the two divided battery groups have mutually opposite polarities. In this way, the two battery groups are connected in series so that each of the two battery groups is alternately charged at a low voltage, so that one of the battery groups to be charged can move the power capacity in which the other battery group is being charged. The battery is charged by the other battery group while discharging by the method that is performed, and each battery group can repeat charging and discharging by repeating this operation, without using an inverter for power regeneration and without causing power loss. The charging / discharging control of the secondary battery can be performed only with a small capacity charger.
【００２７】請求項２に記載の発明によれば、請求項１
に記載の二次電池の充放電制御方法において、さらに、
前記二組の電池群の各電池群の両端間に高電圧低電流充
電を行うようにしたので、電池の充電効率に起因する電
力損失を補うことができ、電池の過放電を防止すること
により安定した充放電制御を行うことができる。According to the invention of claim 2, claim 1
In the charge and discharge control method for the secondary battery according to,
Since high-voltage low-current charging is performed between both ends of each of the two battery groups, it is possible to compensate for power loss due to the charging efficiency of the battery and prevent over-discharge of the battery. Stable charge / discharge control can be performed.
【００２８】請求項３に記載の発明によれば、同規格の
複数の二次電池を同数の２つの電池群に分割し、該分割
された二組の電池群を相互に逆極性となるように直列接
続し、前記二組の電池群が直列接続された直列回路の両
端間に並列に接続される一対のスイッチと、前記直列回
路の両端間に前記一対のスイッチを介して接続され前記
二組の電池群の各電池群を低電圧充電する第１の充電器
と、前記二組の電池群の各電池群を前記第１の充電器に
より交互に低電圧充電するように前記一対のスイッチを
切換制御する制御回路とを有するので、電力回生用のイ
ンバータを用いることなく、かつ電力損失が発生しない
と共に、小容量の充電器のみで二次電池の充放電制御を
行うことができる。According to the third aspect of the present invention, a plurality of secondary batteries of the same standard are divided into the same number of two battery groups, and the two divided battery groups have mutually opposite polarities. And a pair of switches connected in parallel between both ends of a series circuit in which the two sets of battery groups are connected in series, and a pair of switches connected between both ends of the series circuit via the pair of switches. A first charger for low-voltage charging each battery group of the pair of battery groups, and the pair of switches for alternately low-voltage charging each battery group of the two battery groups by the first charger And a control circuit for switching control of the secondary battery, it is possible to perform charge / discharge control of the secondary battery only with a small-capacity charger, without using an inverter for power regeneration, without causing power loss.
【００２９】請求項４に記載の発明によれば、請求項３
に記載の二次電池の充放電制御装置において、さらに、
前記一対のスイッチのうち一方のスイッチを介して、前
記第１の充電器により低電圧充電が行われる際に前記二
組の電池群のうち低電圧充電が行われる電池群とは異な
る他の電池群の両端間に接続され前記二組の電池群に高
電圧低電流充電を行う第２の充電器を有するので、電池
の充電効率に起因する充電不足を補うことができ、電池
の過放電を防止することにより安定した充放電制御を行
うことができる。According to the invention of claim 4, claim 3
In the secondary battery charge and discharge control device according to,
Another battery different from the battery group in which low voltage charging is performed among the two battery groups when low voltage charging is performed by the first charger via one switch of the pair of switches Since the two battery groups which are connected between both ends of the group and perform high voltage and low current charging to the two battery groups are provided, it is possible to compensate for the insufficient charging due to the charging efficiency of the batteries and to prevent over-discharging of the batteries. By preventing it, stable charge / discharge control can be performed.
【図１】 本発明の第１の実施形態に係る二次電池の充
放電制御装置の基本的構成を示すブロック図。FIG. 1 is a block diagram showing a basic configuration of a charge / discharge control device for a secondary battery according to a first embodiment of the present invention.
【図２】 図１における二組の電池群の接続状態を示す
説明図。FIG. 2 is an explanatory view showing a connection state of two battery groups in FIG.
【図３】 本発 明の第１の実施形態に係る二次電池の
充放電制御装置の具体的構成を示すブロック図。FIG. 3 is a block diagram showing a specific configuration of a charge / discharge control device for a secondary battery according to the first embodiment of the present invention.
【図４】 本発明の第２の実施形態に係る二次電池の充
放電制御装置の基本的構成を示すブロック図。FIG. 4 is a block diagram showing a basic configuration of a charge / discharge control device for a secondary battery according to a second embodiment of the present invention.
【図５】 本発明の第２の実施形態に係る二次電池の充
放電制御装置の具体的構成を示すブロック図。FIG. 5 is a block diagram showing a specific configuration of a charge / discharge control device for a secondary battery according to a second embodiment of the present invention.
１−１…放電側の電池群 １−２…充電側の電池群 ２、１６…低電圧充電器 ３、１８…高電圧充電器 ４、２２…電流制限用の抵抗 １０−１…第１の電池群 １０−２…第２の電池群 １２、１４…スイッチ ２０…制御回路 1-1 ... Discharge side battery group 1-2 ... Battery group on the charging side 2, 16 ... Low voltage charger 3, 18 ... High voltage charger 4, 22 ... Resistors for limiting current 10-1 ... First battery group 10-2 ... Second battery group 12, 14 ... Switch 20 ... Control circuit
Claims (4)
電池群に分割し、該分割された二組の電池群を相互に逆
極性となるように直列接続し、前記二組の電池群の各々
に交互に低電圧充電を行うことを特徴とする二次電池の
充放電制御方法。1. A plurality of secondary batteries of the same standard are divided into two battery groups of the same number, and the divided two battery groups are connected in series so as to have mutually opposite polarities. A charging / discharging control method for a secondary battery, wherein low voltage charging is alternately performed on each of the battery groups.
両端間に高電圧低電流充電を行うことを特徴とする請求
項１に記載の二次電池の充放電制御方法。2. The charging / discharging control method for a secondary battery according to claim 1, further comprising performing high-voltage low-current charging between both ends of each of the two battery groups.
電池群に分割し、該分割された二組の電池群を相互に逆
極性となるように直列接続し、前記二組の電池群が直列
接続された直列回路の両端間に並列に接続される一対の
スイッチと、 前記直列回路の両端間に前記一対のスイッチを介して接
続され前記二組の電池群の各電池群を低電圧充電する第
１の充電器と、 前記二組の電池群の各電池群を前記第１の充電器により
交互に低電圧充電するように前記一対のスイッチを切換
制御する制御回路と、 を有することを特徴とする二次電池の充放電制御装置。3. A plurality of secondary batteries of the same standard are divided into two battery groups of the same number, and the divided two battery groups are connected in series so as to have polarities opposite to each other. A pair of switches connected in parallel between both ends of a series circuit in which the battery groups are connected in series, and each battery group of the two sets of battery groups connected across the series circuit via the pair of switches. A first charger for low voltage charging; and a control circuit for switching control of the pair of switches so that each battery group of the two battery groups is alternately charged by the first charger at low voltage. A charging / discharging control device for a secondary battery, which has:
のスイッチを介して、前記第１の充電器により低電圧充
電が行われる際に前記二組の電池群のうち低電圧充電が
行われる電池群とは異なる他の電池群の両端間に接続さ
れ前記二組の電池群に高電圧低電流充電を行う第２の充
電器を有することを特徴とする請求項３に記載の二次電
池の充放電制御装置。4. A battery in which low voltage charging is performed in the two battery groups when low voltage charging is performed by the first charger via one switch of the pair of switches. The secondary battery according to claim 3, further comprising a second battery charger connected between both ends of another battery group different from the battery group to charge the two battery groups with high voltage and low current. Charge / discharge control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002100396A JP3713470B2 (en) | 2002-04-02 | 2002-04-02 | Secondary battery charge / discharge controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002100396A JP3713470B2 (en) | 2002-04-02 | 2002-04-02 | Secondary battery charge / discharge controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003299256A true JP2003299256A (en) | 2003-10-17 |
| JP3713470B2 JP3713470B2 (en) | 2005-11-09 |
Family
ID=29388386
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002100396A Expired - Fee Related JP3713470B2 (en) | 2002-04-02 | 2002-04-02 | Secondary battery charge / discharge controller |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009100725A1 (en) | 2008-02-14 | 2009-08-20 | Vega Technologies, Ltd. | Two-way battery charger and use method |
| WO2011105005A1 (en) * | 2010-02-26 | 2011-09-01 | Takahashi Sachio | Charger and charging apparatus |
| JP5015335B1 (en) * | 2011-03-15 | 2012-08-29 | 幸男 高橋 | Charger and charger |
| WO2014069835A1 (en) * | 2012-10-30 | 2014-05-08 | Bae Youn-Soo | Load current regenerating circuit and electrical device having load current regenerating circuit |
| CN110605997A (en) * | 2018-06-15 | 2019-12-24 | 罗伯特·博世有限公司 | Method for carrying out a rapid charging process for an electrical energy store of an electrically driven vehicle |
-
2002
- 2002-04-02 JP JP2002100396A patent/JP3713470B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009100725A1 (en) | 2008-02-14 | 2009-08-20 | Vega Technologies, Ltd. | Two-way battery charger and use method |
| WO2011105005A1 (en) * | 2010-02-26 | 2011-09-01 | Takahashi Sachio | Charger and charging apparatus |
| JP2011182496A (en) * | 2010-02-26 | 2011-09-15 | Yukio Takahashi | Charger, and charging apparatus |
| US9293941B2 (en) | 2010-02-26 | 2016-03-22 | Sachio Takahashi | Charger and charging apparatus |
| JP5015335B1 (en) * | 2011-03-15 | 2012-08-29 | 幸男 高橋 | Charger and charger |
| WO2012123994A1 (en) * | 2011-03-15 | 2012-09-20 | Takahashi Sachio | Charger and charging device |
| WO2014069835A1 (en) * | 2012-10-30 | 2014-05-08 | Bae Youn-Soo | Load current regenerating circuit and electrical device having load current regenerating circuit |
| CN104798284A (en) * | 2012-10-30 | 2015-07-22 | 裵莲秀 | Load current regenerating circuit and electrical device having load current regenerating circuit |
| AU2013338937B2 (en) * | 2012-10-30 | 2015-10-29 | Youn-Soo Bae | Load current regenerating circuit and electrical device having load current regenerating circuit |
| US9806550B2 (en) | 2012-10-30 | 2017-10-31 | Youn-soo Bae | Load current regenerating circuit and electrical device having load current regenerating circuit |
| CN110605997A (en) * | 2018-06-15 | 2019-12-24 | 罗伯特·博世有限公司 | Method for carrying out a rapid charging process for an electrical energy store of an electrically driven vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3713470B2 (en) | 2005-11-09 |
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