JP3770212B2 - Battery device control method - Google Patents

Battery device control method Download PDF

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Publication number
JP3770212B2
JP3770212B2 JP2002184692A JP2002184692A JP3770212B2 JP 3770212 B2 JP3770212 B2 JP 3770212B2 JP 2002184692 A JP2002184692 A JP 2002184692A JP 2002184692 A JP2002184692 A JP 2002184692A JP 3770212 B2 JP3770212 B2 JP 3770212B2
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battery
switching
unit
time
input line
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JP2004032881A (en
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慎一 阪
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NEC Corp
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NEC Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

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  • Stand-By Power Supply Arrangements (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
  • Tests Of Electric Status Of Batteries (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明はバッテリ装置の制御方法に関し、特に瞬断等が頻繁に発生する環境に用いられるバッテリ装置の制御方法に関する。
【０００２】
【従来の技術】
従来、コンピュータシステム等に用いられる電源装置（バッテリ装置）として、例えば、外部の商用電源（交流電源）を整流して直流とし、その出力をＤＣ／ＤＣコンバータに出力し、このＤＣ／ＤＣコンバータの出力を負荷に供給するように構成されている。そして、外部電源が正常に供給されているときには、内部に備えているバッテリ（充放電が可能な二次電池）に充電を行い、外部電源が断となったとき、これを検出してＤＣ／ＤＣコンバータに出力して、このＤＣ／ＤＣコンバータを介して負荷に電力を供給するものがある。
【０００３】
【発明が解決しようとする課題】
しかしながら、このような従来のバッテリ装置は、システム運用環境により瞬断等が頻繁に発生する環境では、瞬断が発生するたびに全てのバッテリの充放電を繰り返していた。そのため、バッテリ全体の寿命が短くなるという欠点があった。また、バッテリ交換時には、システム全体の縮退運転への切替え等が必要であり、そのような場合には、システム性能が低下するという欠点があった。
【０００４】
本発明の目的は、かかる課題に鑑みてなされたもので、瞬断等が頻繁に発生する環境であってもシステム性能を維持でき、また、バッテリ異常が発生したとき、システム性能を低下させることなくバッテリ交換が可能なバッテリ装置を提供することにある。
【０００５】
【課題を解決するための手段】
本発明のバッテリ装置の制御方法は、複数のバッテリからなるバッテリ群と、出力ラインとの接続を入力ラインまたは前記複数のバッテリに切り替える複数のバッテリ切替え部と、これら各バッテリ切替え部の切替え動作を制御するバッテリ制御部とを備え、
前記バッテリ制御部は、前記各バッテリ切替え部に対して切替えの指示を出すバッテリ切替え制御部と、前記バッテリ群に接続され常に各バッテリのバッテリ状態を監視しバッテリ状態信号を前記バッテリ切替え制御部に出力するバッテリ状態認識部と、前記バッテリ状態認識部が出力するバッテリ状態信号を基に各バッテリが前記バッテリ切換手段を介して前記出力ラインに接続されている時間である各バッテリの運転時間を計測する各バッテリ運転時間カウンタ部とを備えるたバッテリ装置の制御方法であって、
前記バッテリ切替え制御部は、前記入力ラインの電圧を監視し、電圧低下が発生したことを認識すると、充電が完了しているバッテリ、かつ、前記各バッテリ運転時間カウンタ部が計測した最もバッテリ運転累計時間の短いバッテリへの切替えを前記バッテリ切替え部に指示することを特徴とする。
【０００６】
バッテリ入力ラインの電圧低下の状態が所定の時間を超え、かつ、バッテリ出力ラインのバッテリ電圧が低下し、バッテリ運転中のバッテリの残容量が少なくなったと認識すると、次にバッテリ運転累計時間の短く、かつ、バッテリ充電が完了しているバッテリに切り替えることを特徴とする。
【０００７】
上述したように、本発明のバッテリ装置は、電源異常時にバッテリ群を構成しているバッテリ単体を個々に制御可能とする構成を取ることにより、バッテリ運転しているバッテリ以外のバッテリ寿命を短縮することなく運用可能となる。また、冗長構成をしているバッテリ単体の交換が可能となり、バッテリ交換時にシステム性能を低下させることなく交換が可能である。さらに、バッテリに異常が発生した場合は、切り離しを行うため、たとえ運用中であっても、故障したバッテリの交換がシステム性能を低下させることなく可能となる。
【０００８】
【発明の実施の形態】
次に、本発明について図面を参照して詳細に説明する。図1は、本発明の一実施の形態を示すブロック図である。
【０００９】
図１を参照すると、本発明のバッテリ装置は、バッテリ単体であるバッテリ５ａ，バッテリ５ｂ，…，バッテリ５ｎからなるバッテリ群５と、バッテリライン１４ａ，バッテリライン１４ｂ，…，バッテリライン１４ｎを介して各バッテリ５ａ，５ｂ，…，５ｎを入力ライン（以下バッテリ入力ライン１１という）またはバッテリライン１４に切り替える複数のバッテリ切替え部４ａ，バッテリ切替え部４ｂ，…，バッテリ切替え部４ｎと、これらのバッテリ切替え部４ａ，４ｂ，…，４ｎの切替え動作を制御するバッテリ制御部１とから構成されている。また、このバッテリ制御部１は、バッテリ切替え制御部２とバッテリ状態認識部３とを備えている。
【００１０】
バッテリ状態認識部３は、バッテリライン１４に接続されており、常に各バッテリ５ａ，５ｂ，…，５ｎの状態（電圧）を監視し、その結果をバッテリ状態信号１３としてバッテリ切替え制御部２に出力する。
【００１１】
バッテリ切替え制御部２は、バッテリ状態信号１３を入力しバッテリ入力ライン１１の電圧低下が発生したことを認識すると、バッテリ切替え部４ａ，４ｂおよび４ｎに対してバッテリ切替え信号１２を出力し、出力ライン（以下バッテリ出力ライン１５という）への出力をバッテリ入力ライン１１からバッテリライン１４ａ，バッテリライン１４ｂ，…，バッテリライン１４ｎに接続するように切り替える。
【００１２】
また、バッテリ切替え制御部２は、バッテリ状態認識部３から入力しているバッテリ状態信号１３を監視するとともに、バッテリ入力ライン１１の電圧低下の状態が一定時間を超え、かつバッテリの電圧低下が発生したことを認識すると、同様にバッテリ切替え信号１２を出力し、バッテリ５ａから５ｂ，…，５ｎへと順次切り替える。
【００１３】
続いて、上述したように構成された本実施例の動作について図を参照して説明する。図２は、図１の動作のタイミングを示すタイミングチャートである。
【００１４】
図１および図２を参照すると、通常、バッテリ出力ライン１５には、バッテリ入力ライン１１→バッテリ切替え部→バッテリライン１４→バッテリ状態認識部３を介して外部直流電源（図示せず）から電力が供給されている。このとき、バッテリ制御部１内のバッテリ状態認識部３は、バッテリ入力ライン１１の電圧を常時監視してバッテリ状態信号１３をバッテリ切替え制御部２に出力している。
【００１５】
ここで、バッテリ切替え制御部２がバッテリ入力ライン１１に電圧低下が発生したことを認識すると、バッテリ切替え信号１２を出力して各バッテリ切替え部を順次作動させ外部直流電源からバッテリによる電力供給、すなわちバッテリ運転に切り替える。
【００１６】
また、バッテリ運転中において、バッテリ入力ライン１１の電圧低下の状態が所定の時間を超え、かつ、バッテリ電圧が低下したときは、現在使用しているバッテリから他のバッテリへ切り替える。
【００１７】
本発明では、バッテリ入力ラインの電圧低下の監視時間を、例えば１分間とし、バッテリ電圧が低下した場合には、例えば、バッテリを５ａ→５ｂ→５ｃ→へと順次に切り替える。
【００１８】
ここで、まず時刻Ｔ１にバッテリ入力ライン１１の電圧低下が発生すると、バッテリ切替え制御部２はバッテリ切替え信号１２をバッテリ切替え４ａに出力する。そうするとバッテリ切替え部４ａは、バッテリライン１４を介してバッテリ５ａのバッテリライン１４ａとバッテリ出力ライン１５とを接続し、バッテリ入力ライン１１による電力供給からバッテリ５ａによるバッテリ運転に切り替える。
【００１９】
次に、バッテリ入力ライン１１の電圧低下が時刻Ｔ２までの１分間継続し、かつ、その後にバッテリ状態認識部３が監視しているバッテリライン１４において、バッテリ５ａの電圧低下が認識されると、バッテリ切替え制御部２は、バッテリ切替え信号１２をバッテリ切替え４ｂに出力する。これにより、バッテリ切替え部４ａからバッテリ切替え部４ｂへの切替えを実施し、バッテリ運転をバッテリ５ａからバッテリ５ｂに切り替える。
【００２０】
また、バッテリ入力ライン１１の電圧低下の状態が時刻Ｔ１からＴ２までの１分間継続される前にバッテリ５ａの電圧低下が認識されたときは、バッテリ運転をバッテリ５ｂに切り替えた後に、バッテリ５ａの運転可能時間が期待値より少ないのでバッテリが故障しているものと判断し、この場合は“バッテリエラー”としてバッテリ５ａをバッテリ入力ライン１１およびバッテリライン１４から切り離す。
【００２１】
また、バッテリ切替え制御部２は、バッテリ５ｂにバッテリ運転が切り替わった後、バッテリ入力ライン１１の時間カウントを初期化して再度時間のカウントを実施する。
【００２２】
その後、バッテリ切替え制御部２は、バッテリ入力ライン１１の電圧低下の状態が時刻Ｔ３から時刻Ｔ４までの１分間継続され、かつ、その後にバッテリ状態認識部３が監視しているバッテリ５ｂの電圧低下が認識されたときはバッテリ切替え信号１２を出力し、上述と同様に、バッテリ切替え部４ｂ，４ｃの切替えを実施し、バッテリ運転をバッテリ５ｂからバッテリ５ｃに切替えを実施する。
【００２３】
次に、本発明の他の実施の形態について図面を参照して詳細に説明をする。図３は、本発明の他の実施の形態を示すブロック図である。
【００２４】
図３を参照すると、本実施例のバッテリ装置には、図１に示す構成とは異なり、バッテリ制御部１内にバッテリ状態認識部３から出力するバッテリ状態信号１３を基に各バッテリの運転時間を計測する各バッテリ運転時間カウンタ部６を備えている。ここで、各バッテリの運転時間とは、各バッテリ５ａ、５ｂ、…５ｎがバッテリ切換部４ａ、４ｂ、…４ｎを介してバッテリ出力ライン１５に接続されている時間である。
【００２５】
本実施例では、バッテリ切替え制御部２がバッテリ入力ライン１１の電圧を監視し電圧低下が発生したことを認識すると、バッテリ状態信号１３からバッテリ充電が完了しているバッテリ、および各バッテリ運転時間カウンタ部６から一番バッテリ運転累計時間の短いバッテリを確認する。
【００２６】
ここで、例えば、バッテリ５ａはバッテリ充電が実施されており、かつ、バッテリ運転累計時間が一番短いバッテリであると判断されると、バッテリ切替え制御部２は、バッテリ切替え部４ａにバッテリ切替え信号１２を出力しバッテリ運転に切り替える。
【００２７】
また、バッテリ入力ラインの電圧低下時間が一定時間を超えており、かつ、バッテリ出力ラインのバッテリ電圧が低下し、バッテリ運転中のバッテリの残容量が少なくなったと認識すると、バッテリ切替え制御部２は、次にバッテリ運転累計時間の短くバッテリ充電が実施されているバッテリ５ｂ（バッテリ５ｂは充電が実施されており、かつ、バッテリ運転累計時間が次に短いものと仮定する）に切り替える。
【００２８】
本実施例は、バッテリ運転への切替えの際に、バッテリ充電状態の確認とバッテリ運転の累計時間が一番短いもの確認して切替えを実施し、バッテリ運転に切り替えることにより、バッテリ運転が特定のバッテリに偏ることなく平準化がはかれる。
【００２９】
【発明の効果】
以上説明したように本発明のバッテリ装置の制御方法は、電源異常時にバッテリ群を構成しているバッテリ単体を個々に制御可能とする構成を採用することにより、特定のバッテリ寿命を短縮することなく運用できるという効果がある。
【００３０】
また、バッテリ異常が発生したバッテリ以外は通常運転の実施が可能であり、バッテリ交換時にバッテリにシステム全体のシステム性能を低下させることなくバッテリ交換が可能になるという効果がある。
【図面の簡単な説明】
【図１】 本発明の一実施の形態を示すブロック図である。
【図２】 図１の動作のタイミングを示すタイミングチャートである。
【図３】 本発明の他の実施の形態を示すブロック図である。
【符号の説明】
１ バッテリ制御部
２ バッテリ切替え制御部
３ バッテリ状態認識部
４ａ，４ｂ，４ｎ バッテリ切替え部
５ バッテリ群
５ａ，５ｂ，５ｎ バッテリ
６ 各バッテリ運転時間カウンタ部
１１ バッテリ入力ライン
１２ バッテリ切替え信号
１３ バッテリ状態信号
１４ バッテリライン
１４ａ，１４ｂ，１４ｎ バッテリライン
１５ バッテリ出力ライン[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a control method of a battery apparatus, relates particularly a control method of a battery device used in an environment where interruption or the like occurs frequently.
[0002]
[Prior art]
Conventionally, as a power supply device (battery device) used in a computer system or the like, for example, an external commercial power supply (AC power supply) is rectified into a direct current, and the output is output to a DC / DC converter. It is configured to supply output to a load. When the external power supply is normally supplied, the internal battery (chargeable / dischargeable secondary battery) is charged, and when the external power supply is cut off, this is detected and DC / Some output to a DC converter and supply power to a load via the DC / DC converter.
[0003]
[Problems to be solved by the invention]
However, such a conventional battery device repeats charging / discharging of all the batteries every time an instantaneous interruption occurs in an environment in which an instantaneous interruption occurs frequently due to the system operating environment. For this reason, there is a drawback that the life of the entire battery is shortened. Further, when the battery is replaced, it is necessary to switch the entire system to a degenerate operation. In such a case, there is a disadvantage that the system performance is lowered.
[0004]
An object of the present invention is made in view of such problems, and can maintain system performance even in an environment in which instantaneous interruptions occur frequently, and reduce system performance when a battery abnormality occurs. An object of the present invention is to provide a battery device that can replace the battery without any problem.
[0005]
[Means for Solving the Problems]
The battery device control method according to the present invention includes a battery group including a plurality of batteries, a plurality of battery switching units that switch the connection between an output line to an input line or the plurality of batteries, and a switching operation of each of these battery switching units. and a control for a battery controller,
The battery controller is connected to the battery group and constantly monitors the battery state of each battery and sends a battery state signal to the battery switching controller. Based on the battery status recognition unit that outputs and the battery status signal that the battery status recognition unit outputs, the operation time of each battery, which is the time during which each battery is connected to the output line via the battery switching means, is measured A battery device control method comprising each battery operating time counter unit,
When the battery switching control unit monitors the voltage of the input line and recognizes that a voltage drop has occurred, the battery is fully charged, and the most cumulative battery operation measured by each battery operation time counter unit The battery switching unit is instructed to switch to a battery having a short time.
[0006]
If it is recognized that the battery input line voltage drop state has exceeded the predetermined time, and the battery voltage of the battery output line has dropped to reduce the remaining battery capacity during battery operation, the battery operation accumulated time will be shortened next. And it switches to the battery in which battery charge is completed, It is characterized by the above-mentioned.
[0007]
As described above, the battery device of the present invention shortens the battery life other than the battery in operation by adopting a configuration in which individual batteries constituting the battery group can be individually controlled when the power supply is abnormal. It becomes possible to operate without any problem. In addition, it is possible to replace a single battery having a redundant configuration, and it is possible to replace the battery without degrading the system performance. Further, since the battery is disconnected when an abnormality occurs, it is possible to replace the failed battery without degrading the system performance even during operation.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of the present invention.
[0009]
Referring to FIG. 1, the battery device of the present invention includes a battery group 5 including a battery 5a, a battery 5b,..., A battery 5n as a single battery, and a battery line 14a, a battery line 14b,. A plurality of battery switching units 4a, battery switching units 4b,..., Battery switching units 4n for switching the batteries 5a, 5b,. The battery control unit 1 controls the switching operation of the units 4a, 4b,..., 4n. The battery control unit 1 includes a battery switching control unit 2 and a battery state recognition unit 3.
[0010]
The battery state recognition unit 3 is connected to the battery line 14 and always monitors the state (voltage) of each battery 5a, 5b,..., 5n, and outputs the result to the battery switching control unit 2 as a battery state signal 13. To do.
[0011]
When the battery switching control unit 2 inputs the battery state signal 13 and recognizes that the voltage drop of the battery input line 11 has occurred, the battery switching control unit 2 outputs the battery switching signal 12 to the battery switching units 4a, 4b and 4n, and outputs the output line. The output to the battery output line 15 (hereinafter referred to as the battery output line 15) is switched so as to be connected from the battery input line 11 to the battery line 14a, the battery line 14b,.
[0012]
Further, the battery switching control unit 2 monitors the battery state signal 13 input from the battery state recognition unit 3, and the voltage drop state of the battery input line 11 exceeds a predetermined time, and the battery voltage drop occurs. If it recognizes that it did, the battery switching signal 12 will be output similarly, and it will switch sequentially from the battery 5a to 5b, ..., 5n.
[0013]
Next, the operation of the present embodiment configured as described above will be described with reference to the drawings. FIG. 2 is a timing chart showing the timing of the operation of FIG.
[0014]
Referring to FIGS. 1 and 2, normally, power is supplied to the battery output line 15 from an external DC power source (not shown) via the battery input line 11 → the battery switching unit → the battery line 14 → the battery state recognition unit 3. Have been supplied. At this time, the battery state recognition unit 3 in the battery control unit 1 constantly monitors the voltage of the battery input line 11 and outputs a battery state signal 13 to the battery switching control unit 2.
[0015]
Here, when the battery switching control unit 2 recognizes that a voltage drop has occurred in the battery input line 11, the battery switching signal 12 is output to sequentially operate each battery switching unit, that is, power is supplied from the external DC power source by the battery, that is, Switch to battery operation.
[0016]
Further, during battery operation, when the voltage drop state of the battery input line 11 exceeds a predetermined time and the battery voltage drops, the current battery is switched to another battery.
[0017]
In the present invention, the monitoring time of the voltage drop of the battery input line is set to 1 minute, for example. When the battery voltage drops, for example, the battery is sequentially switched from 5a → 5b → 5c →.
[0018]
Here, when the voltage drop of the battery input line 11 first occurs at time T1, the battery switching control unit 2 outputs the battery switching signal 12 to the battery switching 4a. Then, the battery switching unit 4a connects the battery line 14a of the battery 5a and the battery output line 15 via the battery line 14, and switches from power supply by the battery input line 11 to battery operation by the battery 5a.
[0019]
Next, when the voltage drop of the battery input line 11 continues for one minute until the time T2, and then the battery line 14 monitored by the battery state recognition unit 3 recognizes the voltage drop of the battery 5a, The battery switching control unit 2 outputs a battery switching signal 12 to the battery switching 4b. Thereby, switching from the battery switching unit 4a to the battery switching unit 4b is performed, and the battery operation is switched from the battery 5a to the battery 5b.
[0020]
Further, when the voltage drop of the battery 5a is recognized before the voltage drop state of the battery input line 11 is continued for one minute from the time T1 to the time T2, after the battery operation is switched to the battery 5b, Since the operable time is shorter than the expected value, it is determined that the battery has failed. In this case, the battery 5a is disconnected from the battery input line 11 and the battery line 14 as a “battery error”.
[0021]
Further, after the battery operation is switched to the battery 5b, the battery switching control unit 2 initializes the time count of the battery input line 11 and again counts the time.
[0022]
Thereafter, the battery switching control unit 2 continues the voltage drop state of the battery input line 11 for one minute from time T3 to time T4, and thereafter the voltage drop of the battery 5b monitored by the battery state recognition unit 3 Is recognized, the battery switching signal 12 is output, the battery switching units 4b and 4c are switched as described above, and the battery operation is switched from the battery 5b to the battery 5c.
[0023]
Next, another embodiment of the present invention will be described in detail with reference to the drawings. FIG. 3 is a block diagram showing another embodiment of the present invention.
[0024]
Referring to FIG. 3, unlike the configuration shown in FIG. 1, the battery device of the present embodiment has an operation time of each battery based on a battery state signal 13 output from the battery state recognition unit 3 in the battery control unit 1. Each battery operation time counter unit 6 that measures the above is provided. Here, the operation time of each battery is the time during which each battery 5a, 5b,... 5n is connected to the battery output line 15 via the battery switching units 4a, 4b,.
[0025]
In this embodiment, when the battery switching control unit 2 monitors the voltage of the battery input line 11 and recognizes that a voltage drop has occurred, the battery that has been fully charged from the battery state signal 13 and each battery operating time counter The battery with the shortest accumulated battery operation time is checked from the unit 6.
[0026]
Here, for example, when it is determined that the battery 5a is charged with the battery and the accumulated battery operation time is the shortest, the battery switching control unit 2 sends a battery switching signal to the battery switching unit 4a. 12 is output to switch to battery operation.
[0027]
When the battery switching control unit 2 recognizes that the voltage drop time of the battery input line has exceeded a certain time, the battery voltage of the battery output line has dropped, and the remaining battery capacity during battery operation has decreased. Then, the battery is switched to the battery 5b in which the battery charging is performed for a short time (assuming that the battery 5b is charged and the battery operating cumulative time is the next shortest).
[0028]
In this embodiment, when switching to battery operation, the battery charge state and the cumulative operation time of the battery operation are confirmed to be the shortest. Leveling is achieved without being biased toward the battery.
[0029]
【The invention's effect】
As described above, the battery device control method of the present invention employs a configuration that enables individual control of individual batteries constituting the battery group when the power supply is abnormal, thereby reducing a specific battery life. There is an effect that it can be used.
[0030]
Moreover, normal operation can be performed except for the battery in which the battery abnormality has occurred, and there is an effect that the battery can be replaced without degrading the system performance of the entire system.
[Brief description of the drawings]
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a timing chart showing the timing of the operation of FIG.
FIG. 3 is a block diagram showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Battery control part 2 Battery switching control part 3 Battery state recognition part 4a, 4b, 4n Battery switching part 5 Battery group 5a, 5b, 5n Battery 6 Each battery operation time counter part 11 Battery input line 12 Battery switching signal 13 Battery state signal 13 Battery state signal 14 battery line 14a, 14b, 14n battery line 15 battery output line

Claims (2)

複数のバッテリからなるバッテリ群と、出力ラインとの接続を入力ラインまたは前記複数のバッテリに切り替える複数のバッテリ切替え部と、これら各バッテリ切替え部の切替え動作を制御するバッテリ制御部とを備え、
前記バッテリ制御部は、前記各バッテリ切替え部に対して切替えの指示を出すバッテリ切替え制御部と、前記バッテリ群に接続され常に各バッテリのバッテリ状態を監視しバッテリ状態信号を前記バッテリ切替え制御部に出力するバッテリ状態認識部と、前記バッテリ状態認識部が出力するバッテリ状態信号を基に各バッテリが前記バッテリ切換手段を介して前記出力ラインに接続されている時間である各バッテリの運転時間を計測する各バッテリ運転時間カウンタ部とを備えるたバッテリ装置の制御方法であって、
前記バッテリ切替え制御部は、前記入力ラインの電圧を監視し、電圧低下が発生したことを認識すると、充電が完了しているバッテリ、かつ、前記各バッテリ運転時間カウンタ部が計測した最もバッテリ運転累計時間の短いバッテリへの切替えを前記バッテリ切替え部に指示することを特徴とするバッテリ装置の制御方法。 Includes a battery group composed of a plurality of batteries, a plurality of battery switching unit for switching the input line or the plurality of batteries connected to the output line, and a battery control unit for controlling the switching operations of each battery switching unit,
The battery controller is connected to the battery group and constantly monitors the battery state of each battery and sends a battery state signal to the battery switching controller. Based on the battery status recognition unit that outputs and the battery status signal that the battery status recognition unit outputs, the operation time of each battery, which is the time during which each battery is connected to the output line via the battery switching means, is measured A battery device control method comprising each battery operating time counter unit,
When the battery switching control unit monitors the voltage of the input line and recognizes that a voltage drop has occurred, the battery is fully charged, and the most cumulative battery operation measured by each battery operation time counter unit A method for controlling a battery device, comprising: instructing the battery switching unit to switch to a battery having a short time. バッテリ入力ラインの電圧低下の状態が所定の時間を超え、かつ、バッテリ出力ラインのバッテリ電圧が低下し、バッテリ運転中のバッテリの残容量が少なくなったと認識すると、次にバッテリ運転累計時間の短く、かつ、バッテリ充電が完了しているバッテリに切り替えることを特徴とする請求項１に記載のバッテリ装置の制御方法。If it is recognized that the battery input line voltage drop state has exceeded a predetermined time, and the battery voltage of the battery output line has dropped to reduce the remaining battery capacity during battery operation, the battery accumulated operation time is shortened next. The battery device control method according to claim 1, wherein the battery is switched to a battery that has been fully charged.
JP2002184692A 2002-06-25 2002-06-25 Battery device control method Expired - Fee Related JP3770212B2 (en)

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WO2012097519A1 (en) * 2011-01-21 2012-07-26 东协金属科技（深圳）有限公司 Protecting circuit for parallel connected battery banks
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