JP2968093B2 - Battery power storage system - Google Patents
Battery power storage systemInfo
- Publication number
- JP2968093B2 JP2968093B2 JP3179235A JP17923591A JP2968093B2 JP 2968093 B2 JP2968093 B2 JP 2968093B2 JP 3179235 A JP3179235 A JP 3179235A JP 17923591 A JP17923591 A JP 17923591A JP 2968093 B2 JP2968093 B2 JP 2968093B2
- Authority
- JP
- Japan
- Prior art keywords
- lead
- secondary battery
- battery
- free secondary
- power
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M16/00—Structural combinations of different types of electrochemical generators
Description
【０００１】[0001]
【産業上の利用分野】本発明は鉛非使用二次電池を電力
系統に連系して運転する電池電力貯蔵システムに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery power storage system for operating a lead-free secondary battery in connection with a power system.
【０００２】[0002]
【従来の技術】最近、エネルギ貯蔵技術の開発が進めら
れている。エネルギ貯蔵技術は、電力の余る夜間の電力
を系統から、交直変換器を介して二次電池に充電し、電
力の不足する夜間に放電するといった電力の負荷平準化
に利用でき、エネルギの有効利用の実現を目指してい
る。とくに二次電池を用いたシステムでは低コスト、高
エネルギ密度、及び小形化した新型二次電池の開発が進
められている。2. Description of the Related Art Recently, energy storage technology has been developed. Energy storage technology can be used for power leveling such as charging nighttime power from the grid through the AC / DC converter to the secondary battery and discharging it at night when power is insufficient. Aiming to achieve. In particular, in a system using a secondary battery, development of a low-cost, high-energy-density, and miniaturized new-type secondary battery is being promoted.
【０００３】一般に新型二次電池としては、ナトリウム
−イオン電池、亜鉛−塩素電池、亜鉛−臭素電池、レド
ックスフロー電池等のように鉛非使用二次電池がある
が、これらの鉛非使用二次電池は起動用補機が必要なた
め、電力系統の異常時に系統しゃ断器を切り離すと補機
が停止するため、非常用の電源として独立運転できなか
った。また二次電池として鉛蓄電池を用いた場合、電力
系統の異常時に、独立運転はできるが高コスト、低エネ
ルギ密度及び大形であるといった問題点があった。[0003] In general, new secondary batteries include lead-free secondary batteries such as sodium-ion batteries, zinc-chlorine batteries, zinc-bromine batteries, redox flow batteries and the like. Since the battery requires auxiliary equipment for starting, the auxiliary equipment stops when the system breaker is disconnected in the event of an abnormality in the power system, so that independent operation as an emergency power supply was not possible. In addition, when a lead storage battery is used as a secondary battery, there is a problem in that when the power system is abnormal, independent operation can be performed, but the cost, the energy density, and the size are large.
【０００４】二次電池として鉛非使用二次電池を用いた
従来の構成例を図３に示す。図３において、電力系統
（１）は、系統しゃ断器（２）、図ではＩＮＶとして示
す交直変換装置（３）を介して、鉛非使用二次電池
（４）に接続される。また母線（１３）には一般負荷
（６）及び鉛非使用二次電池運転用の補機（５）が接続
される。このシステムでは起動から電力系統との充放
電、電力系統異常時の電力系統からの解列までは問題な
く行うことができるが、系統しゃ断器（２）が開路され
ると、補機（５）への電力供給源がなくなり、停止状態
となるため、鉛非使用二次電池の独立運転はできず、電
力系統の復帰を待つしかなかった。FIG. 3 shows a conventional configuration example using a lead-free secondary battery as a secondary battery. In FIG. 3, a power system (1) is connected to a lead-free secondary battery (4) via a system breaker (2) and an AC / DC converter (3) shown as INV in the figure. The bus (13) is connected to a general load (6) and an auxiliary machine (5) for operating a lead-free secondary battery. In this system, from start-up to charging / discharging with the power system and disconnection from the power system when the power system is abnormal, it can be performed without any problem. However, when the system breaker (2) is opened, the auxiliary equipment (5) Since the power supply source to the power supply disappears and the power supply is stopped, the independent operation of the lead-free secondary battery cannot be performed, and the only option is to wait for the power system to return.
【０００５】また、二次電池として鉛蓄電池を用いた構
成例を図４に示す。このシステムでは、鉛蓄電池（８）
は補機（５）を必要としないため、電力系統異常時に非
常用の電源として独立運転できる。しかし鉛蓄電池
（８）はコストが高く、またエネルギ密度が低い。大形
である等の問題点がある。FIG. 4 shows a configuration example using a lead storage battery as a secondary battery. In this system, the lead storage battery (8)
Does not require the auxiliary equipment (5), and can be operated independently as an emergency power supply when the power system is abnormal. However, the lead storage battery (8) has a high cost and a low energy density. There are problems such as large size.
【０００６】[0006]
【発明が解決しようとする課題】以上、説明したように
従来の構成には、次のような問題点がある。すなわち、
二次電池として鉛非使用二次電池を用いた構成（図３）
の場合、電力系統の異常時に鉛非使用二次電池は独立運
転できない。また、二次電池として鉛蓄電池を用いた構
成（図４）の場合、高コスト、低エネルギ密度、及び大
形となる。As described above, the conventional configuration has the following problems. That is,
Configuration using lead-free secondary battery as secondary battery (Fig. 3)
In the case of, the lead-free secondary battery cannot operate independently when the power system is abnormal. In the case of a configuration using a lead storage battery as the secondary battery (FIG. 4), the cost is high, the energy density is low, and the size is large.
【０００７】本発明は、このような問題点を解決し、低
コストで高エネルギ密度であり、小形化でき、かつ独立
運転ができる電池電力貯蔵システムを提供することを目
的とする。An object of the present invention is to provide a battery power storage system which solves such problems and has a low cost, a high energy density, a small size, and an independent operation.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するため
に、本発明においては、鉛非使用二次電池に交直変換装
置を接続し、電力系統に連系するシステムにおいて、前
記鉛非使用二次電池にその電池の動作用補機の起動用電
源として起動用鉛蓄電池又はＣ−Ｒ回路を並列に接続
し、切換制御装置による運転の条件に応じて切換のでき
る切換器を鉛非使用二次電池及び起動用鉛蓄電池又はＣ
−Ｒ回路それぞれに設ける。In order to achieve the above object, according to the present invention, there is provided a system in which an AC / DC converter is connected to a lead-free secondary battery and connected to an electric power system. A lead-acid battery for starting or a CR circuit is connected in parallel to the secondary battery as a power source for starting auxiliary equipment for operating the battery, and a switching device capable of switching according to the operating conditions of the switching control device is lead-free. Secondary battery and lead-acid battery for starting or C
-Provided for each R circuit.
【０００９】[0009]
【作用】系統連系運転する場合は、鉛非使用二次電池を
用いたロードレベリング運転を行う。電力系統が異常等
で系統しゃ断器が引外された場合、切換器を用い、起動
用鉛蓄電池を交直変換装置に接続し、起動用鉛蓄電池の
放電電力により補機を起動する。このことにより鉛非使
用二次電池が運転可能となった時点で、切換器を用いて
鉛非使用二次電池を交直変換装置と接続する。また、こ
の鉛非使用二次電池の交直変換装置接続と共に鉛蓄電池
は交直変換装置から切り離すことにより、鉛非使用二次
電池を用いた独立運転が可能となる。また、コンデンサ
とそのコンデンサの放電時間を長くするための抵抗とか
らなるＣ−Ｒ回路を、前記起動用鉛蓄電池の代りに用い
ても、補機の起動と、鉛非使用二次電池を用いた独立運
転が可能となる。[Function] In the case of system interconnection operation, load leveling operation using a lead-free secondary battery is performed. When the system breaker is tripped due to an abnormality in the power system or the like, the lead-acid battery for starting is connected to the AC / DC converter using the switching device, and the auxiliary machine is started by the discharged power of the lead-acid battery for starting. As a result, when the lead-free secondary battery becomes operable, the lead-free secondary battery is connected to the AC / DC converter using the switch. By disconnecting the lead storage battery from the AC / DC converter together with the connection of the AC / DC converter of the lead-free secondary battery, independent operation using the lead-free secondary battery becomes possible. Further, even if a CR circuit composed of a capacitor and a resistor for extending the discharging time of the capacitor is used instead of the starting lead storage battery, the starting of the auxiliary equipment and the use of a lead-free secondary battery are not required. Independent operation is possible.
【００１０】[0010]
【実施例】（実施例１）以下、本発明の第１の実施例に
ついて図１を参照して説明する。尚、従来例１の図３、
図４と同一部分には同一符号を付して説明を省略する。(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIG. In addition, FIG.
The same parts as those in FIG.
【００１１】図１において、電力系統（１）には系統し
ゃ断器（２）を介して交直変換装置（３）と運転用補機
（５）と一般負荷（６）とを並列に接続する。交直変換
装置（３）には電力系統異常時に鉛非使用二次電池
（４）と、運転用補機（５）の起動用として短時間容量
の起動用鉛蓄電池（８ａ）とをそれぞれ切換器（７），
（９）を介して並列に接続する。また電力系統異常時、
異常信号の検出により鉛非使用二次電池（４）と起動用
鉛蓄電池（８ａ）との切換器（７），（９）の動作を制
御する切換制御装置（１０）を設ける。In FIG. 1, an AC / DC converter (3), an operating accessory (5) and a general load (6) are connected in parallel to a power system (1) via a system breaker (2). The AC / DC converter (3) includes a lead-free secondary battery (4) and a short-time start-up lead-acid battery (8a) for starting the operation auxiliary machine (5) when the power system is abnormal. (7),
Connect in parallel via (9). Also, when the power system is abnormal,
A switching control device (10) is provided for controlling the operation of switches (7) and (9) between a lead-free secondary battery (4) and a lead storage battery (8a) upon detection of an abnormal signal.
【００１２】次に本実施例１の作用を説明する。まず、
系統連系に入る場合は、系統しゃ断器（２）を投入し
て、電力系統（１）の電圧を母線（１３）に印加する。
鉛非使用二次電池運転用補機（５）が起動した後、切換
器（７）を投入し交直変換装置（３）を介して鉛非使用
二次電池（４）の充放電を行い、一般負荷（６）へエネ
ルギを有効に供給し、ロードレベリング運転を行う。こ
の時、切換器（９）は起動用鉛蓄電池（８ａ）を満充電
させ、満充電後切換器（９）は引外すこととする。Next, the operation of the first embodiment will be described. First,
When entering the system interconnection, the system breaker (2) is turned on to apply the voltage of the power system (1) to the bus (13).
After the lead-free secondary battery operation auxiliary device (5) is started, the switch (7) is turned on to charge and discharge the lead-free secondary battery (4) via the AC / DC converter (3). The energy is effectively supplied to the general load (6), and the load leveling operation is performed. At this time, the switch (9) fully charges the starting lead storage battery (8a), and after the full charge, the switch (9) is tripped.
【００１３】また、電力系統（１）に異常が発生した場
合、系統しゃ断器（２）を電力系統（１）から切り離
し、電力系統異常信号を切換制御装置（１０）へ送信す
る。When an abnormality occurs in the power system (1), the system breaker (2) is disconnected from the power system (1), and a power system abnormality signal is transmitted to the switching control device (10).
【００１４】切換制御装置（１０）は電力系統異常信号
を検出すると鉛非使用二次電池用切換器（７）を引外
し、起動用鉛蓄電池の切換器（９）を投入する。When detecting the power system abnormality signal, the switching control device (10) trips the switch (7) for the lead-free secondary battery and turns on the switch (9) of the lead-acid battery for startup.
【００１５】このことにより、起動用鉛蓄電池（８ａ）
の放電電力を用い、鉛非使用二次電池動作用補機（５）
を起動させる。補機起動後、鉛非使用二次電池（４）が
運転可能となった時点で鉛非使用二次電池用切換器
（７）を投入すると共に起動用鉛蓄電池の切換器（９）
を引外す。以上の操作により、電力系統異常時、鉛非使
用二次電池を用いた独立運転が可能となる。Thus, the lead-acid storage battery (8a)
Auxiliary machine for secondary battery operation using lead-free battery (5)
Start. After the auxiliary equipment is started, when the lead-free secondary battery (4) becomes operable, the lead-free secondary battery switcher (7) is turned on and the lead-acid storage battery switcher (9) for startup.
Trip. By the above operation, when the power system is abnormal, independent operation using the lead-free secondary battery can be performed.
【００１６】以上説明したように、上記実施例１では電
力系統の信号を切換制御装置により検出し、補機起動用
の鉛蓄電池（８ａ）及び鉛非使用二次電池（４）を切換
えることによって系統との連系運転、及び鉛非使用二次
電池の独立運転が可能となり、一般負荷へ有効に電力を
供給できる。しかも起動用鉛蓄電池（８ａ）を短時間容
量分のみ設置し、常時運転用としては鉛非使用二次電池
を用いるため、低コスト、高エネルギ密度及び小形の電
池電力貯蔵システムが実現できる。As described above, in the first embodiment, the signal of the power system is detected by the switching control device, and the lead storage battery (8a) for starting auxiliary equipment and the lead-free secondary battery (4) are switched. The grid-connected operation and the independent operation of the lead-free secondary battery can be performed, and power can be effectively supplied to a general load. In addition, since the lead-acid storage battery (8a) for starting is provided only for a short time and a secondary battery that does not use lead is used for constant operation, a low-cost, high-energy-density, and compact battery power storage system can be realized.
【００１７】（実施例２）次に図２に第２の実施例とし
て、鉛非使用二次電池動作用補機の起動用電源として、
実施例１の起動用鉛蓄電池（８ａ）の代りに短時間容量
のコンデンサ（１２）と放電時間を長くするための抵抗
（１１）を直列に接続したＣ−Ｒ回路（１４）を用いた
ものを示す。(Embodiment 2) Next, FIG. 2 shows, as a second embodiment, a power supply for starting a lead-free secondary battery operating auxiliary machine.
A circuit using a CR circuit (14) in which a short-time capacitor (12) and a resistor (11) for extending a discharge time are connected in series instead of the starting lead-acid battery (8a) of the first embodiment. Is shown.
【００１８】このようにしても鉛非使用二次電池を独立
運転できる。In this manner, the lead-free secondary battery can be operated independently.
【００１９】[0019]
【発明の効果】以上述べたように、本発明による電池電
力貯蔵システムを用いれば切換制御装置で電力系統の異
常を検知し、切換器を開閉することで、起動から連系運
転、連系運転から鉛非使用二次電池の独立運転、独立運
転から再連系運転を従来の鉛蓄電池のように簡単におこ
なうことが可能となり、電力を安定して一般負荷へ供給
できる。As described above, when the battery power storage system according to the present invention is used, the switching control device detects an abnormality in the power system and opens and closes the switching device, so that the connection operation from the start, the interconnection operation, and the interconnection operation. As a result, independent operation of a lead-free secondary battery, and independent operation to re-connection operation can be performed easily as in a conventional lead-acid battery, and power can be stably supplied to a general load.
【図１】本発明の第１の実施例を示す単線回路図。FIG. 1 is a single-wire circuit diagram showing a first embodiment of the present invention.
【図２】本発明の第２の実施例を示す単線回路図。FIG. 2 is a single-wire circuit diagram showing a second embodiment of the present invention.
【図３】従来の第１例を示す単線回路図。FIG. 3 is a single-wire circuit diagram showing a first conventional example.
【図４】従来の第２例を示す単線回路図。FIG. 4 is a single-wire circuit diagram showing a second conventional example.
１…電力系統 ２…受電しゃ断器 ３…交直変換装置 ４…鉛非使用二次電池 ５…鉛非使用二次電池の運転用補機 ６…一般負荷 ７…切換器 ８…鉛蓄電池 ８ａ…起動用鉛蓄電池 ９…切換器 １０…切換制御装置 １１…抵抗 １２…コンデンサ １３…母線 １４…Ｃ−Ｒ回路 DESCRIPTION OF SYMBOLS 1 ... Electric power system 2 ... Power receiving circuit breaker 3 ... AC / DC converter 4 ... Lead-free secondary battery 5 ... Auxiliary equipment for operation of lead-free secondary battery 6 ... General load 7 ... Switching device 8 ... Lead storage battery 8a ... Activation Lead storage battery for use 9 ... Switching device 10 ... Switching control device 11 ... Resistance 12 ... Capacitor 13 ... Bus 14 ... C-R circuit
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平１−307175（ＪＰ，Ａ) 特開 平２−311134（ＪＰ，Ａ) 特開 昭50−35628（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) H02J 7/00 - 7/35 H02J 9/00 - 11/00 H01M 8/18 H01M 8/04 H02J 3/38 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-307175 (JP, A) JP-A-2-311134 (JP, A) JP-A-50-35628 (JP, A) (58) Field (Int.Cl. 6 , DB name) H02J 7/00-7/35 H02J 9/00-11/00 H01M 8/18 H01M 8/04 H02J 3/38
Claims (1)
を電力系統に連系するシステムにおいて、鉛非使用二次
電池の動作用補機の起動用電源として起動用鉛蓄電池又
はＣ−Ｒ回路を前記鉛非使用二次電池に並列に接続し、
切換制御装置によって開閉される切換器を鉛非使用二次
電池及び起動用鉛蓄電池又はＣ−Ｒ回路それぞれに設け
たことを特徴とする電池電力貯蔵システム。In a system in which a lead-free secondary battery is connected to a power system via an AC / DC converter, a starting lead-acid battery or a C-type lead-acid battery is used as a power source for starting auxiliary equipment for operating the lead-free secondary battery. Connecting an R circuit in parallel to the lead-free secondary battery,
A battery power storage system, wherein a switching device opened and closed by a switching control device is provided in each of a lead-free secondary battery and a lead storage battery for start-up or a CR circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3179235A JP2968093B2 (en) | 1991-07-19 | 1991-07-19 | Battery power storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3179235A JP2968093B2 (en) | 1991-07-19 | 1991-07-19 | Battery power storage system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0530679A JPH0530679A (en) | 1993-02-05 |
| JP2968093B2 true JP2968093B2 (en) | 1999-10-25 |
Family
ID=16062307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3179235A Expired - Fee Related JP2968093B2 (en) | 1991-07-19 | 1991-07-19 | Battery power storage system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2968093B2 (en) |
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|---|---|---|---|---|
| JP4596712B2 (en) * | 2001-09-11 | 2010-12-15 | 関西電力株式会社 | Power storage system |
| JP4561030B2 (en) * | 2002-08-29 | 2010-10-13 | カシオ計算機株式会社 | Electronics |
| JP4837632B2 (en) * | 2007-07-24 | 2011-12-14 | フジプレアム株式会社 | Power storage type solar power generation system |
| JP4795312B2 (en) * | 2007-07-24 | 2011-10-19 | フジプレアム株式会社 | Power storage type solar power generation system |
-
1991
- 1991-07-19 JP JP3179235A patent/JP2968093B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457600A (en) * | 2020-03-06 | 2020-07-28 | 六安市同心畅能电子科技有限公司 | Zero-power-consumption standby circuit of forced-ventilated type gas water heater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0530679A (en) | 1993-02-05 |
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|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |