PARALLEL CONNECTION STORAGE BATTERY SYSTEM AND CONTROL DEVICE THEREOF

PROBLEM TO BE SOLVED: To lengthen an operable time of parallel operation of storage batteries.SOLUTION: A parallel connection storage battery system comprises a control circuit including: a plurality of power conversion devices which include a plurality of DC/DC converters and a plurality of inverte...

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Bibliographische Detailangaben
Hauptverfasser:	KOBAYASHI TAKASHI, YANAGISAWA MINORU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To lengthen an operable time of parallel operation of storage batteries.SOLUTION: A parallel connection storage battery system comprises a control circuit including: a plurality of power conversion devices which include a plurality of DC/DC converters and a plurality of inverters for converting the output voltage of the DC/DC converters to AC voltage, and the respective AC outputs of which are connected in parallel so as to supply power to a load; and a plurality of storage batteries respectively connected to the plurality of power conversion devices. The control circuit is configured to control the output voltage of the inverters connected to the storage batteries on the basis of electric information about at least one of the output voltage and remaining capacity of the storage batteries.SELECTED DRAWING: Figure 1 【課題】蓄電池の並列運転における運転可能時間を長くする。【解決手段】ＤＣ／ＤＣコンバータと、前記ＤＣ／ＤＣコンバータの出力電圧を交流電圧に変換するインバータと、を複数有する複数の電力変換装置であって、それぞれの交流出力を並列接続し負荷に電力を供給する複数の電力変換装置と、複数の前記電力変換装置のそれぞれに接続される複数の蓄電池と、を有し、前記蓄電池の出力電圧又は残容量の少なくともいずれか一方の電気的情報に基づいて、蓄電池に接続されるインバータの出力電圧を制御する制御回路を有することを特徴とする並列接続蓄電池システム。【選択図】図１