POWER MANAGEMENT SYSTEM

Provided is a power management system, wherein charging/discharging is conducted while reliably preventing overcharging/over-discharging, and charging/discharging control of a storage-battery system (22) comprising a plurality of storage battery units is conducted. An overall storage-battery-unit ma...

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Bibliographische Detailangaben
Hauptverfasser:	SAKAI SOUICHI, OKUDA YASUO, IWASAKI TOSHIYA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SYSTEMS FOR STORING ELECTRIC ENERGY TESTING
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Beschreibung
Zusammenfassung:	Provided is a power management system, wherein charging/discharging is conducted while reliably preventing overcharging/over-discharging, and charging/discharging control of a storage-battery system (22) comprising a plurality of storage battery units is conducted. An overall storage-battery-unit management unit (16) detects voltages of storage-battery packs composing the storage-battery system (22), voltages of unit cells composing the storage-battery packs, and serial voltages of the storage battery units (24), each of which comprises a plurality of storage-battery packs connected in series. Charging is stopped when either of these voltages exceeds an upper limit value, and discharging is stopped when either of these voltages is less than a lower limit value.