VOLTAGE MEASURING SYSTEM OF POWER STORAGE DEVICE

PROBLEM TO BE SOLVED: To precisely obtain a continuous voltage value as a power storage amount of a power storage device irrespective of a sampling cycle while monitoring the state of a power storage element of the power storage device constituted of a plurality of unit cells of the power storage el...

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Bibliographische Detailangaben
Hauptverfasser:	AOYAMA YOSUKE, MIYATA TATSUJI
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE 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:	PROBLEM TO BE SOLVED: To precisely obtain a continuous voltage value as a power storage amount of a power storage device irrespective of a sampling cycle while monitoring the state of a power storage element of the power storage device constituted of a plurality of unit cells of the power storage elements. SOLUTION: This power storage system includes a means that detects a voltage of each unit cell of a power storage device and obtains a total voltage of the power storage device on the basis of the detected values so as to output it as a digital measured value Vdig, a means that outputs, as an analogue measured value "iana", a current flowing between the power storage device and a load connected thereto, a means that outputs a continuous voltage value Vhat as a total voltage of the power storage device by using a mathematic model on the basis of the analogue measured value "iana" of the current, and a means that calibrates the continuous voltage value Vhat by using the digital measured value Vdig of the voltage. COPYRIGHT: (C)2010,JPO&INPIT