POWER STORAGE SYSTEM

PROBLEM TO BE SOLVED: To suppress a fuse from getting melted although there is no need to melt a fuse in a plurality of parallel-connected fuses.SOLUTION: A power storage system has: a power storage device (10) including a plurality of power storage elements (12) connected in parallel, a plurality o...

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Bibliographic Details
Main Authors KAIYA HIROYUKI, NISHI YUJI, TAKAHASHI KENJI
Format Patent
LanguageEnglish
Published 02.10.2014
Subjects
BASIC ELECTRIC ELEMENTS
CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SYSTEMS FOR STORING ELECTRIC ENERGY
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Summary:PROBLEM TO BE SOLVED: To suppress a fuse from getting melted although there is no need to melt a fuse in a plurality of parallel-connected fuses.SOLUTION: A power storage system has: a power storage device (10) including a plurality of power storage elements (12) connected in parallel, a plurality of fuses (12b) connected in parallel with each of the plurality of power storage elements, and a controller (40) for controlling the charge/discharge of the power storage device. The controller uses the voltage values of the plurality of power storage elements and the internal resistance of each power storage element to calculate a current value flowing in each power storage element. When the amount of damage to each fuse corresponding to the calculated current value is larger than a threshold, the controller limits the charge and/or the discharge of the power storage device.
Bibliography:Application Number: JP20130061060