Title:
BATTERY ENERGY STORAGE SYSTEM AND MANAGEMENT METHOD FOR BATTERY ENERGY STORAGE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/071004
Kind Code:
A1
Abstract:
Provided are: a battery energy storage system that extracts a deterioration parameter for a material of secondary batteries constituting a BESS without stopping the operation of the entire BESS, thereby takes into account not only SOH diagnosis and prediction but also abnormal deterioration, and thus makes it possible for the owner of the BESS to suitably perform operation and maintenance of the BESS; and a management method for the battery energy storage system. The battery energy storage system (BESS) comprises a state management unit that selects a battery bank to be diagnosed having less than 50% of total capacity from among a plurality of battery banks constituting the BESS and extracts a deterioration parameter for a material constituting at least one of battery cells, battery modules, and battery racks constituting the selected battery bank. The state management unit executes charging and discharging on the basis of a request from a grid when extracting the deterioration parameter.
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Inventors:
KAWAJI JUN (JP)
KONISHI HIROAKI (JP)
KOMATSU DAIKI (JP)
KONISHI HIROAKI (JP)
KOMATSU DAIKI (JP)
Application Number:
PCT/JP2023/034636
Publication Date:
April 04, 2024
Filing Date:
September 25, 2023
Export Citation:
Assignee:
HITACHI LTD (JP)
International Classes:
G01R31/392; G01R31/367; G01R31/3842; G01R31/385; G01R31/389; H01M10/48; H02J3/32; H02J7/00; H02J7/34
Attorney, Agent or Firm:
POLAIRE I.P.C. (JP)
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