Patent ID: 11923714
Assignee: MITSUBISHI ELECTRIC CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC H

Claim 8:
9. A method for controlling a storage battery system, the storage battery system having a plurality of storage battery modules connected in series and each of the storage battery modules including a battery and a DC/DC converter connected to the battery;
the method comprising the steps of:
calculating state information on each of the batteries of the storage battery modules;
calculating a power conversion efficiency of each of the DC/DC converters of the storage battery modules; and
selecting one or a plurality of storage battery modules to be used while the storage battery system is charged or discharged and determining a charge power or a discharge power of each of the selected one or plurality of storage battery modules, based on the state information on the batteries and the power conversion efficiencies of the DC/DC converters,
wherein the selecting the one or the plurality of storage battery modules to be used while the storage battery system is charged or discharged includes stopping use of at least one of the plurality of storage battery modules.