STORAGE BATTERY MANAGEMENT APPARATUS, METHOD, AND PROGRAM

摘要

A storage battery management device according to an embodiment manages a plurality of battery units in a storage battery system including the battery units having a plurality of battery cells and a power adjustment device connected to the battery units via respective contactors and to a main circuit. In the management device, a minimum value determination unit, from the battery units in which a difference between the maximum and the minimum cell voltages of the battery cells forming each of the battery units, determines the minimum value of the minimum cell voltage, and a controller controls a cell balance process of the battery unit managed by itself by using the minimum value of the minimum cell voltage as a cell balance target voltage. Even if an abnormality occurs in any battery cell (or cell module) forming the battery units, this configuration can prevent an influence and provide enhanced utilization.