Capacity determination device and method for storage battery system, storage battery system based on the same, and power supply system provided with the storage battery system

摘要

A capacity determination device that determines the capacity of a storage battery of a storage battery system used in combination with a wind power generation system includes an input unit and a processing unit. The input unit stores data on operating conditions that are conditions for at least one of the range of the charge / discharge output of the storage battery and the remaining amount of storage and the output of the wind power generation system and the output of the storage battery system that must be satisfied for protection of the storage battery. Input the output fluctuation suppression condition data, which is a condition for the fluctuation of the combined output with respect to time, that is required to be satisfied by the combined output to the combined power system, and the power generation output data indicating the time series output of the wind power generation system To do. The processing unit determines the capacity of the storage battery using, as an index, the amount of violation calculated from the power generation output data and the capacity of the storage battery so as to satisfy the operation condition and indicating the degree of deviation from the output fluctuation suppression condition.