Wind-driven electricity generation system of type having storage battery, and device for controlling charge and discharge of storage battery

摘要

An instantaneous response component representing the actual amount of power generation by a wind-driven electricity generator (1) is detected, and a charge/discharge control section (14) controls charge and discharge of a storage battery (4) according to variation in the instantaneous response component. Further, based on the amount of variation in the instantaneous response component, a pattern information selection section (16) selects, out of patterns, a control region to be allocated for charge/discharge control performed according to variation in the instantaneous response component and applies the selected pattern to charge/discharge control performed by the charge/discharge control section (14). By this, an appropriate control region having less excess or deficiency can be dynamically allocated to the storage battery (4) according to the actual amount, which varies depending on wind conditions, of electric power generation by the wind-driven electricity generator (1).