Stabilization of Wind Power Generation Output Fluctuation by Cooperative Control of Controllable Distributed Generator and Battery System

Abstract

Wind power generation is expected as one of countermeasures for the environmental issues and energy security crisis. However, uncertain and volatile fluctuations in wind power generation output may disturb the system frequency control. This paper proposes a fluctuation stabilization method utilizing a controllable distributed generator (CDG) and a battery system considering the actual technical requirement for a wind power generation system set by the Tohoku Electric Power Co. In the proposed method, the CDG plays a role of main compensator and the battery is used to support the slow dynamic response of CDG. In this paper, the validity of proposed method is ascertained and the necessary capacity of battery system is evaluated through some computational simulations.