Method of energy storage system sizing for wind power generation Integration

Combining energy storage system (ESS) with wind farm is an effective way to increase the penetration rate of wind power. And sizing ESS is an important part in nowadays wind farm planning. In this paper, a method for determining the optimal capacity of ESS integrated with wind power generator to meet the requirements of grid integration is presented. With the proposed method, the necessary capacity of ESS which can get the best benefits between the regulation effects and energy storage size was calculated. Further work on expanding the method to determine the necessary capacity of ESS for real-time control is studied too. The time window method is used to enable the proposed method available under all working condition. The calculation results verify the effectiveness of the proposed method.