Frequency control framework of power system with high wind penetration considering demand response and energy storage

Aiming at the power system with high wind penetration, it is necessary to control the frequency stability under the wind turbine with less regulating capacity itself. Based on the study of the frequency regulation effect of demand response (DR) and energy storage system (ESS), this study presents a frequency modulation (FM) framework with high wind penetration considering both DR and ESS. Frequency characteristics models of wind power and ESS are established, respectively. Also, DR frequency control strategy is similar to under-frequency load shedding (UFLS). Four FM modes are proposed as follows; the FM characteristics without wind power, with wind power, the joint of wind power and ESS, and the wind power considering DR and ESS. The MATLAB simulation platform provides an efficient way to achieve all those four modes. The FM mode of the wind power considering DR and ESS features greater FM capacity and better robustness than other three methods compared with FM ability and contribution to the stability of power system.