A Fast Frequency Active Support Control Strategy for Multiple Wind Farms and Energy Storage

The large-scale wind power grid connection has seriously affected the frequency stability of the power grid, and traditional power system power regulation methods are insufficient to effectively respond. An important way to solve the frequency regulation problem of new power systems is to install energy storage systems. Considering the different wind conditions of multiple wind farms, a control strategy for energy storage to assist large wind farms in quickly supporting grid frequency was studied. Firstly, a control model for doubly fed induction generator units and electrochemical energy storage was established; Then, based on the release characteristics of the kinetic energy of the wind turbine rotor, a collaborative fast frequency support principle considering different wind conditions of wind farms and energy storage was designed; Finally, a simulation model for wind power and energy storage collaborative fast frequency active support was built based on Simulink, and the simulation results verified the effectiveness of the proposed wind power and energy storage collaborative control strategy in supporting grid frequency.