Black-Start Using Battery Storage and Wind Turbines

This paper discusses a black-start restoration control strategy using a battery energy storage station together with wind farms. The wind farm operates with the maximum power tracking control method, and the energy storage station adopts the V/ f control method to jointly act as the black-start resources. Soft energization is used to eliminate transformer inrush currents. A restoration sequence is designed to mitigate the transient impact by picking up critical load before connecting the wind turbines. The amount of the critical load is estimated considering the capacity and the state of charge of the energy storage station based on wind power prediction. Simulations are carried out in PSCAD/EMTDC to verify the effectiveness of the described strategy.