Self-Adaptive Control Strategy of Battery Energy Storage for Power Grid Primary Frequency Regulation

In order to fully play the role of battery energy storage (BES) in primary frequency regulation, this paper proposes a self-adaptive control strategy of BES for power grid primary frequency regulation. Firstly, an equivalent model of BES participation in grid primary frequency regulation is established, followed by analyzing the characteristics of virtual droop control and virtual inertia control in the frequency regulation process, and introducing a self-adaptive factor considering system frequency deviation and system frequency deviation rate based on fuzzy logic control. Finally, a regional frequency regulation model is built in MATLAB/Simulink software to compare different strategies under load step disturbance and load continuous disturbance respectively, and the simulation results verify the effectiveness of the strategy proposed in this paper.