Research on Control Strategy of Hybrid Energy Storage System Participating in Primary Frequency Regulation of Power Grid

Abstract With the ongoing development of China’s power system, there is a gradual increase in proportion new energy generation. However, randomness and volatility associated with generation can lead to increased frequency fluctuations grid, posing significant challenge system regulation. In this paper, we investigate control strategy hybrid storage (HESS) that participates primary modulation system. We analyze advantages disadvantages various types from both technical economic perspectives perform an applicability analysis select lithium batteries supercapacitor for forming HESS. propose virtual droop regulate output HESS regulation Finally, build simulation model includes grid on MATLAB/Simulink platform conduct analysis. The results show proposed superior effective controlling HESS’s when participating