Simulation Analysis of Large-scale Application of Energy Storage System in Power Grid

To study the stability control effect of large-scale distributed battery energy storage system for Tianzhong DC blocking. In the PSASP simulation platform, the flexible DC model is used to replace the battery energy storage model, and the stability control effect of conventional measures and battery energy storage is compared, and the battery energy storage location and corresponding output power are determined. The effect of battery energy storage on the primary frequency modulation of the generator set is studied, and the energy storage control reduces the primary frequency output of the generator. The influence of battery energy storage on grid AGC control is studied. The energy storage control can further improve the effect of generator secondary frequency modulation on grid frequency and tie line power.