With the high-quality development of the energy storage industry

the proportion of new energy storage stations built in the Inner Mongolia power grid has been increasing year by year

and the power grid has raised higher requirements for the active power support capabilities for wind-solar-storage stations. This paper proposes a digital analog hybrid simulation method combining wind solar energy storage joint control AGC system and wind solar energy storage digital model based on the RT-LAB real-time simulation platform. Research is conducted on the multi-dimensional coordinated control strategies and key parameter optimization for wind-solar-storage systems. Simulation tests are conducted on three typical strategies for coordinated control of wind-solar-storage systems on-site

induding energy storage to reduce wind and solar curtailment

energy storage peak shaving and supply strategy

and energy storage prioritization for primary frequency regulation. Through field parameter optimization and testing evaluation

the effectiveness and reliability of these control strategies are verified. The results demonstrate that the proposed strategies enhance the active support capability of wind-solar-storage stations for grid frequency regulation.