Collaborative simulation using multiple real-time simulators is an effective way to increase simulation scale. Firstly, a voltage and frequency active support testing system for grid type energy storage inverters based on the joint real-time simulation platform of CloudPSS-RT and RT Lab was constructed. Then build a regional power grid model and a Semi physical simulation model of energy storage inverter. Load regulation and grid connection frequency of regional power grids. Simulate actual voltage drop in the power grid by inputting fault grounding resistance. Finally, conduct simulation experiments and verify the accuracy and effectiveness of voltage and frequency active support for grid type energy storage converters.