Sliding Mode combined VSG Control to Microgrid Inverters

Virtual synchronous generator (VSG) is a grid-connected inverter control algorithm developed rapidly in recent years, which can provide inertia and dynamic frequency support for the grid. This article mainly studies the VSG control of grid-connected inverter based on microgrid, the VSG algorithm is adopted in the power outer loop, and designs the voltage and full-order sliding mode control current double loop to improve the stability of the system. With this method, the robustness of the system is enhanced, and the stable operation of the system is achieved while dynamic performance ensured. The feasibility and effectiveness of the above control algorithms are verified by building a simulation model in MATLAB software.