Integrated and Optimal Scheduling Model for Microgrids with Multiple VSG Types

The mixed grid connection of multiple types of Virtual Synchronous Generator (VSG) increases the complexity of microgrid operation control and scheduling, and the coordinated control and energy management of different resources is a key problem to be solved in VSG-containing microgrids. In this paper, we develop a coordinated and optimal scheduling model for VSG-containing microgrids in the context of low carbon and environmental protection, taking into account low carbon and environmental protection, reliability, and economy. The model takes into account the virtual inertia of each type of VSG (wind turbine VSG, photovoltaic VSG and energy storage VSG) in terms of reliability, and the operating cost of each generation unit, interruptible load compensation cost, ladder carbon trading cost and pollutant treatment cost in terms of low carbon and environmental protection and economy. The simulation results validate the rationality and effectiveness of the proposed model, which can meet the urgent needs of low carbon, environmental protection and economic, reliable and effective dispatch of microgrid.