A Two-stage Optimal Dispatch Strategy of Microgrid Considering Electric Vehicles in V2G Mode

Driven by the "dual carbon" goal, achieving efficient coordination between electric vehicles (EV) and microgrids (MG) is the core of the construction of new power systems. This paper proposes a two-stage optimization model under the V2G mode and introduces a hydrogen energy circulation system. In the first stage, mixed integer programming is used to determine the EV charging and discharging strategy to maximize user satisfaction and minimize load variance; in the second stage, the NSGA-II algorithm and TOPSIS method are combined to reduce the operating cost and carbon emissions of the microgrid. The example shows that compared with disordered charging, the optimization strategy reduces the peak-to-valley difference by 75.97%, the load standard deviation by 77.01%, the MG operating cost by 50.15%, and the carbon emissions by 61.5%, providing a feasible solution for low-carbon collaborative scheduling.