An Inertia Adjustment Control Strategy of Grid-Forming Electric Vehicle for V2G Application

Abstract

Electric vehicles have gradually become the mainstream means of transportation. As a way of energy storage, electric vehicles can participate in the flexible regulation of grid frequency. However, when a great quantity of electric vehicles are connected to the grid, the stability of the power system will be affected. On the one hand, the way grid-forming electric vehicles output the active power when they participate in grid frequency modulation is introduced. On the other hand, the inertia adjustment strategy is applied to the control of grid-forming electric vehicles, which limits the frequency change rate of inverters and optimizes the dynamic characteristics. Finally, an example of multiple grid-forming electric vehicles participating in power grid regulation is established to verify the control strategy.