Progress and Prospect of Electric Vehicle's V2G Technology

V2G (vehicle to grid) technology is to guide the electric vehicle to discharge when there is power shortage in the grid and charge when there is excess power in the grid by means of incentives such as electricity price, so as to realize the interaction between the electric vehicle and the grid. On the one hand, V2G technology provides a more flexible and economical energy storage mode for the power grid, and provides a new solution for grid-connected new energy and economic dispatch of power grid. On the other hand, V2G technology also enables electric vehicle owners to obtain certain benefits through incentive policies and make full use of idle resources. Firstly, this paper introduces the principle and implementation method of V2G technology, reviews the research progress of V2G technology, then discusses the optimal scheduling of centralized V2G technology, and analyses the optimal scheduling problem, sub-optimization objectives, electric vehicle modeling and model solving. Finally, the application prospect of V2G technology is described.