Game Analysis Of Electric Vehicle Trading In Power Distribution Market Based On Game Theory

With energy shortage and environmental pollution becoming more and more serious,people are looking for cleaner and more efficient energy.Under this background,electric vehicles(EVs)have developed rapidly with their low-carbon and energy-saving characteristics.In addition,the reform of electricity market is being carried out all over the world.China has put forward the policy of opening up the power distribution market and the power sales market.Because EVs have the characteristics of dynamic controllable load and energy storage devices,they can join the market as competitors to regulate the power distribution market,so it is necessary to study the competition mechanism brought by EVs.Based on the idea of game theory,considering the different performance of EVs from three aspects of battery capacity,loss coefficient and utility coefficient,this paper establishes a two-party game model between EVs and grid company,chooses particle swarm optimization to obtain Nash equilibrium solution of the game,analyzes the impact of EVs entering the power distribution market on the load and price of the power grid,and discusses the benefits of EVs with different performance.After discussing the positive impact of EVs on grid load and electricity price,and both sides can benefit from the competition,this paper considers the geographical distribution,user utility and user's consumption intention,joins the user side,and integrates individual EV into EV group,builds a multi-player game model of EV groups,grid company and users,and uses particle swarm optimization to obtain Nash equilibrium solution of the game.The influence of the participation of different numbers of EV groups on electricity quantity and price in the market is discussed.In this paper,the rationality and feasibility of the model are verified by examples,which provides theoretical reference for the research of EVs participating in power distribution market.