Charging Optimization Strategy Of Charging Station Based On Game Theory

With the aggravation of urban pollution and the gradual shortage of petroleum resources,electric vehicles have become the product of solving these problems.With the maturity of the electric vehicle technology,it has become the development direction to popularize the electric vehicle in the world to replace the traditional fuel vehicle.Electric vehicles need charging stations to supply energy.The construction of charging devices affects the development and popularization of electric vehicles.The charging optimization of charging stations can improve the interests of both sides of the game.Based on the basic theory of game theory,this paper studies the charging optimization of charging stations in order to minimize the loss of charging stations'power grid,and further explores the relationship between government support and charging price.The main work of this paper is as follows:1.The development status and trend of electric vehicle are introduced.The game theory and its engineering application are studied.The planning and construction of charging station and the optimal dispatch of charging station power are studied.2.According to the master-slave game theory in game theory and combining with the engineering practice,the game mathematical model between charging electric vehicles and charging stations is established.Considering the quantity and season of charging electric vehicles,the game equilibrium solution between charging electric vehicles and charging stations is solved by particle swarm optimization algorithm,respectively.The results show that the increase of the number of charging electric vehicles is related to the increase of the number of charging electric vehicles.The load fluctuation of charging station power grid has remarkable effect on restraining load fluctuation,which can "cut peak and fill valley" for power grid load.3.The game between government support and charging station pricing is studied.By establishing a non-cooperative game model,the game equilibrium solution between government and charging station operators is solved by using search-iteration algorithm,which makes the government and charging station operators win-win and promotes the development of electric vehicles and charging station facilities as well as charging optimization tools for electric vehicles entering the network.It is of great significance.By researching the charging electric vehicle's dispatching strategy to the charging station grid and the game strategy of the government and charging station's electricity price pricing,the charging optimization problem of charging electric vehicle in charging station can be solved,which is of great significance to promote the popularization of electric vehicle and the planning of charging station construction.