Study On Modeling And Optimization Of The Electric Vehicle V2G Discharging Pricing And Bidding

With the progress and development of science and technology,various performance indicators of electric vehicles such as cruising range and charging voltage have been greatly improved.Most countries in the world such as China and Germany have increased their support for various research work on electric vehicles.To promote the perfect development of the electric vehicle industry in various ways.It is foreseeable that in the near future,new energy electric vehicles will replace traditional fuel vehicles and become the first choice for national travel.Therefore,it is of theoretical and practical significance to study how to use economic means to conduct reasonable charge and discharge scheduling for electric vehicle groups.This paper mainly focus on the following aspects:(1)This paper systematically searches and summarizes the development process of the electric vehicle V2G from the two aspects of the location and capacity determination of the electric vehicle charging station and the scheduling of the electric vehicle,and introduces and analyzes the application model and scenario of the game theory in the electric vehicle V2G in detail.(2)The paper analyzes the benefits and costs of power grid and electric vehicle before and after participating in V2G dispatching,and focus on the battery wear costs generated by electric vehicles when participating in V2G scheduling.Finally,based on the battery wear costs,,the paper constructs the willingness model of electric vehicle users to participate in V2G scheduling.(3)The particle swarm optimization algorithm is used to solve the peak dynamic discharge price of V2G dispatching.The simulation results show that the V2G dispatching of the power grid during the daily peak load period not only helps to reduce the daily load peak-valley difference,ensure its own safe and stable operation,but also can obtain considerable economic benefits,After participating in V2G scheduling,the electric vehicle group can also obtain considerable economic benefits.Finally,the paper discusses the impact of the national power subsidy policy and the decline in power battery wear costs on the grid’s V2G optimal dynamic discharge electricity price.(4)Based on the relevant knowledge of game theory,first,the pure strategy Nash equilibrium is used to analyze the strategy that electric vehicle users and power grid will adopt in V2G.Then,the Nash bargaining model is used to simulate the bidding process of power grid and electric vehicle group in V2G,and the discharge price when the two sides reach V2G cooperation is analyzed.The simulation results show that the model has certain theoretical and practical significance.