Bidding And Sharing Strategies Of Electric Vehicle Aggregators In Power Market

Developing clean and efficient electric vehicles is an effective way to reduce the dependence of fossil energy and reduce air pollution.With the large-scale use of electric vehicles and the further deepening of the electricity market reform,the charging load of electric vehicles will become another important load on the power grid.In order to represent the large and dispersed electric vehicle owners,concentrate the charging quantity of each electric vehicle in every period of time to meet the market capacity threshold and participate in the market bidding of the power market.At the same time,and to optimize the charging of electric vehicles based on the information interaction network architecture of the charging sharing platform,so the concept of the electric vehicle aggregator is introduced.Electric vehicle aggregators face only electric vehicle users(hereinafter referred to as EV aggregators).Aiming at the electric vehicle aggregators participating in the bidding of electric power market,this paper puts forward the bidding strategy of electric vehicle aggregator under the single seller power market.At the same time,based on the current situation of insufficient number of charging piles and unbalanced utilization,The sharing of charging piles by electric vehicle aggregators is proposed.By sharing the public and private charging piles,the utilization rate of the charging pile in the area is improved and balanced,and the current situation of the current charging pile and the unbalanced utilization of the charging pile is improved.further research sharing mode of charging optimization strategy.Specifically,the paper includes the following aspects of the work:In the field of the aggregators participating in the electricity market,First,the o peration mode of electric vehicle aggregators is analyzed;Then the paper expounds the single seller’s market regulation,selection reasons and characteristics of the power market;After that,Monte Carlo simulation is used to analyze the steps of aggregator t o solve bid price;Finally,the information exchange network architecture of the electri c vehicle charging sharing platform is discussed.In the research of aggregator bidding strategy under the single-supplier power market environment,In view of the shortage of power supply,the paper proposes the bidding strategy of electric vehicle aggregators and other users and other industry aggregators in the single seller’s market.A user demand response model was established based on TOU price at peak,stable and low period of load.Based on Monte Carlo method,the bidding problem of electric vehicle aggregators is solved,and the bidding model is verified by an example.In the aspect of charging pile sharing,the concept of introducing the virtual charging station is put forward in view of the problems of the current charging pile in short supply,the unbalanced utilization and the inconvenience of the users’ charging.The virtual charging station is the general name of the public,private and special charging pile cluster in a small area artificially defined.We further propose a shared mode of charging piles dominated by aggregators,and analyze the orderly shared charging of electric vehicles under aggregator organizations.This paper uses fast charging users as the research object and helps users to choose the right virtual charging station quickly and economically by combining the distance,time and charge cost.The charging pile sharing model is constructed on the goal of the shortest path,the minimum charge time and the cost,the largest profit of the aggregator,the balance of the utilization ratio of the charging pile in the region and the minimum variance of the load fluctuation of the power grid.Finally,the proposed model is simulated in the urban area containing 7 virtual charging stations to verify the effectiveness of the ordered charging strategy under the shared mode.