Research On Coordinated Charging Strategy Of Community Electric Vehicles

With the development of the new energy electric vehicle industry,the number of electric vehicles in the community keeps increasing,and the access of a large number of charging loads has a negative impact on the safe and stable operation of the distribution network,which is also an urgent problem to be solved.Paper introduces the battery,charging mode and the user driving characteristics such as factors that affect user charge behavior,on the basis of the performance of different types of power battery is given and the advantages and disadvantages,the main way of charging,and the travel law of community of users.Load fluctuation in electric vehicle charging lead to community as a starting point,considering the user charging requirements,and under the premise of safe operation of power distribution equipment,puts forward the minimum charge cost,charging,the lowest and minimum peak valley load difference of single objective,the two stage goals and more coordinated charging strategy of distributed control.The simulation results show that the single-objective coordinated charging strategy can reduce the peak-valley difference of load and reduce the charging expenses of users,but a new peak is formed.The two-stage multi-objective coordinated charging strategy can further reduce the load peak-valley difference while keeping the charging cost low.The coordinated charging strategy of distributed control has the best effect to reduce the load peak-valley difference.