The Planning of Electric Vehicle Charging Stations in the Urban Area

With respect to the planning problems of electric vehicle charging stations in the urban area, the paper presents a planning model which considers the road network structure, vehicle flow information, distribution system structure and capacity constraints, etc. Under the relative constraints of distribution network, the model selects the station sites and plug-in locations with the objective of minimizing the sum of users’ wastage cost on the way to the charging station and the investments of station lines, realizes the auto-partition of station service areas by the weighted Voronoi diagram, and also optimally allocates the station capacities based on the queuing theory. Finally, considering both the benefits of the power company and the electric vehicle users, the planning program optimization is finished by minimizing the costs of the whole society. The case studied shows that the presented methods and models are to some extent practical and reasonable to the optimal planning of electric vehicle charging stations in the urban area.