An overview on impacts of electric vehicles integration into distribution network

Due to the increasing concerns about the energy crisis and the environmental problems, electric vehicles (EVs) have been regarded as the future trend. Market penetration of EV has been increasing drastically in the recent years. Large-scale EVs charging has become a practical problem in the grid operation and planning of the distribution network. It might have great impacts on the system performance, such as overloading, reducing efficiency, deteriorating power quality and increasing power system losses. This paper briefly discusses the impact of the charging on the distribution system, the factors of causing the influence and the charging control methods that reduce the impacts on the distribution network.