Analyzing the impact of electric vehicles on distribution networks

Energy shortage and environment pollution are currently of most concern. Electric Vehicles (EVs) can ease the crisis. As a result, they will increase dramatically. But the tremendous growth of EVs will affect the secure and steady operation of power systems. In order to make the power systems safe, it is essential to analyze the impact of EV on distribution networks. In this paper, the reactive power characteristics of charging stations and the impact of charging stations accessing to typical distribution networks are simulated and analyzed. Normal-charge and fast-charge are considered in charging stations. For each charging mode, the characteristic of charging stations accessing to four types of typical distribution networks is simulated, and the operation time of charging station is divided into day and night.