Abstract

The popularity of electric vehicle (EV) will greatly impact on the distribution network. An intelligent charging mode based on the current peak-valley time-of-use (TOU) power price is presented. Charging models of private EV under three charging modes in residential districts are established. Taking a 10kV feeder distribution network supplying power for residential districts in a city of South China as the case, then the impacts of EVs charging on the distribution network under three charging modes by 2020 and 2030 are analyzed. Controlled charging modes are beneficial to load curve smoothing, network loss reduction, reduce voltage deviation and load rate of the main equipments as well as meet EVs charging. And the intelligent charging presented is more effective. It provides a reference for renovation and planning of distribution network. Keywords-electric vehicle (EV); distribution network; timeof-use (TOU) power price; intelligent charging

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