Research on influence and resolution of the relay protections with electric vehicle charging station integrating into distribution network

Electric vehicles have been widely used because of its significant environmental effect, study the influence of the relay protection when electric vehicle charging station integrated into network is important. Three section current protections are configured in distribution network. In this paper, the equivalent model of the charging station is access to distribution network, different fault locations are set up, and the setting value of the corresponding protection are compared with the fault current, finally the impact of the three section current protection is analyzed. A model is built in PSCAD to verify the correctness of the analysis.