Electromechanical Transient Modeling of Fast Electric Vehicle Charging Unit

Fast electric vehicle(EV) charging stations have become one of the fastest-growing penetrated power electronics (PE) interfaced loads to the electric power system. The lack of accurate model of the fast EV charger in transient stability (TS) simulation tools limits the effectiveness of power system dynamic performance evaluation and stability analysis. In this paper, The electromechanical model of a fast EV charging unit is proposed, which is suitable for large-scale power system dynamic analysis in TS simulators. The EV charger model is simplified to guarantee a balance between model accuracy and simplicity. The validity of the proposed model has been demonstrated by a comparative study with the benchmark model created in PSCAD/EMTDC.