A model of Electric Vehicle charging station compatibles with Vehicle to Grid scenario

A large penetration of Electric Vehicles (EVs) will demand a huge infrastructure for power handling of the distribution network. In this paper, EVs charging station has been modelled which can fulfil different demands of the EV vehicles owners. The owner´s demand can be to limit on the charging rate (C_rate), or limit to the state of charge (SOC) or proper power management of the battery. A suitable fuzzy controller has been designed to control the C_rate of the individual battery based on power available with the battery and the power required by the grid. An algorithm has been designed which can handle different situations like charging and discharging of EVs batteries based on the distribution node voltage. The algorithm updates the power requirement, if certain vehicles arrive or leave the charging station.