Energy management strategy of a photovoltaic electric vehicle charging station

The adoption of the photovoltaic electric vehicle charging stations has been on the rise. In this paper, a grid connected electric vehicle charging station powered a by photovoltaic solar system and a pack of batteries as storage system, is evaluated and analyzed. The most important parameter for supervising the system is the direct current bus voltage. The grid or the energy storage system can supply the electric vehicle charging station to maintain the bus voltage at its level. This supervision is tested by simulating the charging system under different irradiance conditions taking into account the cost of the energy transmission and the state of charge of the battery. The results validate the performance of the proposed energy management and the proper operation of electric vehicle charging station.