An Implementation of Solar PV Array Based Multifunctional EV Charger

In this paper, a solar PV (Photo-voltaic) array based EV (Electric Vehicle) charger is proposed, which has a bi-directional flow of active and reactive powers. The proposed charger uses a solar PV array energy to charge the EV battery and to feed the grid with the remaining power. In this charger, the VSC (Voltage Source Converter) does the task of harnessing the maximum power from the solar PV array. At the time of high cost of energy, the charger has the provision to inject the battery energy into the grid to earn revenue. In addition to the active power exchange with the grid, the proposed charger also exchanges the reactive power with the grid, simultaneously. In all operating modes, the THD (Total Harmonic Distortion) of the grid current remains within the IEEE 519 standard. The proposed charger is designed for a single phase 230V, 50Hz supply and is experimentally validated in the laboratory.