Determination of Voltage Security Constrained Maximum Loadability Limit for EV Charging Station with and Without DG

Electric Vehicle (EV) is increasing day-by-day and replacing the conventional internal combustion engine in the transportation system. To charge the EVs multiple charging station is required. But charging of an EV is a challenging task mainly for the less availability of the electric vehicle charging station (EVCS) and its poor infrastructure. Hence, it is essential to find the optimal location of the EVCS and to determine its maximum permissible load (MPL) for those nodes of a radial distribution system (RDS) after satisfying the voltage security constraint. Allocation of the EVCS s affects the energy loss and voltage profile of the overall system. Therefore, solar distributed generation (DG) along with the EVCS is considered for reducing the energy loss. Therefore, in this paper, a modified forward backward sweep (MFBS) algorithm is proposed to find the MPL for a particular node for installing EVCS and simultaneously optimization is performed to determine the optimal location by minimizing the energy loss considering security constraints. As the load and solar PV output varies throughout the day, 2m-point estimation is applied for handling these uncertainties.