Optimal Planning of Electric Vehicle Charging Station in Radial Distribution Network considering System Average Interruption Frequency Index

Electric Vehicles (EVs) manufacturing has risen noticeably in response to environmental threats and limited availability of fossil fuels. To attain the power required for EV charging, the active power loss of the distribution system increases causing considerable changes in the voltage profile and reliability indices. The installation of EV Charging Stations (EVCS) at inappropriate locations considerably lowers the radial distribution system’s power quality and reliability. This paper outlines the appropriate placing of EVCS in the IEEE 33 bus Radial Distribution Network (RDN) while ensuring power loss is reduced and a healthy and reliable power system network is maintained. The RDN has been split into three areas and it has been verified that each area has one charging station installed for providing widespread charging facilities. The active power loss and System Average Interruption Frequency Index (SAIFI) are minimized along with maintaining a suitable power system profile. The problem has been formulated as an optimization problem and resolved by utilizing the Particle Swarm Optimization (PSO) and Symbiotic Organisms Search (SOS) optimization tools.