Abstract

Rapid chargers can replenish EV batteries to 80% charge within approximately 30 minutes. This means they are one of the key technologies which will support EV rollout. This paper describes the results of an efficiency study on the performance of a rapid charge unit which has recently been installed at the MetroCentre retail complex in Gateshead, North East England. The study focuses on the efficiency and power draw of the charging process at different starting States of Charge (SoC) and compares the performance of the rapid charger with that of conventional charging. The voltage and current harmonics of the charger have also been measured in consideration of their effects on the local network.