Study and field test of power line communication for an electric-vehicle charging system

A battery-charged electric-vehicle (EV) technology has recently been developing fast due to energy efficiency and environmental problems. To commercialize these EVs, the EV charging infrastructure should be completely installed. Power line communication (PLC) is a technology designed to use the existing power lines and support communications. As such, its application is under study in diverse fields such as in the outdoor, in-home, in-plane, in-ship, and in-vehicle scenarios. An ISO/IEC 15118 standard is pushing to standardize PLC as a technology that supports EV charging systems. To apply PLC to the EV charging system, this paper investigates the EV and EV charging structures and analyzes requirements for applying PLC. The PLC modem performance was also tested with the charged EV.