Investigating safety issues related to Electric Vehicle wireless charging technology

Abstract

Electric Vehicles (EV) have gained popularity due to environmental concerns, increasing prices of fossil fuel, and a subsequent desire to move toward renewable energy sources; however, it also raises many concerns associated with connections between EV and charger, EV infrastructure and maintenance, as well as its vulnerabilities to inclement weather and vandalism. Wireless Charging (WC), which operates on magnetic resonance for Wireless Power Transfer (WPT), allows these problems to be alleviated. This paper investigated the safety issues associated with thermal effects, electromagnetic (EM) interference voltages induced by the magnetic field near, inside and at the center of an EV WC system, and magnetic field strength.