High frequency conducted EMI modeling of a series-series resonant WPT system

Wireless power transfer (WPT), a revolution in energy transmission, commercializes in decade years and whose electromagnetic compatibility (EMC) also becomes an important issue at the same time. We investigated the conducted electromagnetic interference generated by series-series resonant WPT system using resonant magnetic field coupling with two-coil configurations in this paper by building the circuit model and simulating it in Saber. Then we focus on CM interference and find out the relationship with power and efficiency which is relate to coupling coefficient. At last, a two-coil series-series resonant WPT testbed is built to provide an intensively investigation for the CM noise.