System and electromagnetic compatibility of resonance coupling wireless power transfer in on-line electric vehicle

The authors introduced the concept of OLEV system and its non-contact power transfer mechanism. The design of electromagnetic field is necessary not only for maximization of power transfer capacity and efficiency but also for minimization of EMF and EMI. With the optimization of power lines and pickup coils, the authors could successfully achieve the power transfer capacity of 100 kW with maximum efficiency of 83% satisfying the international guideline published by ICNIRP.