A wireless power transfer method for electric vehicles by synchronization to secondary resonance

Abstract

In this study, an alternative method and framework for a wireless power transfer system to a moving object such as an electric vehicle or a robot are presented. The well-known systems and their common series-connected/switched road embedded segment structures are discussed and challenged. Then, an alternative method of synchronization to the secondary resonance is presented. The suggested method eliminates switches between road-embedded coil units and makes the energy transition easy among units. This method shortens the length of the EMF radiative part of road embedded segments and the application is suitable for two-dimensional floor embedded structures for robot applications. The experimental setup and the simulation results are shared with the framework of further study.