Switching Control of Transmitting Lane Sections in Dynamic Wireless Charging System for Electric Vehicles

To reduce the magnetic field radiation and power loss in dynamic wireless charging systems for electric vehicles, the power is supplied only to the section of the transmitting lane where the electric vehicle is passing through, rather than to the entire transmitting lane. This paper proposes a new approach for controlling the switching of transmitting lane sections based on the position of electric vehicles. The proposed method only requires measuring current on coils below the transmitting lane to locate electric vehicles, negating the need for additional sensors or cameras. Moreover, the switching control position is selected to minimize the power pulsation of the load. The study shows that the position of the electric vehicle is accurately detected, and the power pulse rate is 5.8%.