Fast receiver-side load control based on electromagnetic distribution for wireless power transfer using parallel line feeder

This paper proposes a fast receiver-side load control method for high frequency wireless power transfer (WPT) using electromagnetically coupled parallel line feeder. In the WPT system, hybrid inductive-capacitive coupling and iterative receiver-side load control have been proposed to stabilize the received power against impact of standing wave. However, the iterative load control is time-consuming and the received power may fluctuate during control process. In this paper, we propose a load control method based on electromagnetic field distribution to suppress power fluctuation. Experimental results show that the proposed method is capable of controlling the received power without large power fluctuation.