Novel power receiver for dynamic wireless power transfer system

Abstract

Dynamic magnetic coupling resonate wireless power transfer (WPT) system with single magnetic pole track allows very limited lateral migration of the power receiver relative to the power supply rail. The multi-pole rail improves the issue of lateral migration effectively, but when the receiver moves along the rail, the null points make it difficult to be applied to the equipment which carries none energy storage component. This paper presents a new multiphase receiver cooperating with multipolar power supply rail, which can improve the power transferring stability. Enabling applications such as automatic guided vehicles, robots, electrical vehicles which require continuous power supply, and ensure them to work continuously without any energy storage component. Besides, the improvement is achieved with any kind of shape of bipolar or multipolar tracks.