Design and Implementation of Wireless Omnidirectional Power Transfer System using Inductive Coupling

Abstract

Wireless Power Transfer (WPT) through inductive coupling could be one of the next prominent technologies that is widely used in the near future. However most WPT systems used today involve flat spiral coils that are suitable only for power transfer in one direction which is impractical for most applications. This study develops a two-loop and three-loop omnidirectional WPT system. Experimental results of coil separation distance, lateral misalignment and angular misalignment have been obtained using the single loop, two-loop and three-loop WPT systems. The results have been displayed in graphs using MATLAB software. By comparing different results obtained it was found that omnidirectional WPT systems exhibit better efficiency in terms of the coil separation distance, lateral misalignment and angular misalignment