Performance analysis of sliding transformer in contactless inductive power transfer system

The sliding transformer is the central part of the contactless inductive power transfer system that can realize the safe supply for mobile devices. The mathematical model of the sliding transformer is set up according to the coupling-circuit method. The compensation topologies and resonant frequency of the transfer system are analyzed contrastively, and the simulation experiment results are given to provide the theory basis for confirming the compensation scheme and operating frequency of the transfer system.