Characteristics of LCL resonant Inductive Power Transfer system

Abstract:

The Inductor Capacitor Inductor(LCL) type Inductive Power Transfer(IPT) system is a kind of new resonant topology for IPT system，with a larger power transfer capability and a more complicated frequency characteristic than the conventional LC resonant one. To deal with the high order nonlinear and complex frequency characteristics, the resonant parameter compensation method is presented by impedance analysis based on the mutual coupling model. The frequency and power transfer performance with load variation are analyzed and then the power transfer and efficiency computing method are presented. Simulation results have verified the theoretical results.