Analysis and optimization on power transfer capability of contactless power transfer systems with multi-load

In order to optimize the power transfer capability of a contactless power transfer (CPT) system with multi-load, this paper has analyzed the existence condition of the maximum power transfer capability of a CPT system with a certain topology and parameters based on impedance analysis. In addition, a procedure of optimized design is given according to the need of the power and efficiency requirement of a CPT system factually. This method has realized the optimized control of power transfer capability and efficiency by optimizing the input voltage and mutual inductance. Finally, this criterion is justified via an experiment.