Analysis of Output Characteristics of LCC-C Inductively Coupled Power Transfer System

This paper proposed two design methods for LCC-C Inductively Coupled Power Transfer (ICPT) system. With the proposed topology and its designing methods, the detailed mathematical expression of the output power and efficiency was presented, as well as the analysis, and the influence of mutual inductance and load on the output power and efficiency was studied, then a multi-objective optimization method is proposed to solve the optimal value of output power and efficiency in the full-load range, and the design was verified by calculation and simulation. Finally, a 1 kW/85 kHz prototype with the design method of maximum efficiency is implemented, and experimental results demonstrate a 92.8% peak efficiency from dc power source to battery for the full-load operation.