Study on Constant Current Characteristics of LCC-S-S Wireless Energy Transfer System

LCC-S-S type compensation structure is a common compensation structure in single trunk coil radio energy transmission system. Due to the influence of high frequency parasitic resistance, its constant current characteristics change with the change of load, which is difficult to meet the needs of practical design. In this paper, the influence of high frequency parasitic resistance parameters on the constant current characteristics of LCC-S-S radio energy transmission system is studied. Through the analysis of grey correlation degree, the influence degree of different parameters on the constant current characteristics of the system is compared, and the simulation model is established to analyze the influence of the parasitic resistance parameter with the highest grey correlation degree on the constant current effect of the system and the joint influence of multiple high-frequency parasitic resistance parameters on the system in turn. The design requirement of system current fluctuation under different high frequency parasitic resistance parameters is given, and the simulation results are consistent with the theoretical analysis.