Design Of T-type CLC-S Compensation Constant Voltage Inductive Coupling Power Transmission System

Aiming at the problem that the ?-type CLC-S compensation constant voltage output characteristic applied to the inductively coupled power transfer(ICPT)system is easily affected by capacitance symmetry,the paper focuses on a T-type CLC-S constant voltage compensation network and The research on parameter configuration method has important theoretical significance and application value for improving the constant voltage characteristic of ICPT system and the transmission efficiency..Based on the analysis of the working principle and energy transmission process of the ICPT system,a detailed circuit analysis of the high-frequency inverter,electromagnetic coupling,and resonance compensation topology involved in the ICPT system is carried out.It is deduced that under ideal conditions,the ?-type CLC-S compensation network has a constant voltage output characteristic that is not affected by load changes.Aiming at the problem that the symmetry of the compensation capacitor will reduce the output stability of this type of compensation network and it is difficult to improve,an attempt is made to propose a T-type CLC-S compensation topology,and the impedance characteristics of the topology are studied.The circuit model of the T-type CLC-S compensation ICPT system was established by using the mutual inductance equivalence theory,the parameter constraints for the system's constant voltage output were derived,and the effects of coupling coefficient,frequency,temperature,and parasitic resistance on the system's constant voltage characteristics were studied.The ICPT system based on T-type CLC-S compensation is analyzed in depth,and the effect of the quality factor on the current gain of the transmitter and the voltage stress of the resonant device is studied,which provides a reference for the selection of compen sation components;The primary input current and secondary output voltage expressions are studied,and the influence of coupling coefficient,frequency and parasitic resistance on the system output power and transmission efficiency is studied.The parameter design of a T-type CLC-S compensation ICPT system is obtained method.A prototype of T-type CLC-S compensation ICPT system was developed and an experimental platform was built.The related waveforms and data were analyzed.The simulation and experimental results verified the correctness of the theoretical analysis and the feasibility of the circuit design.