Research on signal and energy forward transmission of wireless power transmission system Based on LCC-S compensation

Abstract To solve the problem of forward transmission of signal and energy in an LCC-S-compensated wireless power transmission system, a scheme for energy and signal sharing the same channel for transmission under constant power conditions was proposed, which controlled the working frequency of the inverter for forward signal transmission based on the method of electric energy frequency modulation. The principle of constant power transmission is to explore whether there are other frequency points to make the voltage gain the same as the load voltage gain of the system at the resonant frequency when the signal is a high level 1. The inverter working frequency is the resonant frequency when the signal is low level 0. The inverter resonates to meet the other frequencies of constant power transmission, and the signal characteristics are converted to the working frequency of the system to realize the transmission of signal and energy. In this paper, the circuit model of the LCC-S ICPT system is built and analyzed, the software MATLAB is used to simulate it, the frequency characteristics are successfully converted to the working frequency of the system under the condition of constant power transmission, and the feasibility of the scheme is verified theoretically.