Research and design of rotary multi-channel wireless power transmission system

A wireless power transfer (WPT) system combining multiple topologies is proposed for the power supply problem of rotating devices with multiple channels. Firstly, the finite element software Comsol is used to analyze and design the electromagnetic shielding method of the coupling mechanism to solve the energy interference problem between each energy channel. For the electromagnetic characteristics of each channel of the coupling mechanism, the resonant compensation topology of each channel is designed, and the mathematical model of the compensation network is established, and it is verified by derivation and circuit simulation in Simulink that each channel works in the resonant state to realize zero-voltage switching (ZVS). Finally, the principle prototype is built to realize the output power of 10KW, 500W, 100W, and 50W respectively, and the measured results show that the output power meets and does not interfere with each other, thus proving the rationality and effectiveness of the proposed method.