关键词: 无线电能传输, 磁耦合谐振, 多频多负载, 粒子群算法

Abstract: A dual-frequency multi-load magnetically coupled resonant wireless power transmission ( MCR-WPT ) system was proposed to realize the power regulation among the loads of the multi-load MCR-WPT system. The input side adopted multiple frequency multiple amplitude signal superposition modulation method, and the multiple frequency signals shared a common inverter and DC voltage source, and the transmitter side adopted LCL compensation network to provide transmission channels with different resonant frequencies, and the resonant frequencies of each receiver corresponded to the frequencies of the input signals. A mathematical model of the dual-load MCR-WPT system with different resonant frequencies was established, the input impedance characteristics of the system were analyzed, and the particle swarm optimization was used to realize the optimal design method of the system parameters. The system was experimentally verified on an experimental prototype built.

Key words: wireless power transmission( WPT), magnetically coupled resonance( MCR), multi-frequency and multiload, particle swarm optimization( PSO)