低速转动多负载MCR-WPT系统研究

Study on Low-speed Rotating Multi-load MCR-WPT System

目前,磁耦合谐振式无线电能传输MCR-WPT(magnetic coupling resonance-wireless power transmission)的研究主要集中在单发射多负载静止和单发射单负载转动2种形式。通过对单发射低速转动多负载状态下的系统进行研究,建立单发射多负载系统并进行理论分析,使用COMSOL对静止状态下多负载接收线圈进行仿真,设置静止状态与旋转状态作对比实验,分析接收端转动对MCR-WPT系统传输效率的影响,探讨低速旋转状态下系统传输效率的变化规律。结果表明,在低速转动三负载时,系统能够保持稳定的功率输出,单个负载的传输效率可以达到23.260%,总传输效率达到69.768%,低速转动对传输效率影响较小。

At present,the study on magnetic coupling resonance-wireless power transmission(MCR-WPT)mainly focuses on two forms of single-transmitting multi-load stationary and single-transmitting single-load rotating.Based on the analysis of a system in a single-transmitting low-speed rotating multi-load state,a single-transmitting multi-load system is established and analyzed theoretically,and the multi-load receiving coil in a stationary state is simulated using COMSOL.The stationary and rotating states are used to form a contrast experiment to analyze the effect of the rotating receiver on the transmission efficiency of the MCR-WPT system,and the changes in the system transmission efficiency in the low-speed rotating state are discussed.Results show that under the low-speed rotating three-load,the system can maintain a stable power output,the transmission efficiency under single load can reach 23.26%,and the total transmission efficiency can reach 69.768%,indicating little influence of low-speed rotation on the transmission efficiency.