磁耦合谐振式无线电能传输负载特性研究  

Study of the Load Characteristic of Magnetically-coupled Resonant Wireless Power Transmission

作　　者：王国东[1] 乔振朋 王允建[1] 王赛丽[1] 

机构地区：[1]河南理工大学,电气工程与自动化学院,河南焦作454000

出　　处：《电力电子技术》2015年第10期95-97,共3页Power Electronics

基　　金：国家自然科学基金(U1304608);河南理工大学杰出青年基金(J2013-05)~~

摘　　要：建立了阻性负载、感性负载、容性负载的磁耦合谐振式无线电能传输(WPT)系统结构模型。采用电路理论,得出系统结构模型输出功率和效率的表达式。通过Matlab仿真得到不同类型负载的结构模型输出功率和效率随频率、距离、负载的变化曲线。仿真结果表明感性负载相较于阻性负载和容性负载更适用于高频率、远距离的WPT,感性负载输出功率和效率对负载电感值有最优值且容性负载输出功率对负载电阻值有最优值,效率对负载电容值有最优值,为WPT负载特性研究提供了有效参考。A structure model of magnetically-coupled resonant wireless power transmission （WPT） system is established with resistive load, inductive load and capacitive load.Using circuit theory ,the expression of the output power and the efficiency of the system structure model is obtained.Through the Maflab simulation, the curves of output power and the efficiency of structure model with different types of loads vary with frequency, distance and load are obtained.The simulation results show that inductive load is more adaptive to high frequency and long distance of WPT than the resistive load and capacitive load, inductive load output power and efficiency are optimal for the load inductance value and the capacitive load output power is optimal for the load resistance value and the efficiency is optimal for load capacitive value, thus it can provide an effective reference for WPT load characteristic research.

关 键 词：无线电能传输 磁耦合谐振 负载特性 

分 类 号：TM72[电气工程—电力系统及自动化]