基于补偿拓扑切换的MCR-WPT最大效率追踪方法  

Maximum efficiency tracking method of MCR-WPT based on compensation topology switching

作　　者：常雨芳[1] 李飞 唐杨 薛旭池 阎晟 尹帅帅 CHANG Yufang;LI Fei;TANG Yang;XUE Xuchi;YAN Sheng;YIN Shuaishuai(School of Electrical and Electronic Engineering,Hubei University of Technology,Wuhan 430068,China)

机构地区：[1]湖北工业大学电气与电子工程学院,武汉430068

出　　处：《沈阳工业大学学报》2023年第5期559-564,共6页Journal of Shenyang University of Technology

基　　金：国家自然科学基金项目(61903129).

摘　　要：针对串联串联(S-S)和串联并联(S-P)补偿拓扑结构在大(小)负载场合传输效率低的问题,提出了基于补偿拓扑结构切换的磁耦合谐振式无线电能传输(MCR-WPT)系统最大效率追踪方法.通过建立S-S、S-P等效电路模型提取谐振补偿网络参数,将系统最大传输效率切换点的寻优过程划分成轻载与重载两种工作模式,并使用有源阻抗匹配的方式对系统最大效率点进行自适应追踪.仿真测试结果表明:所提方法在轻载模式下能够维持原有系统最大传输效率,约为84.5%;在重载模式下效率由84.5%提升至91.6%,验证了该方法的有效性.Aiming at the problem of low transmission efficiency of series-series(S-S)and series-parallel(S-P)compensation topologies under large(small)loads,a maximum efficiency tracking method of magnetically coupled resonant radio energy transmission(MCR-WPT)system based on compensation topology switching was proposed.The parameters of resonance compensation network were extracted by establishing S-S and S-P equivalent circuit models.The system was divided into two working modes:light load and heavy load,and the maximum efficiency point of the system was adaptively tracked by active impedance matching.The simulation results show that the as-proposed method can maintain the maximum transmission efficiency of the original system at about 84.5%under light load mode.In the heavy load mode,the efficiency increases from 84.5%to 91.6%,indicating the effectiveness of this method.

关 键 词：磁耦合谐振式无线电能传输系统 最大效率追踪 串联串联 串联并联 负载阻抗 补偿拓扑 谐振补偿 有源阻抗 

分 类 号：TM724[电气工程—电力系统及自动化]