电力系统中无线电能传输的技术分析  

Technical Analysis of Wireless Power Transmission in the Electric Power System

作　　者：魏红兵[1] 王进华[2] 刘锐[1] 隆民 

机构地区：[1]重庆市电力公司北碚供电局,重庆400700 [2]西南大学电子信息工程学院,重庆400715

出　　处：《西南大学学报（自然科学版）》2009年第9期163-167,共5页Journal of Southwest University(Natural Science Edition)

基　　金：西南大学博士基金资助项目(104180-20710912)

摘　　要：总结了WPT技术应用于电力系统用时遇到的各种问题:电磁感应和近场谐振式无线电能传输的最大缺点是传输距离近;辐射式无线电能传输距离远,但需要研制具有极高方向性的定向天线.提出高效、高功率微波-电能转换单元和高性能天线,是未来无线电能传输主要的研究方向.同时,无线电能传输与环境的兼容性也是需要重点考虑的问题.At present, in wireless power transmission （WPT） technology, the power of microwave source is still not enough for the capacity of the electric system power. The transfer efficiency between microwave energy and electricity energy is too low to meet the economic requirement of the electricity system. The biggest disadvantage of electromagnetic induction and near-field resonance wireless power transmission is their short transmission distance. The electromagnetic radiation WPT can transmit power farther, but it needs to use a high-directional antenna. Therefore, the high efficient and high power microwave-electricity transfer unit and high capability antenna will be the main research point in the future, and special attention must be paid to WPT compatibility with the environment.

关 键 词：电力系统 无线电能传输 电磁感应 谐振 辐射 近场 天线 

分 类 号：TM72[电气工程—电力系统及自动化]