电工技术学报2016，Vol.31Issue(22)：12-18,7.
磁耦合谐振式无线电能传输系统阻抗分析与匹配电路设计方法
Impedance Analysis and Design of Matching Circuit in Wireless Power Transfer System via Coupled Magnetic Resonances
摘要
Abstract
Impedance mismatch in wireless power transfer system may lead to the problems of low efficiency or burnout power amplifier. Taken the coupling factor, resistance of power and coil into account, this paper analyzed the power amplifier load impedance of four-coil model wireless power transfer system via coupled magnetic resonances, based on mutual inductance coupling theory. Since the impedance is difficult to achieve the ideal effect by changing the system mutual inductance, the impedance matching circuit was proposed and designed. Matching circuit ofπ type was designed, the calculating method and its results were given. In the end, the experiment device of wireless power transfer via coupled magnetic resonances was developed. Experimental results were consistent with the theoretical analysis. Thus it provides a useful reference for further studies on adaptive impedance matching and the improvement of the wireless power transfer power and efficiency.关键词
磁耦合谐振/无线电能传输/阻抗特性/匹配电路Key words
Coupled magnetic resonances/wireless power transfer/impedance characteristic/matching circuit分类
信息技术与安全科学引用本文复制引用
李阳,张雅希,闫卓,杨庆新,薛明,张献..磁耦合谐振式无线电能传输系统阻抗分析与匹配电路设计方法[J].电工技术学报,2016,31(22):12-18,7.基金项目
国家自然科学基金（51577133、51207106、51477117、51307007、51307120），天津市应用基础及前沿技术研究计划（自然科学基金）联合资助一般项目（15JCYBJC46700）和天津市科技支撑计划（15ZCZDGX00980）资助项目。 （）
