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用于磁耦合谐振式无线电能传输系统的新型恒流补偿网络

DOI: 10.13334/j.0258-8013.pcsee.2015.17.023, PP. 4468-4476

Keywords: 无线电能传输,谐振式无线电能传输,补偿网络,电流增益

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Abstract:

对于磁耦合谐振式无线电能传输(magneticallycoupledresonantwirelesspowertransfer,MCR-WPT)系统,其谐振补偿网络是系统的重要组成部分。该文提出并设计了一种用于恒压输入、恒流输出磁耦合系统的新型补偿网络,该补偿网络不仅可实现电流增益的负载无关性,还具有单位功率因数输入的特性。理论推导出系统传输效率及输出功率的数学模型,并分析其与耦合系数、工作频率、负载电阻之间的相应特性曲线。数值仿真和实验结果表明,新型补偿网络应用于MCR-WPT系统时,可实现系统电流增益的负载无关性,并获得较高整机效率。

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