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磁耦合谐振式无线电能传输系统负载特性研究

, PP. 28-34

Keywords: 磁耦合,谐振频率,传输效率,感性负载,容性负载

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Abstract:

磁耦合谐振式无线电能传输技术作为一种新的电能传输技术日益得到了人们的广泛关注。本文从系统的互感耦合模型出发,推导出了传输效率的公式,得到了传输效率与负载和收发线圈距离D的关系。进而将负载分为纯电阻负载、感性负载、容性负载三种情况,分别讨论系统的传输效率。针对感性负载和容性负载传输效率降低的情形,提出了电容补偿和电感补偿的方法提高传输效率。最后,利用搭建的磁耦合谐振系统实验平台进行了验证,证明了理论分析的正确性。本文通过对磁耦合谐振系统不同负载的效率研究可为无线充电电动汽车等应用的研究提供参考依据。

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