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谐振式无线电能传输系统损耗模型

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Keywords: 电力电子,无线电能传输,全桥谐振变换器,损耗模型

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Abstract:

针对无线电能传输系统损耗的量化计算问题,本文以电流型谐振式无线电能传输系统为例,对其损耗进行了完整的分析与计算。考虑了电流型全桥谐振变换器开关管的旁路二极管和谐振回路带来的环流影响,使得建立的逆变器的损耗模型更为精确。该模型还充分考虑了高频效应带来的影响,给出了耦合机构的高频内阻计算公式。实验结果验证了模型的正确性和有效性。通过该模型可得到系统损耗的主要组成部分及主要决定因素,对无线电能传输系统的设计与改进具有重要的参考意义。

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