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首页> 外文期刊>Microwave Theory and Techniques, IEEE Transactions on >An Investigation of Electromagnetic Radiated Emission and Interference From Multi-Coil Wireless Power Transfer Systems Using Resonant Magnetic Field Coupling
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An Investigation of Electromagnetic Radiated Emission and Interference From Multi-Coil Wireless Power Transfer Systems Using Resonant Magnetic Field Coupling

机译：基于共振磁场耦合的多线圈无线电力传输系统的电磁辐射发射与干扰研究

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摘要

Wireless power transfer (WPT) technology has recently emerged as an innovative and promising technology, and its electromagnetic compatibility (EMC) has become a significant issue. In this study, we investigated the electromagnetic (EM) radiated emission and interference generated by WPT systems using resonant magnetic field coupling, especially in applications with multi-coil configurations. The change in coil resonance associated with multi-coil configurations was analyzed via the impedance profile. We measured the EM radiated emission and analyzed the results with respect to the coil resonance. An analog-to-digital converter chip was designed and fabricated to analyze the effect of electromagnetic interference (EMI). Based on measurement and simulation results, we verified that the EM radiated emission and interference increase at the series or parallel resonance peaks, depending on the source type. In addition, we verified that EMI can be reduced by using ferrite sheet shielding.
机译：无线功率传输（WPT）技术最近已成为一种创新和有前途的技术，其电磁兼容性（EMC）已成为一个重要的问题。在这项研究中，我们研究了WPT系统使用共振磁场耦合产生的电磁（EM）辐射和干扰，尤其是在多线圈配置的应用中。通过阻抗曲线分析了与多线圈配置相关的线圈谐振变化。我们测量了EM辐射发射，并分析了有关线圈共振的结果。设计并制造了模数转换器芯片，以分析电磁干扰（EMI）的影响。根据测量和仿真结果，我们验证了EM辐射发射和干扰在串联或并联共振峰处增加，具体取决于源类型。此外，我们验证了通过使用铁氧体薄板屏蔽可以降低EMI。

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