Wireless Charging System for Electric Vehicles with Auxiliary Coils

Haoran Hu, Zezhou Luo, Jie Pang
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引用次数: 1

Abstract

Magnetic resonance coupling radio energy transmission technology has become a research hotspot of radio energy transmission technology because of its advantages of high transmission efficiency, long transmission distance and small transmission radiation distance and small transmission radiation. However, when two coils transmit energy through magnetic coupling, they have the disadvantages of low transmission efficiency in low coupling region and “frequency splitting” phenomenon in medium and high coupling region. In this paper, the solution of loading the auxiliary coil is presented, and the radio energy transmission system before and after loading the auxiliary coil is modeled and analyzed. Then, the paper deduces the theoretical relation and simulates the transmission efficiency and output power before and after loading the auxiliary coil, and carries out the experimental verification. Theoretical analysis, simulation and experimental structure all verify the effectiveness of the loading auxiliary coil.
带辅助线圈的电动汽车无线充电系统
磁共振耦合无线电能量传输技术以其传输效率高、传输距离远、传输辐射距离小、传输辐射小等优点,成为无线电能量传输技术的研究热点。然而,当两个线圈通过磁耦合传输能量时,存在低耦合区传输效率低,中高耦合区存在“分频”现象。本文提出了加载辅助线圈的解决方案,并对加载辅助线圈前后的无线能量传输系统进行了建模和分析。然后推导了理论关系,并对加载辅助线圈前后的传动效率和输出功率进行了仿真,并进行了实验验证。理论分析、仿真和实验结构均验证了加载辅助线圈的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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