电动汽车无线充电系统中金属障碍物的检测

2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW) Pub Date : 2017-05-20 DOI:10.1109/WOW.2017.7959371

Xian Zhang, Yao Jin, Qingxin Yang, Zhaoyang Yuan, Hao Meng, Zhaohui Wang

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引用次数: 12

摘要

金属障碍物如果位于电动汽车应用的无线电力传输系统的两个线圈之间，就会由于涡流效应而被加热，容易出现安全问题。如果金属障碍较大，则会出现效率下降、频率失谐等问题。因此对金属障碍物的检测显得尤为重要。本文分析了金属障碍物影响的理论和检测技术。基于金属对谐振频率的影响，通过仿真，采用STM32设计了检测系统。通过实验，结果表明了所提出的检测系统的可行性。

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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Detection of metal obstacles in wireless charging system of electric vehicle

Metal obstacles will be heated due to the eddying effect, if its location is between two coils belonging with the wireless power transfer system applying in the electric vehicle, and safety problems may occur easily. If metal obstacles is large, there will be efficiency decline, frequency detuning and other issues. So it is very important to detect the metal obstacles. In this paper, the theory about the influence of metal obstacles and the detection technology are analyzed. Based on the effect of metal to the resonance frequency, through the simulation, the detection system is designed by STM32. Through the experiment, the results indicates the feasibility of the proposed detection system.

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2017 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer (WoW)

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