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Diagnosis and Prediction Method for Uniform Demagnetization Fault Severity in Permanent Magnet Synchronous Motors
编号：118 访问权限：仅限参会人 更新：2026-10-10 09:16:16 浏览：15次 口头报告

报告开始：暂无开始时间（Asia/Shanghai）

报告时间：暂无持续时间

所在会场：[暂无会议] [暂无会议段]

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摘要
Permanent magnet synchronous motors frequently operate in harsh environments characterized by high temperatures and strong vibrations, which can easily lead to demagnetization faults. In the case of uniform demagnetization, three-phase currents and other signals remain symmetrical, making the fault difficult to detect and potentially leading to severe consequences. To address this issue, this study proposes a method for diagnosing and predicting uniform demagnetization faults based on the radial air-gap flux density signal, utilizing an improved time-delay approach. Simulation results demonstrate that the proposed diagnostic method can accurately detect uniform demagnetization faults and shows good consistency under the investigated speed and load conditions. Furthermore, the fault severity prediction method achieves good predictive accuracy.
关键词
Uniform demagnetization,permanent magnet synchronous motor,fault diagnosis,fault severity prediction,improved time-delay approach
报告人
Kangkang Zhao
Mr. Beijing Institute of Technology

稿件作者
Kangkang Zhao Beijing Institute of Technology
Guoli Wang Beijing Institute of Technology
YUN KONG Beijing Institute of Technology
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重要日期

  • 会议日期

    11月06日

    2026

    至

    11月08日

    2026

  • 10月15日 2026

    初稿截稿日期

主办单位
IEEE Instrumentation and Measurement Society
承办单位
Sichuan University
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