Non-Uniform Global Demagnetization Detection in Interior PMSMs Using Search Coils

  • Marcos Orviz
  • , David Reigosa
  • , Jigyun Jeong
  • , Hyeon Jun Lee
  • , Sang Bin Lee
  • , Fernando Briz

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Magnet demagnetization in permanent magnet synchronous machines (PMSMs) can lead to a reduction of the machine torque output and to an increase of the torque ripple, motor vibration and acoustic noise. Permanent magnet (PM) demagnetization detection is therefore a highly appealing feature. Local and global demagnetization patterns can be distinguished, the latter being the most likely to occur; both patterns can be uniform or non-uniform. Non-uniform global demagnetization of the PMs typically occurs due to a combination of high current and high PM temperature. This paper proposes the use of a search coil (SC) to detect and quantify non-uniform global demagnetization faults in interior PMSMs (IPMSMs). Magnitude and phase of the fundamental harmonic component of the SC flux linkage will be used with this purpose. Three different IPMSMs (integer slot, fractional slot, and concentrated winding IPMSMs) will be used to prove the validity of the proposed method.

    Original languageEnglish
    Title of host publication2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    ISBN (Electronic)9781728193878
    DOIs
    Publication statusPublished - 2022
    Event2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 - Detroit, United States
    Duration: 2022 Oct 92022 Oct 13

    Publication series

    Name2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

    Conference

    Conference2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
    Country/TerritoryUnited States
    CityDetroit
    Period22/10/922/10/13

    Bibliographical note

    Publisher Copyright:
    © 2022 IEEE.

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    Keywords

    • flux linkage
    • global non-uniform demagnetization
    • search coil
    • temperature

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Mechanical Engineering
    • Safety, Risk, Reliability and Quality
    • Energy Engineering and Power Technology
    • Renewable Energy, Sustainability and the Environment
    • Control and Optimization

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