Trailing Edge PM Demagnetization in Surface PM Synchronous Motors: Analysis and Detection

Jigyun Jeong; Hyeonjun Lee; Marcos Orviz Zapico; Sang Bin Lee; David Diaz Reigosa; Fernando Briz del Blanco

doi:10.1109/ECCE50734.2022.9948151

Trailing Edge PM Demagnetization in Surface PM Synchronous Motors: Analysis and Detection

Jigyun Jeong, Hyeonjun Lee, Marcos Orviz Zapico, Sang Bin Lee, David Diaz Reigosa, Fernando Briz del Blanco

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

Irreversible demagnetization of permanent magnets (PM) in PM synchronous motors (PMSM) degrades the performance and efficiency of the machine and drive system. Demagnetizing MMF applied to PMs operating at high temperature is known as one of the leading root causes of irreversible PM demagnetization. This is most likely to cause of demagnetization on the trailing edge of the PMs in all poles, as will be shown through simulation in this work. However, most of the work on detecting demagnetization faults focus on uniform or partial (local) PM demagnetization. In this paper, a comparative evaluation of back-EMF, stator current/voltage, and airgap flux analysis on the detectability of trailing edge PM demagnetization is given. It is shown that it is difficult to detect this type of fault with back-EMF or stator current/voltage based analysis, since trailing edge demagetization does not produce asymmetry between PMs. An experimental study on a 380 V, 8 pole, 1.8 kW surface PMSM with trailing edge PM demagnetization shows that airgap flux-based detection is the most reliable means of detecting this fault.

Original language	English
Title of host publication	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728193878
DOIs	https://doi.org/10.1109/ECCE50734.2022.9948151
Publication status	Published - 2022
Event	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 - Detroit, United States Duration: 2022 Oct 9 → 2022 Oct 13

Publication series

Name	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

Conference

Conference	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Country/Territory	United States
City	Detroit
Period	22/10/9 → 22/10/13

Bibliographical note

Publisher Copyright:
© 2022 IEEE.

Keywords

Airgap Flux
Back-EMF Voltage
Fault Detection
Irreversible Demagnetization
Permanent Magnet Synchronous Motors
Spectral Analysis
Stator Current

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

UN SDGs

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

Access to Document

10.1109/ECCE50734.2022.9948151

Cite this

Jeong, J., Lee, H., Zapico, M. O., Lee, S. B., Reigosa, D. D., & del Blanco, F. B. (2022). Trailing Edge PM Demagnetization in Surface PM Synchronous Motors: Analysis and Detection. In 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE50734.2022.9948151

Trailing Edge PM Demagnetization in Surface PM Synchronous Motors: Analysis and Detection. / Jeong, Jigyun; Lee, Hyeonjun; Zapico, Marcos Orviz et al.
2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. Institute of Electrical and Electronics Engineers Inc., 2022. (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Jeong, J, Lee, H, Zapico, MO, Lee, SB, Reigosa, DD & del Blanco, FB 2022, Trailing Edge PM Demagnetization in Surface PM Synchronous Motors: Analysis and Detection. in 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, Institute of Electrical and Electronics Engineers Inc., 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, Detroit, United States, 22/10/9. https://doi.org/10.1109/ECCE50734.2022.9948151

Jeong J, Lee H, Zapico MO, Lee SB, Reigosa DD, del Blanco FB. Trailing Edge PM Demagnetization in Surface PM Synchronous Motors: Analysis and Detection. In 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. Institute of Electrical and Electronics Engineers Inc. 2022. (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022). doi: 10.1109/ECCE50734.2022.9948151

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abstract = "Irreversible demagnetization of permanent magnets (PM) in PM synchronous motors (PMSM) degrades the performance and efficiency of the machine and drive system. Demagnetizing MMF applied to PMs operating at high temperature is known as one of the leading root causes of irreversible PM demagnetization. This is most likely to cause of demagnetization on the trailing edge of the PMs in all poles, as will be shown through simulation in this work. However, most of the work on detecting demagnetization faults focus on uniform or partial (local) PM demagnetization. In this paper, a comparative evaluation of back-EMF, stator current/voltage, and airgap flux analysis on the detectability of trailing edge PM demagnetization is given. It is shown that it is difficult to detect this type of fault with back-EMF or stator current/voltage based analysis, since trailing edge demagetization does not produce asymmetry between PMs. An experimental study on a 380 V, 8 pole, 1.8 kW surface PMSM with trailing edge PM demagnetization shows that airgap flux-based detection is the most reliable means of detecting this fault.",

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AB - Irreversible demagnetization of permanent magnets (PM) in PM synchronous motors (PMSM) degrades the performance and efficiency of the machine and drive system. Demagnetizing MMF applied to PMs operating at high temperature is known as one of the leading root causes of irreversible PM demagnetization. This is most likely to cause of demagnetization on the trailing edge of the PMs in all poles, as will be shown through simulation in this work. However, most of the work on detecting demagnetization faults focus on uniform or partial (local) PM demagnetization. In this paper, a comparative evaluation of back-EMF, stator current/voltage, and airgap flux analysis on the detectability of trailing edge PM demagnetization is given. It is shown that it is difficult to detect this type of fault with back-EMF or stator current/voltage based analysis, since trailing edge demagetization does not produce asymmetry between PMs. An experimental study on a 380 V, 8 pole, 1.8 kW surface PMSM with trailing edge PM demagnetization shows that airgap flux-based detection is the most reliable means of detecting this fault.

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Trailing Edge PM Demagnetization in Surface PM Synchronous Motors: Analysis and Detection

Abstract

Publication series

Conference

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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