Demagnetization Detection in PMSMs Using Search Coils Exploiting Machine's Symmetry

Marcos Orviz Zapico, David Diaz Reigosa, Hyeon Jun Lee, Muhammad Saad Rafaq, Sang Bin Lee, Fernando Briz Del Blanco

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

Abstract

Magnet demagnetization in permanent magnet synchronous machines (PMSMs) can produce inadmissible performance degradation. Search coils (SCs) have been proven to be a viable option for its detection. Limitations of existing methods using SCs include the low sensitivity and the need of a large number of SCs. This paper proposes two methods for demagnetization detection of PMSMs using SCs which overcome these limitations. Zero-sequence voltage-based method relies on the zero-sequence voltage of three SCs electrically shifted 120 electrical degrees. On the other hand, differential voltage-based method computes the difference between the voltage induced in SCs with the same electrical angle, i.e., both SCs are electrically shifted 360 1 1 This work was supported in part by the Research, Technological Development and Innovation Programs of the Spanish Ministry of Science and Innovation, under grant PID2019-106057RB-I00

Original languageEnglish
Title of host publication2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4460-4467
Number of pages8
ISBN (Electronic)9781728151359
DOIs
Publication statusPublished - 2021
Externally publishedYes
Event13th IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Virtual, Online, Canada
Duration: 2021 Oct 102021 Oct 14

Publication series

Name2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings

Conference

Conference13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Country/TerritoryCanada
CityVirtual, Online
Period21/10/1021/10/14

Keywords

  • Permanent magnet
  • demagnetization
  • differential voltage
  • search coil
  • zero-sequence voltage

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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