Detection of Demagnetization in Permanent Magnet Synchronous Machines Using Hall-Effect Sensors

David Reigosa, Daniel Fernandez, Yonghyun Park, Alberto B. Diez, Sang Bin Lee, Fernando Briz

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

Torque production capability of permanent magnet synchronous machines (PMSMs) depends on the magnetization state of the permanent magnets (PMs). Electrical stress, thermal stress, or the combined effect of both can produce demagnetization of the PMs, which eventually can result in several adverse effects including decrease in the motor torque and efficiency and increase of the torque ripple and vibration, eventually degrading the performance and reliability of the motor and drive system. A number of approaches have been proposed for detecting PM demagnetization using model-based flux estimation, signal injection, and spectrum analysis of current/back electromotive force; however, all these methods show limitations in terms of invasiveness, implementation cost, and/or reliability of the diagnosis. In this paper, accurate PM demagnetization detection based on measurements from Hall-effect sensors is proposed. Such sensors are often mounted in commercial PMSMs; the proposed method can, therefore, be implemented at practically no cost.

Original languageEnglish
Pages (from-to)3338-3349
Number of pages12
JournalIEEE Transactions on Industry Applications
Volume54
Issue number4
DOIs
Publication statusPublished - 2018 Jul 1

Bibliographical note

Funding Information:
Dr. Fernández was a recipient of a fellowship from the Personnel Research Training Program funded by the Regional Ministry of Education and Science of the Principality of Asturias in 2013, and three IEEE Industry Applications Society Conference prize paper awards.

Funding Information:
Manuscript received October 26, 2017; revised February 22, 2018; accepted February 23, 2018. Date of publication February 27, 2018; date of current version July 17, 2018. Paper 2017-IDC-1326.R1, presented at the 2017 IEEE Energy Conversion Congress and Exposition, Cincinnati, OH, USA, Oct. 1– 5, and approved for publication in the IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS by the Industrial Drives Committee of the IEEE Industry Applications Society. This work was supported in part by the Spanish Ministry of Education, Culture, and Sports through the José Castillejo Program under Grant PX15/00354; in part by the Regional Ministry of Education, Culture, and Sports of the Principality of Asturias through the Severo Ochoa Program under Grant BP-13067; and in part by the Research, Technological Development, and Innovation Programs of the Spanish Ministry Economy and Competitiveness under Grant MINECO-17-ENE2016-80047-R. (Corresponding author: Sang Bin Lee.) D. Reigosa, D. Fernández, A. B. Diez, and F. Briz are with the Department of Electric Computer and System Engineering, University of Oviedo, Gijón 33204, Spain (e-mail: diazdavid@uniovi.es; fernandezalodaniel@uniovi.es; alberto@isa.uniovi.es; fernando@isa.uniovi.es).

Funding Information:
Spanish Ministry Economy and Competitiveness under Grant MINECO-17-ENE2016-80047-R.

Publisher Copyright:
© 1972-2012 IEEE.

Keywords

  • Demagnetization
  • Hall-effect sensors
  • magnetization state estimation
  • permanent magnet synchronous machines (PMSMs)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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