Permanent Magnet Synchronous Machine Non-Uniform Demagnetization Detection Using Zero-Sequence Magnetic Field Density

David Reigosa, Daniel Fernandez, Maria Martinez, Yonghyun Park, Sang Bin Lee, Fernando Briz

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

1 Citation (Scopus)

Abstract

Demagnetization in permanent magnet synchronous machines (PMSMs) results in a decrease in the motor average torque and could also increase the torque ripple and consequently vibration and acoustic noise, degrading the overall performance and reliability of the drive. Demagnetization detection can be therefore of tremendous importance. Use of hall-effect sensors has proven to be a viable option for demagnetization detection. Results reported using this method were based on the analysis of the flux density complex vector; the accuracy of this implementation strongly depends on the angle of the hall-effect sensor, being also sensitive to implementation issues such as offsets and gain variations of the sensors, PMs' temperature, manufacturing tolerances and stator current injection. This paper proposes the use of the zero-sequence component of the magnetic flux density for demagnetization detection. The use of this signal will improve the accuracy and reduce the sensitivity to implementation issues compared to the use of the flux complex vector. 1 1 This work was supported in part by the Research, Technological Development and Innovation of the Spanish Ministry Economy and Competitiveness, under grant MINECO-17-ENE2016-80047-R and by the Economic Development Agency of the Principality of Asturias (IDEPA) ThyssenKrupp under grant SV-PA-17-RIS3-2.

Original languageEnglish
Title of host publication2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages769-775
Number of pages7
ISBN (Electronic)9781479973118
DOIs
Publication statusPublished - 2018 Dec 3
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 2018 Sep 232018 Sep 27

Publication series

Name2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018

Other

Other10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
CountryUnited States
CityPortland
Period18/9/2318/9/27

Keywords

  • Hall-effect sensors
  • Non-uniform demagnetization
  • Permanent magnet synchronous machines

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Control and Optimization
  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems and Management

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