Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages

Kodai Okazaki, Yoshihiro Miyama, Kan Akatsu

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

Abstract

Permanent magnet synchronous motors (PMSMs) are widely used for many purposes because of their efficiency and energy density. Because of their increased use, they require improved efficiency, lower noise, and fewer vibrations. Static eccentricity and roundness degradation generate a magnetic unbalance in the magnetic gap and cause a low-order harmonic electromagnetic force and cogging torque that creates noise and vibration. Since multi-three-phase PMSMs can individually control the phase current of each group, it is possible to reduce magnetic unbalance in the magnetic gap; however, to control the phase current of each group, the magnetic unbalance must be detected. In this study, we use the harmonics of no-load stator voltages to theoretically and analytically detect static eccentricity on multi-three-phase PMSMs.

Original languageEnglish
Title of host publication2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages671-677
Number of pages7
ISBN (Electronic)9781538693490
DOIs
Publication statusPublished - 2019 May 1
Externally publishedYes
Event11th IEEE International Electric Machines and Drives Conference, IEMDC 2019 - San Diego, United States
Duration: 2019 May 122019 May 15

Publication series

Name2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019

Conference

Conference11th IEEE International Electric Machines and Drives Conference, IEMDC 2019
CountryUnited States
CitySan Diego
Period19/5/1219/5/15

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Keywords

  • Harmonics of no-load stator voltages
  • Multi-three-phase
  • Permanent magnet synchronous motor
  • Static eccentricity

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Okazaki, K., Miyama, Y., & Akatsu, K. (2019). Detection of static eccentricity on multi-three-phase permanent magnet synchronous motors by the harmonics of no-load stator voltages. In 2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019 (pp. 671-677). [8785146] (2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEMDC.2019.8785146