Improved Torque Density of a Permanent Magnet Brushless AC Motor with Novel Pulse Width Modulation Magnet for Electrified Application

Zaixin Song, Chunhua Liu, Hang Zhao

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Researchers have recently attached more attention on permanent magnet brushless AC motors for electrified propulsion. Considering the further improvement of torque density, this paper proposes a novel pulse width modulation (PWM) magnet array and quantitatively analyzes the magnetic field with different magnet configurations. It is a good potential for reducing the magnet volume. Based on a slotless motor design which eliminates the influence of additional harmonic sources except for that from magnets, investigations on motor performance with proposed magnet array are made. Also, the improvement of torque density is discussed and verified.

Original languageEnglish
Title of host publicationProceedings - IECON 2020
Subtitle of host publication46th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages4691-4696
Number of pages6
ISBN (Electronic)9781728154145
DOIs
Publication statusPublished - 18 Oct 2020
Externally publishedYes
EventThe 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020 -
Duration: 18 Oct 202021 Nov 2020

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2020-October

Conference

ConferenceThe 46th Annual Conference of the IEEE Industrial Electronics Society, IECON 2020
Period18/10/2021/11/20

Keywords

  • Electrified propulsion
  • in-wheel motor
  • permanent magnet brushless motor
  • pulse width modulation
  • slotless
  • torque density

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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