Design and Optimization of a Novel Dual-PM Machine for Electric Vehicle Applications

Qifang Lin, Shuangxia Niu, Fengbin Cai, Weinong Fu, Liku Shang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

31 Citations (Scopus)

Abstract

This paper proposes a novel direct-drive dual-PM motor for electric automatic guided vehicles (AGV). The proposed motor has split teeth on stator and dual PMs in stator and rotor sides, which contributes to reduced torque ripple, and enhanced torque. The airgap field of the proposed motor is analyzed theoretically, and the slot/pole selection guide line is concluded. The simulation results of the airgap flux density are shown and Fourier Transformation (FFT) analysis results agree well with the theoretically analyses results. Besides, the effects of design parameters of the proposed motor to the performances of the proposed motor are investigated. And it is found that reduced slot open could produce improved efficiency and decreased torque ripple. The efficiency of the proposed motor is relatively high within the operation range. A corresponding prototype is fabricated and the experiment validates the design.

Original languageEnglish
Article number9244643
Pages (from-to)14391-14400
Number of pages10
JournalIEEE Transactions on Vehicular Technology
Volume69
Issue number12
DOIs
Publication statusPublished - Dec 2020

Keywords

  • direct drive
  • dual-PM
  • high efficiency
  • Vernier PM machine

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

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