Outer and Inner Rotor Line-Start Permanent-Magnet Synchronous Motors: An Electromagnetic and Thermal Comparison Study

M. F. Palangar, Wen L. Soong, A. Mahmoudi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents an electromagnetic and thermal comparison study between an outer and inner radialflux line-start permanent-magnet synchronous motor (ORFLSPMSM and IRF-LSPMSM). The LSPMSM proposed design is extracted from existing sizing equations for induction motors (IMs) and permanent magnet motors (PMMs). A 4-kW commercial induction motor is adapted as the benchmark in this study with the aim of improving the machine efficiency by replacing the IM rotor with a hybrid rotor of the same frame size. Finite-element analysis is used to compare electromagnetic performance such as start-up capability and steady-state performance of the motors. In addition, an analytical thermal model is proposed based on a lumped-parameter thermal network to analyze thermal behavior of the two motors. This is validated using 3D FEM-based thermal analysis. Electromagnetic and thermal simulation results show that the 4-kW IRF-LSPMSM has approximately 4% higher efficiency than the ORF-LSPMSM and 5% than baseline IM and its steady state operational temperature rise is approximately half of that the ORF-LSPMSM and benchmark IM.

Original languageEnglish
Title of host publication2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages4226-4233
Number of pages8
ISBN (Electronic)9781728151359
DOIs
Publication statusPublished - 16 Nov 2021
Event13th IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Virtual, Online, Canada
Duration: 10 Oct 202114 Oct 2021

Publication series

Name2021 IEEE Energy Conversion Congress and Exposition, ECCE 2021 - Proceedings
ISSN (Electronic)2329-3748

Conference

Conference13th IEEE Energy Conversion Congress and Exposition, ECCE 2021
Country/TerritoryCanada
CityVirtual, Online
Period10/10/2114/10/21

Keywords

  • Finite-Element Analysis
  • Line-Start Permanent Magnet Synchronous Motor (LSPMSM)
  • Steady-State Thermal Analysis
  • Transient

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