Investigating Synchronous Reluctance Rotor Performance for Traction Applications against a Permanent Magnet Benchmark

Peter H. Connor, Muhammad Khowja, Antonino La Rocca, Salvatore La Rocca, Tianjie Zou, Gaurang Vakil, Adam Walker, Chris Gerada, Krzysztof Paciura

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

Abstract

This paper investigates the potential benefits for the use of synchronous reluctance machines for traction applications. Permanent magnet machines are often used to generate the highest power densities. However, magnet use has drawbacks including temperature limits requiring localised, intensive, and often complex and expensive cooling strategies. In addition, ethical, environmental, geopolitical, and economic concerns impact short term market fluctuations and long-term demand. In this paper a benchmark PM machine has been taken, and an alternative synchronous reluctance rotor has been designed. The purpose was to identify how much performance could be maintained through improved multi-physics analysis and the design freedom that magnet removal enabled. Performance and cost comparisons are presented. The synchronous reluctance design has 65% of the active material cost of the PM machine yet maintains 94% of the torque density. The result of these changes is a 31% saving in terms of cost per unit torque density.

Original languageEnglish
Title of host publication2022 International Conference on Electrical Machines, ICEM 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages42-48
Number of pages7
ISBN (Electronic)9781665414326
DOIs
Publication statusPublished - 2022
Event2022 International Conference on Electrical Machines, ICEM 2022 - Valencia, Spain
Duration: 5 Sep 20228 Sep 2022

Publication series

Name2022 International Conference on Electrical Machines, ICEM 2022

Conference

Conference2022 International Conference on Electrical Machines, ICEM 2022
Country/TerritorySpain
CityValencia
Period5/09/228/09/22

Keywords

  • Cooling
  • Design Methodology
  • Permanent Magnet Machines
  • Stress
  • Synchronous Reluctance
  • Traction Motor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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