A Comparison of Outer Rotor Radial and Axial Flux Machines for Application in Electric Vehicles

Vandana Rallabandi, Oluwaseun A. Badewa, Burak Ozpineci, Dan M. Ionel

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

5 Scopus citations

Abstract

Axial flux machines have attracted a lot of interest in the recent years as potential high torque low weight candidates for use as traction motors in electric vehicles (EV). This paper compares axial and radial flux machines for electric vehicle applications. An external rotor radial flux machine with a Halbach array surface permanent magnet rotor and concentrated windings is chosen as a baseline to compare with axial flux designs. Both axial and radial flux motors are sized to meet the EV same requirements. Multi-objective design optimization using differential evolution minimizing loss and volume is carried out for both types of machines. Hundreds of candidate designs for each type of machine are analyzed, pareto fronts are identified and compared. The potential advantages of axial flux machines are evaluated and quantified.

Original languageEnglish
Title of host publication2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023
ISBN (Electronic)9798350398991
DOIs
StatePublished - 2023
Event2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023 - San Francisco, United States
Duration: May 15 2023May 18 2023

Publication series

Name2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023

Conference

Conference2023 IEEE International Electric Machines and Drives Conference, IEMDC 2023
Country/TerritoryUnited States
CitySan Francisco
Period5/15/235/18/23

Bibliographical note

Publisher Copyright:
© 2023 IEEE.

Keywords

  • Permanent magnet machine
  • axial flux motors

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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