A Comparative Study of Yokeless and Segmented Armature Versus Single Sided Axial Flux PM Machine Topologies for Electric Traction

Narges Taran, David Klink, Greg Heins, Vandana Rallabandi, Dean Patterson, Dan M. Ionel

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This article systematically compares two axial flux permanent magnet machines designed for a university student racing car application: a double-rotor single-stator yokeless and segmented armature (YASA) structure, and a single-stator single-rotor configuration. Both machines are optimized for minimum loss and active weight using three-dimensional finite element analysis and the highest performing candidate designs are compared in more detail. The studies indicate that the benefits offered by the YASA configuration over the single-stator single-rotor machine are achieved only for specific designs that are heavier. For the design space with lower mass, albeit with increased losses, the Pareto front designs overlap. In this envelope, the YASA configuration demonstrates higher efficiencies at higher speeds, whilst the single-stator single-rotor is more efficient in high torque duty cycles. This shows the performance of the two machines is very similar and the choice is application specific. To validate the finite element analysis used in the optimization, a prototype was built and tested. Results showed good alignment between simulation and experimental data.

Original languageEnglish
Pages (from-to)325-335
Number of pages11
JournalIEEE Transactions on Industry Applications
Volume58
Issue number1
DOIs
StatePublished - 2022

Bibliographical note

Publisher Copyright:
© 1972-2012 IEEE.

Keywords

  • Axial flux permanent magnet
  • multiobjective optimization
  • single sided
  • three-dimensional (3-D) finite element analysis (FEA)
  • topology advantages
  • yokeless and segmented armature
  • yokeless and segmented armature (YASA)

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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