Design optimization of asymmetric salient permanent magnet synchronous machines

Jamal Yousuf Alsawalhi, Scott D. Sudhoff

Research output: Contribution to journalArticlepeer-review

44 Scopus citations


This paper sets forth a design paradigm for a permanent magnet synchronous machine (PMSM) architecture that employs rotational asymmetry to obtain an improved constant power speed range performance and increased torque density. A population-based multiobjective optimization design approach is used to design the new machine topology and compare it to a conventional symmetrical surface mounted PMSM. Results obtained demonstrate that improved performance is attainable with the asymmetrical design. Validation of the results is carried out by means of three-dimensional finite element analyses.

Original languageBritish English
Article number7484274
Pages (from-to)1315-1324
Number of pages10
JournalIEEE Transactions on Energy Conversion
Issue number4
StatePublished - Dec 2016


  • Asymmetric permanent magnet synchronous machines
  • flux weakening
  • permanent magnet synchronous machines


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