Development of analytical thermal analysis tool for synchronous reluctance motors

Payam Shams Ghahfarokhi*, Ants Kallaste, Andrejs Podgornovs, Anouar Belahcen, Toomas Vaimann

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
53 Downloads (Pure)


This study presents the principles of analytical lumped parameter model for a synchronous reluctance motor (SynRM) for traction application purposes. Particular focus is put on the calculation of the heat transfer from the machine's housing during the active and passive cooling. For this purpose, the area-based composite correlations method is proposed. The approach is attractive due to its simplicity and the fact that it closely models the temperature of the machine's housing. Finally, the proposed thermal model is evaluated experimentally on a totally enclosed fan cooled SynRM, and good correspondence between the analytical and experimental results is obtained.

Original languageEnglish
Pages (from-to)1828-1836
Number of pages9
JournalIET Electric Power Applications
Issue number10
Publication statusPublished - 1 Oct 2020
MoE publication typeA1 Journal article-refereed


  • Cooling
  • Fans
  • Lumped parameter network
  • Reluctance motors
  • Thermal analysis

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