3-D Eddy Current Modelling of Steel Laminations to Analyze Edge Effects

Ravi Sundaria, Paavo Rasilo, Anouar Belahcen, Antero Arkkio

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The correct estimation of iron losses is still a challenging task in the numerical analysis of electrical machines. For estimation of eddy current losses, various formulations based on 1-D and 2-D models are mentioned in literature which neglect effect of current density at the edges of steel laminations. This paper
compares such simplified 1-D/2-D eddy current loss model with a 3-D model to analyze the effect of edges on eddy current loss calculation. Thickness of the lamination along with frequency of field excitation were determined where considerable deviation in eddy current losses among loss models is observed due to edge assumption.
Original languageEnglish
Title of host publicationProceedings of the XXIV Symposium Electromagnetic Phenomena in Nonlinear Circuits, EPNC 2016
EditorsAnouar Belahcem, Andrzej Demenko, Wojciech Pietrowski
PublisherPTETIS Publishers
Number of pages2
ISBN (Electronic)978-83-62712-04-5
Publication statusPublished - 1 Jul 2016
MoE publication typeA4 Article in a conference publication
EventSymposium on Electromagnetic Phenomena in Nonlinear Circuits - Helsinki, Finland
Duration: 28 Jun 20161 Jul 2016
Conference number: 24


ConferenceSymposium on Electromagnetic Phenomena in Nonlinear Circuits
Abbreviated titleEPNC
Internet address


  • Eddy current
  • Edge effects
  • steel laminations


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