General formulation of the magnetostatic field and temperature distribution in electrical machines using spectral element analysis

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)
418 Downloads (Pure)

Abstract

In this paper, a general approach to the description of the magnetic field and temperature distribution in electrical machines using the spectral element analysis is presented. In the spectral element method, higher order Legendre-Gauss-Lobatto polynomials are applied to describe the different fields. The magnetic flux distribution is derived using the magnetic vector potential, and nonlinear magnetic material is modeled based on its BH curve. The thermal model is based on the heat equation. The magnetic and thermal domains are coupled by the ohmic and iron losses, and the latter is computed using the loss separation model of Bertotti. The results are compared with the finite element method, and a good agreement is obtained for both the spatial magnetic flux density and the temperature distributions.
Original languageEnglish
Article number8100809
Number of pages9
JournalIEEE Transactions on Magnetics
Volume54
Issue number2
DOIs
Publication statusPublished - Feb 2018

Keywords

  • Magnetic domains
  • Finite element analysis
  • Magnetostatics
  • Magnetic separation
  • Temperature distribution
  • Computational modeling
  • spectral element method (SEM)
  • Finite element method (FEM)
  • iron losses
  • thermal model

Fingerprint Dive into the research topics of 'General formulation of the magnetostatic field and temperature distribution in electrical machines using spectral element analysis'. Together they form a unique fingerprint.

  • Cite this