A best-fit model of power losses in cold rolled-motor lamination steel operating in a wide range of frequency and magnetization

Mircea Popescu, Dan M. Ionel

Research output: Contribution to journalArticlepeer-review

56 Scopus citations

Abstract

A procedure is described for identifying a mathematical model of core losses in ferromagnetic steel based on a minimal amount of experimental data. The new model has a hysteresis loss multiplicative coefficient variable only with frequency, a hysteresis loss power coefficient variable both with frequency and induction and a combined coefficient for eddy-current and excess losses that is, within a set frequency range, variable only with induction. Validation was successfully performed on a large number of different samples of nongrain oriented fully and semiprocessed steel alloys. Over a wide range of frequencies between 20 Hz and 2.1 kHz and inductions from 0.05 up to 2 T, the errors of the proposed model are substantially lower than those of a conventional model with fixed value coefficients.

Original languageEnglish
Pages (from-to)1753-1756
Number of pages4
JournalIEEE Transactions on Magnetics
Volume43
Issue number4
DOIs
StatePublished - Apr 2007

Keywords

  • Core loss
  • Eddy-current loss
  • Electrical machine
  • Epstein test
  • Ferromagnetic steel
  • Hysteresis loss
  • Iron loss

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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