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A best-fit model of power losses in cold rolled-motor lamination steel operating in a wide range of frequency and magnetization
- Source :
- IEEE Transactions on Magnetics. April, 2007, Vol. 43 Issue 4, p1753, 4 p.
- Publication Year :
- 2007
-
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. Index Terms--Core loss, eddy-current loss, electrical machine, Epstein test, ferromagnetic steel, hysteresis loss, iron loss.
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 43
- Issue :
- 4
- Database :
- Gale General OneFile
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- edsgcl.161556889