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A semi-empirical approximation of static hysteresis for high flux densities in highly grain-oriented silicon iron
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
KTH, School of Electrical Engineering (EES), Electromagnetic Engineering.
2017 (English)In: 8th Joint European Magnetic Symposia (JEMS2016), Institute of Physics (IOP), 2017, article id UNSP 012039Conference paper (Refereed)
Abstract [en]

In calculations and simulations regarding magnetic materials, it is important to have a have an accurate model of the hysteresis loop. The major loop, in particular, is used in many simulations. However, it is generally not possible to measure the true major loop, and it must therefore be approximated using a minor loop. There are several methods available for approximating magnetization curves, but they are primarily designed for paramagnetic materials, and are poorly suited to the highly grain-oriented steels used in modern transformers. Therefore, we propose two expressions for approximating the magnetization curves of grain-oriented silicon-iron steels. Both methods give close agreement with measurements and can be extrapolated to in order to describe the major loop.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2017. article id UNSP 012039
Series
Journal of Physics Conference Series, ISSN 1742-6588 ; 903
National Category
Other Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-220856DOI: 10.1088/1742-6596/903/1/012039ISI: 000418558200039Scopus ID: 2-s2.0-85034227285OAI: oai:DiVA.org:kth-220856DiVA, id: diva2:1172035
Conference
8th Joint European Magnetic Symposia, JEMS 2016, Glasgow, United Kingdom, 21 August 2016 through 26 August 2016
Note

QC 20180109

Available from: 2018-01-09 Created: 2018-01-09 Last updated: 2018-01-09Bibliographically approved

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Carrander, ClaesEngdahl, Göran

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