Thin grain oriented electrical steel for PWM voltages fed magnetic cores

This paper reports on performances of high permeability grain oriented electrical steel when used in association with power electronic switching devices. Loss measurement results obtained from the Epstein test, using sinusoidal or various PWM voltages in medium frequency range, show that for both st...

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Bibliographic Details
Published in:AIP advances 2018-04, Vol.8 (4), p.047611-047611-9
Main Authors: Belgrand, Thierry, Lemaître, Régis, Benabou, Abdelkader, Blaszkowski, Jonathan, Wang, Chaoyong
Format: Article
Language:English
Subjects:
Core loss
Electrical steels
Electronic devices
Magnetic cores
Magnetic domains
Magnetic permeability
Steel industry
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Summary:This paper reports on performances of high permeability grain oriented electrical steel when used in association with power electronic switching devices. Loss measurement results obtained from the Epstein test, using sinusoidal or various PWM voltages in medium frequency range, show that for both studied thicknesses (HGO 0.23mm and HGO 0.18mm), comparing performances at a fixed induction level between the various situations may not be the most convenient method. The effect of magnetic domain refinement has been investigated. After having shown the interest of lowering the thickness, an alternative way of looking at losses is proposed that may help to design the magnetic core when it comes to the matter of reducing size in considering frequency and magnetization levels.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4993712