Finite-element modeling and measurements of flux and eddy current distribution in toroidal cores wound from electrical steel

ZUREK, S., AL-NAEMI, F. and MOSES, A. J. (2008). Finite-element modeling and measurements of flux and eddy current distribution in toroidal cores wound from electrical steel. IEEE Transactions on Magnetics, 44 (6), 902-905.

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Link to published version:: 10.1109/TMAG.2007.916232

Abstract

Despite the apparent relative simplicity of the wound toroidal geometry, numerical modeling techniques are very difficult to implement due to the inherent large mesh size required to model a laminated core or spiral geometry. Recent advancements in computing capabilities have made the simulation and the study of such devices more feasible. Finite-element modeling of toroidal cores wound from grain-oriented electrical steel was conducted to accurately represent their magnetic circuits in order to calculate the internal magnetic flux distribution, its interaction with core geometry, and to be able to predict the associated magnetic losses. The general flux distribution trends agree with measured results from identical cores. The interlaminar flux and the associated induced planar eddy currents were also calculated. The measurements were performed using a series of search coils enclosing every five turns. In each case, the core was magnetized at 50 and 400 Hz under controlled sinusoidal flux density up to 1.5 T.

Item Type: Article
Additional Information: Times Cited: 1 16th Biennial COMPUMAG Conference on Computation of Electromagnetic Fields JUN 24-28, 2007 Aachen, GERMANY
Research Institute, Centre or Group: Materials and Engineering Research Institute > Centre for Robotics and Automation > Mobile Machine and Vision Laboratory
Identification Number: 10.1109/TMAG.2007.916232
Depositing User: Danny Weston
Date Deposited: 30 Mar 2010 12:17
Last Modified: 30 Mar 2010 12:17
URI: http://shura.shu.ac.uk/id/eprint/1379

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