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Sensors 2014, 14(5), 8505-8512; doi:10.3390/s140508505
Article

A Combined Experimental and Finite Element Analysis Method for the Estimation of Eddy-Current Loss in NdFeB Magnets

1,2,* , 1
, 1
 and 2
1 EP/Université Lille1, 59655 Villeneuve d'Ascq, France 2 Valeo Equipements Electriques Moteur, 94046 Créteil Cedex, France
* Author to whom correspondence should be addressed.
Received: 17 March 2014 / Revised: 6 May 2014 / Accepted: 9 May 2014 / Published: 14 May 2014
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Abstract

NdFeB permanent magnets (PMs) are widely used in high performance electrical machines, but their relatively high conductivity subjects them to eddy current losses that can lead to magnetization loss. The Finite Element (FE) method is generally used to quantify the eddy current loss of PMs, but it remains quite difficult to validate the accuracy of the results with complex devices. In this paper, an experimental test device is used in order to extract the eddy current losses that are then compared with those of a 3D FE model.
Keywords: eddy-current loss; iron loss; permanent magnet eddy-current loss; iron loss; permanent magnet
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fratila, R.; Benabou, A.; Tounzi, A.; Mipo, J.-C. A Combined Experimental and Finite Element Analysis Method for the Estimation of Eddy-Current Loss in NdFeB Magnets. Sensors 2014, 14, 8505-8512.

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