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

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 re...

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Bibliographic Details
Published inSensors (Basel, Switzerland) Vol. 14; no. 5; pp. 8505 - 8512
Main Authors Fratila, Radu, Benabou, Abdelkader, Tounzi, Abdelmounaïm, Mipo, Jean-Claude
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 14.05.2014
Molecular Diversity Preservation International (MDPI)
Subjects
Devices
Eddy current testing
eddy-current loss
Finite element analysis
Finite element method
iron loss
Magnetization
Mathematical analysis
permanent magnet
Permanent magnets
Resistivity
Review
Three dimensional models
Online AccessGet full text
ISSN1424-8220
1424-8220
DOI10.3390/s140508505

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Summary: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.
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Author Contributions: Radu FRATILA's work consisted in realizing the measurements, the F.E. calculations, the evaluation of results and in writing the paper. Abdelkader BENABOU proposed the approach used in this article, he supervised all the above work more particular the analysis and the interpretation of the acquired data and he also contributed to the writing and editing the manuscript. Abdelmounaïm TOUNZI guided the research and contributed to the result analysis and was charged with the critical revisions of the manuscript. Jean-Claude MIPO ensured the realization of the experimental device.
ISSN:1424-8220
1424-8220
DOI:10.3390/s140508505