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Experimental characterization of the iron losses variability in stators of electrical machines

Abstract : Manufacturing processes may introduce a significant variability on the magnetic properties of claw pole generator stators. The present work deals with the analysis of two groups of stator samples. The first group is composed of 28 slinky stators (SS) and the second group is composed of 5 stators, manufactured using laser cut stacked laminations (SL). Both groups are made from the same lamination grade and with the same geometrical dimensions. Characterization was carried out for several levels of excitation field at 50Hz. A noticeable variability has been observed on the iron losses for SS samples, whereas it appears to be not significant for SL samples. The loss separation technique has then been investigated for the SS samples. Results show that the variability of static losses is more important than the one of dynamic losses.
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Submitted on : Tuesday, September 10, 2013 - 10:07:40 PM
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Rindra Ramarotafika, Abdelkader Benabou, Stéphane Clenet. Experimental characterization of the iron losses variability in stators of electrical machines. IEEE Transactions on Magnetics, Institute of Electrical and Electronics Engineers, 2012, 48 (4), pp.1629-1632. ⟨10.1109/TMAG.2011.2173473⟩. ⟨hal-00860718⟩

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