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Test Specimen Shape Considerations for the Measurement of Rotational Core Losses

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2 Author(s)
Alatawneh, N. ; Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC, Canada ; Pillay, P.

Accurate modeling of rotational core losses in ac electrical machines is necessary; these losses occur at the roots of teeth and at the back of the slots in stator yokes of ac machines. In order to achieve a satisfactory model, the experimental measured data have to be as accurate as possible. The purpose of this paper is to propose a novel design of a magnetic circuit based on the electromagnetic Halbach array, which generates a uniform flux density inside the specimen. Particular attention is paid to the test shape to allow accurate measurements.

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Energy Conversion, IEEE Transactions on  (Volume:27 ,  Issue: 1 )