Optimization design of a segmented Halbach permanent magnet motor using an analytical model

We present an optimization design of a slotless permanent-magnet brushless dc motor (400 W, 6000 rpm), with two-segment Halbach arrays. The optimization is based on a motor analytical model which is obtained by solving the magnetic scalar potential using the Fourier series. We show that the iron-cored Halbach configuration is better than the classical one and that the air-cored Halbach configuration is even better. This means that the rotor iron can be completely omitted. We verify the results by using the finite-element method.


Published in:
IEEE Transactions on Magnetics, 45, 7, 2955-2960
Year:
2009
Keywords:
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 Record created 2009-09-30, last modified 2018-03-17


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