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Performance analysis of brushless DC motors including features of the control loop in the finite element modeling

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5 Author(s)
Ho, S.L. ; Dept. of Electr. Eng., Hong Kong Polytech. Univ., Hong Kong ; Fu, W.N. ; Li, H.L. ; Wong, H.C.
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A time stepping finite element model for analyzing the performance of brushless DC motors is presented. The control loop is coupled into the system equations. The eddy-currents in the permanent magnets (PM) are also taken into account in the proposed circuit-field coupled method. By representing the PM as a “squirrel cage” then the eddy-current loss in the PM can be estimated. The model can directly take care of the nonsinusoidal quantities of the supplied voltages, the phase currents and the magnetic fields

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Magnetics, IEEE Transactions on  (Volume:37 ,  Issue: 5 )