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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)
S. L. Ho ; Dept. of Electr. Eng., Hong Kong Polytech. Univ., Hong Kong ; W. N. Fu ; H. L. Li ; H. C. Wong
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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

Published in:

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