Title :
Performance analysis of brushless DC motors including features of the control loop in the finite element modeling
Author :
Ho, S.L. ; Fu, W.N. ; Li, H.L. ; Wong, H.C. ; Tan, H.
Author_Institution :
Dept. of Electr. Eng., Hong Kong Polytech. Univ., Hong Kong
fDate :
9/1/2001 12:00:00 AM
Abstract :
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
Keywords :
brushless DC motors; eddy current losses; finite element analysis; machine control; permanent magnet motors; brushless DC motors; circuit-field coupled method; control loop; eddy-current loss; magnetic fields; nonsinusoidal quantities; permanent magnets; phase currents; squirrel cage; time stepping finite element model; Brushless DC motors; Control systems; Coupling circuits; Equations; Finite element methods; Magnetic analysis; Magnetic circuits; Performance analysis; Permanent magnets; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
