Title :
Estimation of eddy-current loss in surface mounted PM BLDC motor
Author :
Zhang, Minghui ; Liu, Weiguo ; Zhao, Nannan
Author_Institution :
Sch. of Autom., Northwestern Polytech. Univ., Xi´´an, China
Abstract :
This paper investigates the eddy-current loss in a surface mounted PM BLDC motor. The method is based on the 2-D finite element computation and the loss increase due to non-sinusoidal voltage supply is taken into account. Both eddy-current losses in stator core and in rotor permanent magnets are considered. The detailed equations for prediction of those eddy current losses are presented respectively. Using this procedure, the calculation of the eddy-current loss and the analysis of the effects caused by the harmonics are explained in detail.
Keywords :
brushless DC motors; cores; eddy current losses; finite element analysis; harmonics suppression; permanent magnet motors; rotors; stators; surface mount technology; 2D finite element analysis; eddy current loss; harmonic analysis; permanent magnet motor; rotor; sinusoidal voltage supply; stator core; surface mounted PM BLDC motor; Eddy currents; Finite element methods; Harmonic analysis; Permanent magnet motors; Permanent magnets; Rotors; Stator cores;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2011 International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4577-1044-5
DOI :
10.1109/ICEMS.2011.6073358
