Title :
Analysis of Eddy-Current Loss in a Double-Stator Cup-Rotor PM Machine
Author :
Niu, Shuangxia ; Chau, K.T. ; Jiang, J.Z.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong
Abstract :
In this paper, a new double-stator cup-rotor permanent-magnet brushless DC (PMBDC) machine is proposed and analyzed. Since the machine structure is so unique while its operating principle is so distinct, a numerical field approach, namely the circuit-field-torque grid-model time-stepping finite-element method (CFT-GM-TS-FEM), is newly developed to analyze the steady-state and dynamic characteristics of the machine. Particularly, the analysis of eddy-current loss in both the PMs and iron core of the machine is conducted. Experimental results are given for verification.
Keywords :
brushless DC motors; eddy current losses; finite element analysis; permanent magnet machines; rotors; stators; circuit-field-torque grid-model time-stepping finite-element method; double-stator cup-rotor permanent-magnet brushless DC machine; eddy-current loss; iron core; numerical field approach; stator; Eddy-current loss; finite-element method; permanent-magnet machine;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2008.2001346
