Title :
Rotor eddy-current loss in permanent magnet brushless machines
Author :
Toda, Hiroaki ; Xia, Zhenping ; Wang, Jiabin ; Atallah, Kais ; Howe, David
Author_Institution :
Dept. of Electron. & Electr. Eng., JFE Steel Corp., Okayama, Japan
fDate :
7/1/2004 12:00:00 AM
Abstract :
This paper presents an analysis of the rotor eddy-current loss in modular and conventional topologies of permanent magnet brushless machine. The loss is evaluated both analytically and by time-stepped finite-element analysis, and it is shown that it can be significant in both machine topologies. It is also shown that the loss can be reduced significantly by segmenting the magnets.
Keywords :
brushless machines; eddy current losses; finite element analysis; permanent magnet machines; rotors; eddy-current loss; loss reducing; machine topology; magnet segmenting; modular machines; modular topology; permanent magnet brushless machines; permanent magnet machines; rotor loss; time-stepped finite-element analysis; AC machines; Brushless machines; Finite element methods; Magnetic analysis; Magnetic losses; Permanent magnet machines; Permanent magnets; Stator cores; Stator windings; Topology; Eddy-current; modular machines; permanent magnet machines; rotor loss;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.832481
