Title :
Eddy Current Loss in the Frame of a Flux-Switching Permanent Magnet Machine
Author :
Pang, Y. ; Zhu, Z.Q. ; Howe, D. ; Iwasaki, S. ; Deodhar, R. ; Pride, A.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. of Sheffield
Abstract :
In flux-switching permanent magnet machines, a significant leakage flux exists at the outer surface of the stator core. Since the leakage flux varies as the rotor rotates, a significant eddy current loss may be induced in the nonmagnetic frame. The leakage flux and the associated eddy current loss in a representative flux-switching machine are investigated by finite element analysis, on both open-circuit and at rated load, predicted results being validated experimentally. In addition, the effectiveness of introducing slots in the frame to reduce the eddy current loss is investigated
Keywords :
eddy current losses; finite element analysis; magnetic flux; magnetic leakage; permanent magnet machines; rotors; stators; eddy current loss; finite element analysis; flux-switching machine; leakage flux; open-circuit; permanent magnet machines; rotor; stator core; Aluminum; Conductivity; Eddy currents; Europe; Finite element methods; Magnetic analysis; Permanent magnet machines; Rotors; Stator cores; Torque; Eddy current loss; flux-switching; permanent magnet machine;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.879442
