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

Volume

42

Issue

10

fYear

2006

Firstpage

3413

Lastpage

3415

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;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.879442

Filename

1704644