The influence of magnetization pattern on the rotor losses of permanent magnet high-speed machines

Author

Jang, Seok-Myeong ; Cho, Han-Wook ; Lee, Sung-Ho ; Yang, Hyun-Sup ; Jeong, Yeon-Ho

Author_Institution

Dept. of Electr. Eng., Chungnam Nat. Univ., Daejeon, South Korea

Volume

40

Issue

4

fYear

2004

fDate

7/1/2004 12:00:00 AM

Firstpage

2062

Lastpage

2064

Abstract

This paper deals with the comparison of two types of permanent magnet high-speed machines. Specifically, the effect of permanent magnet magnetization pattern on the rotor losses is investigated. On the basis of analytical field analysis and two-dimensional (2-D) finite-element method, this paper predicts the flux harmonics and rotor losses under no-load condition. It is shown that the Halbach magnetization is superior to parallel magnetization in terms of producing rotor losses.

Keywords

finite element analysis; losses; magnetic flux; magnetisation; permanent magnet machines; rotors; 2D finite-element method; Halbach magnetization; analytical field analysis; flux harmonics prediction; high-speed machines; magnetization pattern; no-load condition; parallel magnetization; permanent magnet machines; rotor losses; Eddy currents; Finite element methods; Harmonic analysis; Magnetic analysis; Magnetic flux; Magnetic losses; Magnetization; Permanent magnet machines; Permanent magnets; Rotors; Flux harmonics; Halbach magnetization; high-speed machines; magnetization pattern; rotor losses;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2004.832132

Filename

1325406