Title :
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
fDate :
7/1/2004 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.832132
