Eddy-current loss analysis in PM of surface-mounted-PM SM for electric vehicles

Author

Yoshida, Kinjiro ; Hita, Yasuhiro ; Kesamaru, Katsumi

Author_Institution

Dept. of Electr. & Electron. Syst., Kyushu Univ., Fukuoka, Japan

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

1941

Lastpage

1944

Abstract

Recently the rare-earth magnet NdFeB has been applied to electric vehicles. The rise of temperature due to eddy current loss in the permanent magnet (PM) leads to serious deterioration of the PM, especially in high speed operation. This paper describes an original analysis of the eddy current loss in the PM of a surface-mounted-PM SM for electric vehicles. The finite element analysis makes clear the effect of eddy current loss in the PM of the PM synchronous motor (SM) in the high speed range of operation including field weakening

Keywords

eddy current losses; electric vehicles; finite element analysis; machine theory; permanent magnet motors; permanent magnets; synchronous motors; traction motors; NdFeB; eddy-current loss analysis; electric vehicles; field weakening operation; finite element analysis; high speed operation; rare-earth magnet; surface-mounted-PM synchronous motors; Eddy currents; Electric vehicles; Equations; Finite element methods; Insulation; Magnetic analysis; Magnetic flux; Magnetization; Rotors; Samarium;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877827

Filename

877827