Title :
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
fDate :
7/1/2000 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
