Eddy current analysis in permanent magnet of PM motors considering temperature nonlinearity of conductivity

Author

Cha, Seung Chul ; Kim, Young Sun ; Choi, Hong Soon ; Park, Il Han

Author_Institution

Sch. of Inf. & Commun. Eng., Sungkyunkwan Univ., Suwon, South Korea

fYear

2010

fDate

9-12 May 2010

Firstpage

1

Lastpage

1

Abstract

Permanent magnet (PM) motors are being applied to larger system. In high speed and large scale PM motors, the eddy current in PM due to space harmonics field raises its temperature and then results in reduction of maximum torque and energy efficiency. Among new design techniques there are magnet shape optimization, segmentation and relocation of bulk magnet. This paper presents an analysis method for a coupled system of the eddy current and the temperature in the PM motor.

Keywords

eddy currents; energy conservation; permanent magnet motors; conductivity temperature nonlinearity; eddy current analysis; energy efficiency; large scale PM motor temperature; magnet relocation; magnet shape optimization; magnet shape segmentation; permanent magnet motors; space harmonics field; Conductivity; Design optimization; Eddy currents; Energy efficiency; Large-scale systems; Magnetic analysis; Permanent magnet motors; Shape; Temperature; Torque;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on

Conference_Location

Chicago, IL

Print_ISBN

978-1-4244-7059-4

Type

conf

DOI

10.1109/CEFC.2010.5481724

Filename

5481724