Title :
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
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;
Conference_Titel :
Electromagnetic Field Computation (CEFC), 2010 14th Biennial IEEE Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-7059-4
DOI :
10.1109/CEFC.2010.5481724
