Rotor sleeve and Stator Shape Design of High Speed Permanent Magnet Synchronous Motor for Loss Reduction

손실 저감을 위한 초고속 영구자석 동기전동기의 회전자 슬리브와 고정자 형상 설계

The loss is most important problems for the practical applications of permanent magnet synchronous motor(PMSM). In this paper, rotor sleeve and stator shape design of high speed permanent magnet motor for loss reduction. First, this paper found optimum sleeve thickness for calculation eddy current loss on the basis of analytical method, because eddy current is influenced by conductivity of material and area. Then, stator shape design is changed as maintain same slot area for reducing stator core loss. Finally, this paper compared analytical result with optimum sleeve thickness obtained from finite element(FE) method, and stator core loss is calculated from FE method.