직경방향으로 착자된 영구자석형 고속모터의 자계특성 Part I : 무부하시 자계분포

Field Distribution in High Speed Motor with Diametrically Magnetized PM Rotor Part I : Open Circuit Field

This paper deals with field distributions in high speed motor with two different types of diametrically magnetized PM rotor, one is that rotor is consisted of PM and shaft, the other is that rotor has only PM. In case of high speed motor with rotor consisted of PM and shaft, this paper predicts field distributions in high speed motor according to the quality of shaft. The magnetic field solutions are derived analytically in terms of vector potential and 2-D polar coordinate system. The results are shown in good conformity with those obtained from the commonly used finite element method.