A Simplified Method to Calculate the EMF Characteristics of Multi-disk Axial-gap PM Motor using 2-D & 3-D FEM

다국어 초록 (Multilingual Abstract)

The purpose of this paper is characteristic analysis of multi-disk axial-gap pm motor for turbo compressor. The axial-gap permanent magnet motor has shown a growing interest in high-speed application for its high-efficiency, compact size and low vibration characteristics due to core-less structure. To achieve high-power, the axial-gap PM motor has multi-disk structure of stator and rotor disk. Because of its complicated magnetic flux path, it is not easy to calculate a dynamic characteristics using finite element analysis. In this paper, the simplified 2-D unfolded model to predict EMF characteristic is presented. To verify thesuggested 2-D unfolded model analysis of back-EMF characteristic was calculated and compared 3-D finite element. Finally the proposed method is verified by experimental results and shows good agreement with test results.

참고문헌 (Reference)

1 Sung Hong Won, "Motion Transient Analysis of Flat-Type Vibration Motor for Mobile Phone" 45 (45): 851-854, 2006

2 Y.K. Kim, "High-Speed Axial-gap BLDC Motor Design" 116-118, 1998

3 J.R. Hendershot Jr, "Design of Brushless Permanent Magnet Motors" Clarendo Press, Oxford 1994