직동력 고응답 엑츄에이터 구동용 표면부착형 영구자석형 동기 전동기의 슬롯 수에 따른 특성 연구

This paper deals with the characteristics of SPMSM for hydraulic actuator according to the slot number. As a design variable, slot number affects the winding configuration and this leads to the total variation of motor characteristic. Therefore number of slot should be cautiously determined. Three SPMSMs are designed and THD of back emf, cogging torque, and torque ripple are compared. Among three SPMSMs, 36slots with 12 pole is chosen for further development considering motor characteristics and manufacturing.