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6극 9슬롯과 6극 18슬롯의 조합을 갖는 매입형 및 표면부착형 영구자석 동기전동기의 특성 비교 분석
박유섭(Yu-Seop Park) 한국자기학회 2019 韓國磁氣學會誌 Vol.29 No.2
This paper deals with the comparative investigation on electrical machines which are an interior permanent magnet synchronous motor (IPMSM) and a surface-mounted permanent magnet synchronous motor (SPMSM) by considering pole and slot combination under identical size conditions. Each of 6 pole machine employs 9 slot and 18 slot stator cores with concentrated winding and distributed winding, and those machines are designed to have identical induced voltage and output torque conditions for their reasonable comparison. Based on the electromagnetic field characteristic analysis results by finite element method (FEM), their torque, power loss and efficiency are addressed. Besides, while their efficiency maps are derived by output power and power losses, the best model with highest efficiency was determined, and the volume of their used materials are comparatively addressed for the application of 30 (kW) machine in milling systems.