PMLSM의 디텐트력 및 Lateral Force 최소화를 위한 V-skew 모델에 관한 연구

다국어 초록 (Multilingual Abstract)

Permanent Magnet Linear Synchronous Motor (PMLSM) has high efficiency, high energy density, and high control-ability. But, the detent force always is produced by the structure of slot-teeth. There are the disadvantages such as noise and vibration of the apparatuses are induced and the control ability is curtailed because detent force acts as thrust ripple. Therefore, the detent force reduction is an essential requirement in PMLSM. Generally, the method, skewing permanent magnet or slot-teeth, is used to reduce the detent force. But the thrust is decreased at the same time. If permanent magnet is skewed, the lateral force which operates as the perpendicular direction of skew direction is generated in linear guide of PMLSM. So, V-skew model is proposed for the reduction of lateral force. The lateral force acts as braking force in linear motion guide, and it has bad influence to the characteristics of PMLSM. However, these problems will not be solved by 2-dimensional Finite Element Analysis(FEA). So, in this paper 3-dimensional FEA is applied to analyze the PMLSM where permanent magnet is skewed and has overhang. The detent force and thrust characteristics considering skew and overhang effects of permanent magnet are analyzed by 3-dimensional FEA and the results are compared with experimental values to verify the propriety of analysis.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 해석 모델
• 3. PMLSM에서의 발생하는 힘
• 4. Skew와 Overhang이 PMLSM에 미치는 영향
• 5. Lateral force 저감을 위한 V-skew 모델의 제안
• 6. 결론
• 감사의 글
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 강규홍, "직접 구동 슬롯리스 영구자석 동기전동기의 설계" 49B (49B): 2002

2 임기채, "수치해석법을 이용한 영구자석 선형동기전동기의 특성해석 및 제어기 구현" 창원대학교 2000

3 Ki-Chae Lim, "The Novel Technique Considering Slot Effect by Equivalent Magnetizing Current" 35 (35): 3691-3693, 1999

4 Jacek F. Gieras, "Linear Synchronous Motors - Transportation and Automation Systems" CRC Press 2000

5 I. Boldea, "Linear Motion Electromagnetic Systems" John Wiley and Sons 1985