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다국어 초록 (Multilingual Abstract)

This paper studied cogging torque reduction effect for sloping notch applied two notches on stator teeth. We have confirmed accuracy of FEM(Finite Element Method) through comparison previous model using asymmetric notch for experiment and 3D FEM results, and then cogging torque comparison of previous model and sloping notch model. Also the sloping notch model has been modified to step-sloping notch model to consider manufactur. The modification method of sloping notch changed the degree of slope of notch (a)(Notch(a) sloping Deg) and the degree of Slope of notch (b)(Notch(b) Sloping Deg). When Cogging torque is case of minimum, Notch (a) Sloping Deg is –12[°] and Notch(b) Sloping Deg 12[°]. In this case, cogging torque was about 23.9[mNm]. Cogging torque of previous model is about 40.8[mNm], so sloping notch model is less than previous model by 41.42[%]. Also, if sloping notch model is changed to step-sloping notch model, cogging torque of step-sloping notch model is about 24.82[mNm], Therefore the difference between the two cogging torque is about 3.85[%], so step-sloping notch model can be applied when considering manufacture.

목차 (Table of Contents)

Abstract
1. 서론
2. 외전형 BLDC 전동기의 코깅토크[7]
3. Sloping 노치를 이용한 단상 BLDC 전동기의 코깅토크 저감
4. 결론

Abstract
1. 서론
2. 외전형 BLDC 전동기의 코깅토크[7]
3. Sloping 노치를 이용한 단상 BLDC 전동기의 코깅토크 저감
4. 결론
References

참고문헌 (Reference)

1 박용운, "단상 BLDC 전동기의 코깅토크 저감을 위한고정자 형상 최적설계" 대한전기학회 62 (62): 1528-1534, 2013

2 S. Bentouati, "Influence of Design Parameters on the Starting Torque of a Single-Phase PM Brushless DC Motor" 36 (36): 3533-3536, 2000

3 M. A. Rahman, "Dynamic Performance Analysis of Permanent Magnet Synchronous Motors" PER-4 (PER-4): 40-40,

4 Christoph Schlensok, "Combined numerical and analytical method for geometry optimization of a PM motor" 42 (42): 1211-1214, 2006

5 Young-Un Park, "Cogging Torque Reduction of Single-Phase Brushless DC Motor With a Tapered Air-Gap Using Optimizing Notch Size and Position" 51 (51): 4455-4463, 2015

6 정대원, "Cogging Torque Reduction in Permanent-Magnet Brushless Generators for Small Wind Turbines" 한국자기학회 20 (20): 176-185, 2015

7 Gyu-Hong Kang, "A Novel Cogging Torque Reduction Method for Interior-Type Permanent-Magnet Motor" 45 (45): 161-167, 2009

8 Mohammed Fazil, "A Novel Air-Gap Profile of Single-Phase Permanent-Magnet Brushless DC Motor for Starting Torque Improvement and Cogging Torque Reduction" 46 (46): 3928-3932, 2010