Journal of the Korean Society of Industry Convergence (한국산업융합학회 논문집)

The Korean Society of Industry Convergence (한국산업융합학회)
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A Study of Cogging Torque Reduction depending on Notch Position of Single Phase BLDC Motor Stator

단상 BLDC 전동기 고정자 노치 위치에 따른 코깅토크 저감에 관한 연구

  • Kam, Seung-Han (Kyungnam University Dept. of Advanced Engineering) ;
  • Jung, Tae-Uk (Dept. of Electrical Engineering of Kyungnam University)
  • 감승한 (경남대학교 첨단공학과) ;
  • 정태욱 (경남대학교 전기공학과)
  • Received : 2014.07.01
  • Accepted : 2014.07.18
  • Published : 2014.08.31
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Abstract

This paper presents a optimization design of 10[W] single phase BLDC motor applied Notch shape. Cogging Torque causes noise, vibration and torque ripple so notched stator is proposed in this paper. Firstly, a single phase BLDC motor needs applying aymmetric air-gap shape because this type motor cannot help having dead-point which is zero torque position. However, using asymmetric air-gap structure causes cogging torque increase. Therefore, this paper proposes the notch shape structure. Notch shape structure has some advantages; low cost, easy to apply. There are 4 optimal factors selected in optimization process, which are position and size of notches. Through building a prototype, the result of FE analysis and the experimental measurement value are compared each other and then vailidity and utility of simulation will be verified.

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