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Design of Air Gap for Reducing Torque Ripple in a Single-Phase BLDC Motor  

Yang, Byeong-Ryeol (한양대 대학원 전자공학과)
Gwon, Byeong-Il (한양대 공대 전자공학과)
Park, Seung-Chan (한양대 컴퓨터제어공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers B / v.51, no.2, 2002 , pp. 49-54 More about this Journal
Abstract
Most single-Phase brushless DC (BLDC) motors have unequal air gap to eliminate the dead-point where the developed torque value is zero. However this partial increase of the air gap deteriorates the motor characteristics in cogging torque. Thus in this paper a new topology of unequal air gap is proposed to solve this problem. The topology is to use some pairs of equal or unequal air gaps. As a result, it is proved by the finite element analysis and experimental results that the single-Phase BLDC motor with the proposed air gap topology is very effective in reducing the cogging torque.
Keywords
cogging torque; dead point; finite element analysis; Single-phase brushless DC motor; unequal air gap.;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
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