http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Wenliang Zhao(조문량),Thomas Anthony Lipo,Byung-il Kwon(권병일) 대한전기학회 2012 대한전기학회 학술대회 논문집 Vol.2012 No.11
This paper presents a novel sinusoidal permanent magnet (PM) shape for Surface-Mounted PM (SPM) Motors to minimize cogging torque and torque ripple. Previous work has shown sinusoidal PM structure can produce sinusoidal back EMF for reducing torque pulsation. In this paper, the sinusoidal PM pole shape is designed symmetrically in the axial direction, providing balanced motor structure, which turns out to achieve much less cogging torque and torque ripple. Motor characteristics such as back EMF, cogging torque and electromagnetic torque are analyzed by 3-D finite element method (FEM). In order to highlight the advantage of proposed PM shape, all simulation results are compared to conventional square PM shape and previous sinusoidal PM shape SPM motors.