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A Study on Sinewave Air Gap Flux Density of Surface Type Magnet Motor  

Kim, Hyun-Cheol (국방과학연구소)
Kim, Jang-Mok (부산대 전자전기통신공학부)
Kim, Cheul-U (부산대 전자전기통신공학부)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.56, no.9, 2007 , pp. 1571-1576 More about this Journal
Abstract
This report describes the analytical characteristic of sinewave air gap flux density for the brushless AC motor with surface permanent magnet. The analysis of sinewave air gap flux density is the key to expect the performance of back EMF for the design of brushless AC motor. The numerical analysis and FEM analysis are performed to adopt radial and parallel flux magnetization of magnet on the rotor. And it is also executed to vary the magnet arc angle and arc radius for the condition of constant and non constant air gap. This report is focused on the characteristic of sinewave air gap flux density for permanent magnet of surface brushless AC motor. This results also have more reliable data against the previous paper which had the representative numerical analysis of air gap flux density[1][2].
Keywords
Air Gap Flux Density; Sinewave Air Gap Flux Density; Surface Magnet;
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  • Reference
1 N. Boules, 'Prediction of No Load Flux Density Distribution in Permanent Magnet Machines,' IEEE Transactions on Industry Apprications, Vol. IA-21, No. 4, pp. 633-643, 1985   DOI   ScienceOn
2 윤종신, 원종수 '정현파 구동 영구자석 AC 서보모타의 자석치수의 최적설계,' 대한전기학회 논문지, No. 42.5, pp. 12-19, 1993