Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1995.07a
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- Pages.171-173
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- 1995
Analysis of Resultant Harmonic Field Density in Air Gap for Ratio Teeth Pitch vs Slot Width
치절(teeth pitch)과 슬롯폭의 비에 의한 공극의 합성고조파밀도해석
- Lee, Eun-Woong (Chung Nam Univ) ;
-
Cho, Hyun-Gil
(Chung Nam Univ)
;
- Kim, Jong-Gyeum (KOWACO) ;
- Lim, Jae-Il (KOWACO) ;
- Kim, Sung-Hyun (Cheon An Technical Junior College)
- Published : 1995.07.20
Abstract
Slot field harmonics exist in air gap due to inevitable slot constructure of induction motors. They give rise to noise by the electromagnetic vibration and mechanical pulsation. We calculate the slot field harmonics for varying the ratio of slot width vs teeth pitch using the carter's coefficent. We computate the flux density in air gap by FEM(Finite Element Method) and analyze it in frequency domain using DFT(Discrete Fourier Transform). We develop the new algorithm mixing FEM with DFT.
Keywords