Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2003.11a
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- Pages.350-355
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- 2003
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- 1598-2548(pISSN)
Vibration Analysis of the End-winding of Large Generator for Fossil Power Plant under Electromagnetic Excitation
대형 화력 발전용 발전기 권선단부의 전자기력에 의한 진동 해석
Abstract
This paper presents results of vibration analysis of a end-winding of large generator for fossil power plant. A finite element analysis using a commercial S/W is performed to calculate alternating electromagnetic forces, mainly of 120㎐ in 60㎐ machines, acting on the end-winding, and then to calculate forced response of the end-winding under electromagnetic forces. Also, this paper presents analytical and experimental modal analysis results of generator end-winding to validate FE model. We calculated forced response of end-winding on 120㎐, double rotating frequency. These results will be used to evaluate structural reliability of end-winding and applied to update model.
Keywords
- Generator End-winding;
- 3-D Electromagnetic Field Analysis;
- Electromagnetic Forces;
- Modal Analysis;
- Forced Response
- 발전기 권선단부;
- 3차원 전자장 해석;
- 전자기력;
- 모드해석;
- 강제진동 응답;