A vibration analysis of cable-type winding for distribution power transformer by using a semi-analytic method
- Authors
- Jung, W.H.; Sung-Hyun, W.; Pan, S.S.; Jinhee, L.
- Issue Date
- 2007
- Publisher
- IEEE Computer Society
- Keywords
- Cabletype winding; Eigenvalue analysis; Forced vibration; Power transformer; Pseudospectral method
- Citation
- Proceeding of International Conference on Electrical Machines and Systems, ICEMS 2007, pp.1304 - 1308
- Journal Title
- Proceeding of International Conference on Electrical Machines and Systems, ICEMS 2007
- Start Page
- 1304
- End Page
- 1308
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/24219
- DOI
- 10.1109/ICEMS12746.2007.4412336
- ISSN
- 0000-0000
- Abstract
- This paper proposes a simulation method of the internal winding fault to calculate the short-circuit current, electromagnetic force and vibration mode in a distribution power transformer by suing FEM and analytic algorithm. A usage of the pseudospectral method is also presented for the vibration analysis of the winding during the short-circuit. The equations of the winding are approximated by the series expansions of Chebyshev polynomials and the Gauss-Lobatto collocation process is performed. The simulation examples are provided for the cable type winding of the transformer (22.9kV/220V, 1000kVA) to verify the method. The simulation results are in good agreement with FEM solutions and analytical methods.
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Collections - 교학처 > 교양과(세종) > 1. Journal Articles
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