A vibration analysis of cable-type winding for distribution power transformer by using a semi-analytic method
- Authors
- Ha, Jung Woo; Woo, Sung-Hyun; Shin, Pan Seok; Lee, Jinhee
- Issue Date
- 2007
- Publisher
- IEEE
- Keywords
- forced vibration; eigenvalue analysis; cable-type winding; pseudospectral method; power transformer
- Citation
- 2007 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-4, pp.1967 - 1971
- Journal Title
- 2007 INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS, VOLS 1-4
- Start Page
- 1967
- End Page
- 1971
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/29962
- 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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