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Identification of Magnetizing Inrush and Internal Short-Circuit Fault Current in Vx-Type Traction Transformer
Joint Authors
Li, X. Q.
Tian, X. J.
Li, Yunhua
Source
Advances in Mechanical Engineering
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-07-18
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
This paper deals with the fault diagnosis methodology for the V/x-type traction transformer in railway passenger-dedicated lines.
A kind of the protection methodology to combine empirical mode decomposition (EMD), energy weight, and information entropy is proposed.
This method can sensitively reflect the dynamic information changes of traction transformer differential current, so it can not only effectively identify internal short-circuit fault current from magnetizing inrush but also better identify fault current accompanied with magnetizing inrush.
In this method, the differential current is decomposed by EMD and the energy weight of each intrinsic mode function (IMF) is calculated, and the feature vector of the fault pattern recognition is obtained by constructing IMF energy entropy.
The field-measured data illustrate that the new method not only has the advantages of high sensitivity, faster identification speed, and clear concept but also is available for the diagnosis of the complicated dynamic system.
American Psychological Association (APA)
Li, Yunhua& Tian, X. J.& Li, X. Q.. 2013. Identification of Magnetizing Inrush and Internal Short-Circuit Fault Current in Vx-Type Traction Transformer. Advances in Mechanical Engineering،Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-506909
Modern Language Association (MLA)
Li, Yunhua…[et al.]. Identification of Magnetizing Inrush and Internal Short-Circuit Fault Current in Vx-Type Traction Transformer. Advances in Mechanical Engineering No. 2013 (2013), pp.1-8.
https://search.emarefa.net/detail/BIM-506909
American Medical Association (AMA)
Li, Yunhua& Tian, X. J.& Li, X. Q.. Identification of Magnetizing Inrush and Internal Short-Circuit Fault Current in Vx-Type Traction Transformer. Advances in Mechanical Engineering. 2013. Vol. 2013, no. 2013, pp.1-8.
https://search.emarefa.net/detail/BIM-506909
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-506909