Study of transformer winding deformation by frequency response analysis

Yousof, M. F. M., Ekanayake, C. and Saha, T. K. (2013). Study of transformer winding deformation by frequency response analysis. In: Power and Energy Society General Meeting (PES), 2013 IEEE. 2013 IEEE Power and Energy Society General Meeting, PES 2013, Vancouver, BC, (). 21-25 July 2013. doi:10.1109/PESMG.2013.6672525

Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials)
Name Description MIMEType Size Downloads

Author Yousof, M. F. M.
Ekanayake, C.
Saha, T. K.
Title of paper Study of transformer winding deformation by frequency response analysis
Conference name 2013 IEEE Power and Energy Society General Meeting, PES 2013
Conference location Vancouver, BC
Conference dates 21-25 July 2013
Proceedings title Power and Energy Society General Meeting (PES), 2013 IEEE
Journal name IEEE Power and Energy Society General Meeting
Place of Publication Piscataway, NJ United States
Publisher I E E E
Publication Year 2013
Year available 2013
Sub-type Fully published paper
DOI 10.1109/PESMG.2013.6672525
Open Access Status
ISBN 9781479913039
ISSN 1932-5517
1944-9925
Total pages 5
Collection year 2014
Language eng
Abstract/Summary This paper proposes a methodology to interpret frequency response measurements of a deformed transformer winding due to conductors tilt. To achieve that, geometrical parameters of a three phase prototype transformer is used to simulate the frequency response of one of the windings using the multi-conductor transmission line model. To simulate the response, inter-turn, inter-disc and inter-winding capacitances of the winding based on normal and deformed conditions are computed using finite element method. Using the computed values, the frequency response for both normal and deformed conditions are simulated. The simulated responses are studied by subdividing into four frequency regions and compared using the correlation coefficient. For further analysis, the vector fitting algorithm was implemented to approximate the transfer function of each response. All transfer functions are then represented in the Nyquist diagram to analyse the shape of each plot. From the Nyquist diagram, it was observed that the real minimum of each plot increases as the winding deformation increases. This finding can be used to estimate the winding deformation severity based on the plotted attributes.
Keyword Frequency response analysis
Multi conductor transmission lines
Transfer functions
Transformer windings
Q-Index Code E1
Q-Index Status Confirmed Code
Institutional Status UQ

 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 0 times in Thomson Reuters Web of Science Article
Scopus Citation Count Cited 0 times in Scopus Article
Google Scholar Search Google Scholar
Created: Tue, 18 Feb 2014, 01:25:21 EST by System User on behalf of School of Information Technol and Elec Engineering