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A piece-wise linearized transformer winding model for the analysis of internal voltage propagation
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Engineering and Physics (from 2013).ORCID iD: 0000-0001-9750-9863
Technical University of Delft, TUDelft, Delft, Netherlands.
2019 (English)In: 2019 IEEE Milan PowerTech, PowerTech 2019, IEEE, 2019, article id 8810920Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a piece-wise linearized transformer winding model is proposed for transient internal voltage distribution computations. In particular, the model is based on the linearization of the primitive non-linear, frequency dependent and invariant matrix of voltage distribution factors. This primitive matrix is utilized as a pattern from which, for any specific switching event and its frequency spectrum, the piecewise linearized matrix of voltage distribution factors can be computed. In this manner, a unified black-box to lumped-parameters combined transformer model successfully bypasses the need of geometrical data. The computations are also significantly reduced. The model is verified by measurements on a three-phase distribution transformer.

Place, publisher, year, edition, pages
IEEE, 2019. article id 8810920
Keywords [en]
Internal voltage distribution, Lumped-parameters model, Modelling, Overvoltages, Transformer, Transients, Linearization, Matrix algebra, Models, Power quality, Transformer windings, Voltage distribution measurement, Winding, Frequency dependent, Internal voltage, Invariant matrices, Lumped-parameters models, Over-voltages, Transformer modeling, Voltage distribution factor, Lumped parameter networks
National Category
Computer Sciences
Research subject
Computer Science
Identifiers
URN: urn:nbn:se:kau:diva-75717DOI: 10.1109/PTC.2019.8810920Scopus ID: 2-s2.0-85072323901ISBN: 9781538647226 (print)OAI: oai:DiVA.org:kau-75717DiVA, id: diva2:1369688
Conference
2019 IEEE Milan PowerTech, PowerTech 2019, 23 June 2019 through 27 June 2019, Milan, Italy
Available from: 2019-11-12 Created: 2019-11-12 Last updated: 2019-11-21Bibliographically approved

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Theocharis, Andreas

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf