The Influence of External Parameters on Transformer Frequency Response Signature and Numerical Indices

Venera Nurmanova, Auyez Khassenov, Mehdi Bagheri, Toan Phung, Gevork B. Gharehpetian

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Frequency Response Analysis (FRA) is considered as a well-established technique to evaluate transformer winding and core structures. This evaluation would be reported in a wide frequency range spectrum. FRA is quite accurate technique; however, it is very sensitive to be affected via the external parameters. In this study, to analyze the external parameters influences on FRA spectrum, different topologies of external lumped parameters, namely series impedance, shunt impedance (ground resistance and capacitance to ground), and parallel to winding impedance are emulated, practically implemented and examined. In order to do that, four statistical indices such as Correlation Coefficient (CC), Euclidean distance, Root Mean Square Error (RMSE) and Absolute Sum of Logarithmic Error (ASLE) are calculated to explore the effect of external resistance and capacitance on Statistical Indicators (SIs). It is revealed that the most significant influence is caused by the impedance parallel to the winding. Moreover, individual analysis of statistical indices assists to identify a healthy region for each transformer unit.

Original languageEnglish
Title of host publicationProceedings - 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728106526
DOIs
Publication statusPublished - Jun 2019
Event19th IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2019 - Genoa, Italy
Duration: Jun 11 2019Jun 14 2019

Publication series

NameProceedings - 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2019

Conference

Conference19th IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2019
CountryItaly
CityGenoa
Period6/11/196/14/19

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Keywords

  • frequency response analysis
  • numerical indices
  • power transformer testing
  • sensitivity

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering
  • Environmental Engineering
  • Control and Optimization

Cite this

Nurmanova, V., Khassenov, A., Bagheri, M., Phung, T., & Gharehpetian, G. B. (2019). The Influence of External Parameters on Transformer Frequency Response Signature and Numerical Indices. In Proceedings - 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2019 [8783609] (Proceedings - 2019 IEEE International Conference on Environment and Electrical Engineering and 2019 IEEE Industrial and Commercial Power Systems Europe, EEEIC/I and CPS Europe 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/EEEIC.2019.8783609