Modeling of Acoustic Emission Signals Generated in On Load Tap Changer

• Authors: A. Cichoń , S. Borucki , D. Wotzka
• Languages of publication: EN

Abstracts

EN

The paper deals with mathematical modeling of acoustic emission signals which are generated in on load tap changers. In power engineering area acoustic emission method is commonly used for diagnosis purposes. Authors in their research works apply it for detection of defects occurring in on load tap changers, which are important elements of power transformers. The acoustic emission method is based on measurements performed by use of wideband piezoelectric transducers that are mounted on transformer tank surface. The registered signal is then analyzed in the time, frequency, and time-frequency domains or is evaluated with computer expert systems for diagnosis purposes. Depending on indicators device technical condition can be determined. The contribution given by the authors in this paper is proposal of a mathematical model, which describes envelope of the measured acoustic emission signal.

Keywords

EN

43.40.-r; 43.40.Vn; 43.58.Wc

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 125
• Issue: 6
• Pages: 1396-1399

Dates

published

2014-06

Contributors

author

A. Cichoń

• Faculty of Electrical Engineering, Automatic Control and Computer Science, Opole University of Technology Prószkowska 76, 45-758 Opole, Poland

author

S. Borucki

• Faculty of Electrical Engineering, Automatic Control and Computer Science, Opole University of Technology Prószkowska 76, 45-758 Opole, Poland

author

D. Wotzka

• Faculty of Electrical Engineering, Automatic Control and Computer Science, Opole University of Technology Prószkowska 76, 45-758 Opole, Poland

References

• [1] A. Cichoń, Studies and Monographs, Wydawnictwo Politechniki Opolskiej, Vol. 259, Opole 2011 (in Polish)
• [2] A. Cichoń, Studies and Monographs, Wydawnictwo Politechniki Opolskiej, Vol. 352, Opole 2013 (in Polish)
• [3] A. Cichoń, P. Berger, S. Borucki, Measurments Automatics Control 2, 152 (2013) (in Polish)
• [4] Shen Dazhong, A. Kramer, D. Dohnal, in: Int. Conf. on Power Systems Technology, POWERCON 2006, Chongqing (China), 2006, p. 1
• [5] P. Kang, Ph.D. Thesis, Queensland Univ. Technol., Brisbane, Australia 2000
• [6] A. Cichoń, Electric Rev. 4a, 22 (2012) (in Polish) http://www.red.pe.org.pl/abstract_pl.php?nid=5772
• [7] A. Cichoń, S. Borucki, D. Wotzka, M. Szmajda, Acta Phys. Pol. A 122, 804 (2012) http://przyrbwn.icm.edu.pl/APP/PDF/122/a122z5p04.pdf
• [8] J.S. Bendat, A.G. Piersol, Engineering Application of Correlation and Spectral Analysis, Wiley, New York 1993
• [9] J.C. Lagarias, J.A. Reeds, M.H. Wright, P.E. Wright, SIAM J. Optimiz. 9, 112 (1998)

Identifiers

DOI

10.12693/APhysPolA.125.1396