Partial discharge estimation in a high voltage transformer using multi signal decomposition technique

Ramizi Mohamed, P. L. Lewin, G. Chen

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

Abstract

A practical technique is introduced to determine the possible high frequency oscillations generated by a Partial Discharge (PD) source within a high voltage transformer. the approximation of the discharge signal is difficult to achieve because of the fixed distribution components that are present as well as non-stationary components. To solve this, a Hilbert Huang Transform is introduced to eliminate the presence of any non-stationary offset levels by employing a multi signal decomposition technique. the discharge signal is decomposed into different signal levels, and a least-square estimation technique is used to determine the harmonic decay equation parameters, that consist of signal gain (As), harmonic frequency (UB), damping factor (Ys) and harmonic order (s). the estimated parameters are then used to reconstruct the possible original partial discharge signal oscillation using only the harmonic decay equation. Knowledge of the original discharge signal allows evaluation of the severity of the PD event and may assist in condition based maintenance of the transformer.

Original languageEnglish
Title of host publicationProceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials
Pages425-428
Number of pages4
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009 - Harbin
Duration: 19 Jul 200923 Jul 2009

Other

Other2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009
CityHarbin
Period19/7/0923/7/09

Fingerprint

Partial discharges
transformers
high voltages
Decomposition
decomposition
Electric potential
harmonics
Damping
Mathematical transformations
oscillations
decay
maintenance
damping
evaluation
approximation

Keywords

  • High voltage transformer
  • Multi signal decomposition
  • Partial discharge

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Condensed Matter Physics

Cite this

Mohamed, R., Lewin, P. L., & Chen, G. (2009). Partial discharge estimation in a high voltage transformer using multi signal decomposition technique. In Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials (pp. 425-428). [5252398] https://doi.org/10.1109/ICPADM.2009.5252398

Partial discharge estimation in a high voltage transformer using multi signal decomposition technique. / Mohamed, Ramizi; Lewin, P. L.; Chen, G.

Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. p. 425-428 5252398.

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

Mohamed, R, Lewin, PL & Chen, G 2009, Partial discharge estimation in a high voltage transformer using multi signal decomposition technique. in Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials., 5252398, pp. 425-428, 2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2009, Harbin, 19/7/09. https://doi.org/10.1109/ICPADM.2009.5252398
Mohamed R, Lewin PL, Chen G. Partial discharge estimation in a high voltage transformer using multi signal decomposition technique. In Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. p. 425-428. 5252398 https://doi.org/10.1109/ICPADM.2009.5252398
Mohamed, Ramizi ; Lewin, P. L. ; Chen, G. / Partial discharge estimation in a high voltage transformer using multi signal decomposition technique. Proceedings of the IEEE International Conference on Properties and Applications of Dielectric Materials. 2009. pp. 425-428
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