Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations

Mehdi Bagheri; Mohammad Salay Naderi; Trevor Blackburn; Zhang Daming Zhang

doi:10.1109/PECon.2012.6450357

Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations

Mehdi Bagheri, Mohammad Salay Naderi, Trevor Blackburn, Zhang Daming Zhang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Citations (Scopus)

Abstract

Diagnosis methods have been employed to recognize transformer internal defects since many years ago. Frequency Response Analysis (FRA) has been utilized as an offline diagnosis test since last decade to investigate mechanical integrity of transformer while this technique is quite capable to provide worthy information about electromagnetic characteristics of the windings. This study has concentrated on transformer winding frequency response trace oscillations presented in Bode diagram. Mathematical approach using travelling wave theory is employed to explore frequency response trace behavior. The correlation between winding behavior in frequency domain and time domain is highlighted. Eventually, practical study has been performed on continuous and interleaved 66 kV disc windings to validate mathematical calculation.

Original language	English
Title of host publication	PECon 2012 - 2012 IEEE International Conference on Power and Energy
Pages	962-966
Number of pages	5
DOIs	https://doi.org/10.1109/PECon.2012.6450357
Publication status	Published - 2012
Externally published	Yes
Event	2012 IEEE International Conference on Power and Energy, PECon 2012 - Kota Kinabalu, Malaysia Duration: Dec 2 2012 → Dec 5 2012

Publication series

Name	PECon 2012 - 2012 IEEE International Conference on Power and Energy

Other

Other	2012 IEEE International Conference on Power and Energy, PECon 2012
Country/Territory	Malaysia
City	Kota Kinabalu
Period	12/2/12 → 12/5/12

Keywords

Frequency response analysis
Initial impulse voltage distribution
Transformer
Winding structure

ASJC Scopus subject areas

Energy Engineering and Power Technology
Fuel Technology

Access to Document

10.1109/PECon.2012.6450357

Cite this

Bagheri, M., Naderi, M. S., Blackburn, T., & Daming Zhang, Z. (2012). Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations. In PECon 2012 - 2012 IEEE International Conference on Power and Energy (pp. 962-966). Article 6450357 (PECon 2012 - 2012 IEEE International Conference on Power and Energy). https://doi.org/10.1109/PECon.2012.6450357

Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations. / Bagheri, Mehdi; Naderi, Mohammad Salay; Blackburn, Trevor et al.
PECon 2012 - 2012 IEEE International Conference on Power and Energy. 2012. p. 962-966 6450357 (PECon 2012 - 2012 IEEE International Conference on Power and Energy).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Bagheri, M, Naderi, MS, Blackburn, T & Daming Zhang, Z 2012, Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations. in PECon 2012 - 2012 IEEE International Conference on Power and Energy., 6450357, PECon 2012 - 2012 IEEE International Conference on Power and Energy, pp. 962-966, 2012 IEEE International Conference on Power and Energy, PECon 2012, Kota Kinabalu, Malaysia, 12/2/12. https://doi.org/10.1109/PECon.2012.6450357

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title = "Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations",

abstract = "Diagnosis methods have been employed to recognize transformer internal defects since many years ago. Frequency Response Analysis (FRA) has been utilized as an offline diagnosis test since last decade to investigate mechanical integrity of transformer while this technique is quite capable to provide worthy information about electromagnetic characteristics of the windings. This study has concentrated on transformer winding frequency response trace oscillations presented in Bode diagram. Mathematical approach using travelling wave theory is employed to explore frequency response trace behavior. The correlation between winding behavior in frequency domain and time domain is highlighted. Eventually, practical study has been performed on continuous and interleaved 66 kV disc windings to validate mathematical calculation.",

keywords = "Frequency response analysis, Initial impulse voltage distribution, Transformer, Winding structure",

author = "Mehdi Bagheri and Naderi, {Mohammad Salay} and Trevor Blackburn and {Daming Zhang}, Zhang",

year = "2012",

doi = "10.1109/PECon.2012.6450357",

language = "English",

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AU - Bagheri, Mehdi

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AU - Blackburn, Trevor

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PY - 2012

Y1 - 2012

N2 - Diagnosis methods have been employed to recognize transformer internal defects since many years ago. Frequency Response Analysis (FRA) has been utilized as an offline diagnosis test since last decade to investigate mechanical integrity of transformer while this technique is quite capable to provide worthy information about electromagnetic characteristics of the windings. This study has concentrated on transformer winding frequency response trace oscillations presented in Bode diagram. Mathematical approach using travelling wave theory is employed to explore frequency response trace behavior. The correlation between winding behavior in frequency domain and time domain is highlighted. Eventually, practical study has been performed on continuous and interleaved 66 kV disc windings to validate mathematical calculation.

AB - Diagnosis methods have been employed to recognize transformer internal defects since many years ago. Frequency Response Analysis (FRA) has been utilized as an offline diagnosis test since last decade to investigate mechanical integrity of transformer while this technique is quite capable to provide worthy information about electromagnetic characteristics of the windings. This study has concentrated on transformer winding frequency response trace oscillations presented in Bode diagram. Mathematical approach using travelling wave theory is employed to explore frequency response trace behavior. The correlation between winding behavior in frequency domain and time domain is highlighted. Eventually, practical study has been performed on continuous and interleaved 66 kV disc windings to validate mathematical calculation.

KW - Frequency response analysis

KW - Initial impulse voltage distribution

KW - Transformer

KW - Winding structure

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Transformer Frequency Response Analysis: A mathematical approach to interpret mid-frequency oscillations

Abstract

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Keywords

ASJC Scopus subject areas

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