A New Interpretation of FRA Results by Sensitivity Analysis Method of Two FRA Measurement Connection Ways

Shuhong Wang; Song Wang; Hanke Feng; Ze Guo; Shuang Wang; Hailin Li

doi:10.1109/TMAG.2017.2743986

A New Interpretation of FRA Results by Sensitivity Analysis Method of Two FRA Measurement Connection Ways

Shuhong Wang
, Song Wang
, Hanke Feng
, Ze Guo
, Shuang Wang
, Hailin Li

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

28 Citations (Scopus)

Abstract

As a reliable and non-destructive technique, frequency response analysis (FRA) has been widely recognized for transformer winding deformation detection and assessment. In this paper, frequency response functions (FRFs) are obtained by two different FRA measurement connection ways, namely, end-to-end voltage ratio (EE) and transfer voltage (TF) ratio measurements. At the same time, according to the two ways, sensitivities of the FRFs to electrical parameters of the equivalent circuit model of the transformer winding are investigated. Based on Tellegen theorem, adjoint network method is derived to calculate the values of the sensitivities of FRFs to electrical parameters. Meanwhile, the sensitivity characteristics of circuit parameters are studied. In addition, by comparing the sensitivity results of the two ways, the variation laws of the sensitivities under the two different connection approaches are determined. Besides, this paper can provide a new and objective method to interpret the FRA results and give us a better understanding how much the parameter variations can influence the FRA measurement results. © 2017 IEEE.

Original language	English
Article number	8400204
Journal	IEEE Transactions on Magnetics
Volume	54
Issue number	3
DOIs	https://doi.org/10.1109/TMAG.2017.2743986
Publication status	Published - 1 Mar 2018
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

This work was supported by the Nation Natural Science Foundation of China under Grant 51577140.

Research Keywords

Adjoint network
frequency response analysis (FRA)
sensitivity analysis
transformer winding

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title = "A New Interpretation of FRA Results by Sensitivity Analysis Method of Two FRA Measurement Connection Ways",

abstract = "As a reliable and non-destructive technique, frequency response analysis (FRA) has been widely recognized for transformer winding deformation detection and assessment. In this paper, frequency response functions (FRFs) are obtained by two different FRA measurement connection ways, namely, end-to-end voltage ratio (EE) and transfer voltage (TF) ratio measurements. At the same time, according to the two ways, sensitivities of the FRFs to electrical parameters of the equivalent circuit model of the transformer winding are investigated. Based on Tellegen theorem, adjoint network method is derived to calculate the values of the sensitivities of FRFs to electrical parameters. Meanwhile, the sensitivity characteristics of circuit parameters are studied. In addition, by comparing the sensitivity results of the two ways, the variation laws of the sensitivities under the two different connection approaches are determined. Besides, this paper can provide a new and objective method to interpret the FRA results and give us a better understanding how much the parameter variations can influence the FRA measurement results. {\textcopyright} 2017 IEEE.",

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T1 - A New Interpretation of FRA Results by Sensitivity Analysis Method of Two FRA Measurement Connection Ways

AU - Wang, Shuhong

AU - Wang, Song

AU - Feng, Hanke

AU - Guo, Ze

AU - Wang, Shuang

AU - Li, Hailin

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2018/3/1

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N2 - As a reliable and non-destructive technique, frequency response analysis (FRA) has been widely recognized for transformer winding deformation detection and assessment. In this paper, frequency response functions (FRFs) are obtained by two different FRA measurement connection ways, namely, end-to-end voltage ratio (EE) and transfer voltage (TF) ratio measurements. At the same time, according to the two ways, sensitivities of the FRFs to electrical parameters of the equivalent circuit model of the transformer winding are investigated. Based on Tellegen theorem, adjoint network method is derived to calculate the values of the sensitivities of FRFs to electrical parameters. Meanwhile, the sensitivity characteristics of circuit parameters are studied. In addition, by comparing the sensitivity results of the two ways, the variation laws of the sensitivities under the two different connection approaches are determined. Besides, this paper can provide a new and objective method to interpret the FRA results and give us a better understanding how much the parameter variations can influence the FRA measurement results. © 2017 IEEE.

AB - As a reliable and non-destructive technique, frequency response analysis (FRA) has been widely recognized for transformer winding deformation detection and assessment. In this paper, frequency response functions (FRFs) are obtained by two different FRA measurement connection ways, namely, end-to-end voltage ratio (EE) and transfer voltage (TF) ratio measurements. At the same time, according to the two ways, sensitivities of the FRFs to electrical parameters of the equivalent circuit model of the transformer winding are investigated. Based on Tellegen theorem, adjoint network method is derived to calculate the values of the sensitivities of FRFs to electrical parameters. Meanwhile, the sensitivity characteristics of circuit parameters are studied. In addition, by comparing the sensitivity results of the two ways, the variation laws of the sensitivities under the two different connection approaches are determined. Besides, this paper can provide a new and objective method to interpret the FRA results and give us a better understanding how much the parameter variations can influence the FRA measurement results. © 2017 IEEE.

KW - Adjoint network

KW - frequency response analysis (FRA)

KW - sensitivity analysis

KW - transformer winding

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DO - 10.1109/TMAG.2017.2743986

M3 - RGC 21 - Publication in refereed journal

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

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M1 - 8400204

ER -

A New Interpretation of FRA Results by Sensitivity Analysis Method of Two FRA Measurement Connection Ways

Abstract

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