Interpretation of FRA Results through Low Frequency Transformer Modelling

Bozhi Cheng; Peter Crossley; Zhongdong Wang; Paul Jarman; Andrew Fieldsend-roxborough

doi:10.1109/ICEMPE.2019.8727328

Interpretation of FRA Results through Low Frequency Transformer Modelling

Bozhi Cheng, Peter Crossley, Zhongdong Wang, Paul Jarman, Andrew Fieldsend-roxborough

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

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Abstract

Currently there is no standard FRA interpretation methods and not all the FRA practitioners are capable to model transformer windings using equivalent circuits. A low-frequency transformer model of a three-limb core-type 1000 MVA 400/275/13 kV auto-transformer is established to analyze the effects of transformer electric parameters on the FRA plots. The equivalent electrical circuit of the magnetic core is derived based on the Principle of Duality. Air-core inductance and winding capacitances are included in the model. FRA simulation results are validated by measurement results, the suitability of transformer model is discussed and the dominant factors in different frequency regions are concluded through sensitivity studies.

Original language	English
Title of host publication	2019 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE)
Pages	592-595
DOIs	https://doi.org/10.1109/ICEMPE.2019.8727328
Publication status	E-pub ahead of print - 3 Jun 2019
Event	2019 2nd International Conference on Electrical Materials and Power Equipment - Guangzhou, China Duration: 7 Apr 2019 → 10 Apr 2019

Conference

Conference	2019 2nd International Conference on Electrical Materials and Power Equipment
Abbreviated title	ICEMPE
Period	7/04/19 → 10/04/19

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10.1109/ICEMPE.2019.8727328

Interpretation of FRA Results through Low Frequency Transformer ModellingAccepted author manuscript, 1.01 MB

https://ieeexplore.ieee.org/document/8727328/

Cite this

@inproceedings{45bdcd643a4a4506a254785883477e48,

title = "Interpretation of FRA Results through Low Frequency Transformer Modelling",

abstract = "Currently there is no standard FRA interpretation methods and not all the FRA practitioners are capable to model transformer windings using equivalent circuits. A low-frequency transformer model of a three-limb core-type 1000 MVA 400/275/13 kV auto-transformer is established to analyze the effects of transformer electric parameters on the FRA plots. The equivalent electrical circuit of the magnetic core is derived based on the Principle of Duality. Air-core inductance and winding capacitances are included in the model. FRA simulation results are validated by measurement results, the suitability of transformer model is discussed and the dominant factors in different frequency regions are concluded through sensitivity studies.",

author = "Bozhi Cheng and Peter Crossley and Zhongdong Wang and Paul Jarman and Andrew Fieldsend-roxborough",

year = "2019",

month = jun,

day = "3",

doi = "10.1109/ICEMPE.2019.8727328",

language = "English",

pages = "592--595",

booktitle = "2019 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE)",

note = "2019 2nd International Conference on Electrical Materials and Power Equipment , ICEMPE ; Conference date: 07-04-2019 Through 10-04-2019",

}

Cheng, B, Crossley, P, Wang, Z, Jarman, P & Fieldsend-roxborough, A 2019, Interpretation of FRA Results through Low Frequency Transformer Modelling. in 2019 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE). pp. 592-595, 2019 2nd International Conference on Electrical Materials and Power Equipment , 7/04/19. https://doi.org/10.1109/ICEMPE.2019.8727328

TY - GEN

T1 - Interpretation of FRA Results through Low Frequency Transformer Modelling

AU - Cheng, Bozhi

AU - Crossley, Peter

AU - Wang, Zhongdong

AU - Jarman, Paul

AU - Fieldsend-roxborough, Andrew

PY - 2019/6/3

Y1 - 2019/6/3

N2 - Currently there is no standard FRA interpretation methods and not all the FRA practitioners are capable to model transformer windings using equivalent circuits. A low-frequency transformer model of a three-limb core-type 1000 MVA 400/275/13 kV auto-transformer is established to analyze the effects of transformer electric parameters on the FRA plots. The equivalent electrical circuit of the magnetic core is derived based on the Principle of Duality. Air-core inductance and winding capacitances are included in the model. FRA simulation results are validated by measurement results, the suitability of transformer model is discussed and the dominant factors in different frequency regions are concluded through sensitivity studies.

AB - Currently there is no standard FRA interpretation methods and not all the FRA practitioners are capable to model transformer windings using equivalent circuits. A low-frequency transformer model of a three-limb core-type 1000 MVA 400/275/13 kV auto-transformer is established to analyze the effects of transformer electric parameters on the FRA plots. The equivalent electrical circuit of the magnetic core is derived based on the Principle of Duality. Air-core inductance and winding capacitances are included in the model. FRA simulation results are validated by measurement results, the suitability of transformer model is discussed and the dominant factors in different frequency regions are concluded through sensitivity studies.

U2 - 10.1109/ICEMPE.2019.8727328

DO - 10.1109/ICEMPE.2019.8727328

M3 - Conference contribution

SP - 592

EP - 595

BT - 2019 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE)

T2 - 2019 2nd International Conference on Electrical Materials and Power Equipment

Y2 - 7 April 2019 through 10 April 2019

ER -

Interpretation of FRA Results through Low Frequency Transformer Modelling

Abstract

Conference

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