A wavelet-based restricted earth-fault power transformer differential protection

M. N.O. Aires; R. P. Medeiros; F. B. Costa; K. M. Silva; J. J. Chavez; M. Popov

doi:10.1016/j.epsr.2021.107246

A wavelet-based restricted earth-fault power transformer differential protection

M. N.O. Aires, R. P. Medeiros, F. B. Costa, K. M. Silva, J. J. Chavez, M. Popov

Intelligent Electrical Power Grids

Research output: Contribution to journal › Article › Scientific › peer-review

6 Citations (Scopus)

49 Downloads (Pure)

Abstract

This paper proposes a restricted earth fault protection based on the wavelet transform (REFW) for detecting ground faults close to the transformer neutral point (turn-to-ground faults) and supporting the conventional phase differential protection, which presents limitations in this kind of faults. The proposed REFW protection uses only high-frequency components instead of phasor estimation, speeding up the detection of turn-to-ground faults. A performance comparison between the proposed wavelet-based restricted earth-fault differential protection and the respective conventional restricted earth-fault (REF) unit was accomplished considering simulated turn-to-ground faults, involving a few winding turns. The proposed method is more efficient and faster than the conventional one, reaching a success rate of 100%.

Original language	English
Article number	107246
Number of pages	7
Journal	Electric Power Systems Research
Volume	196
DOIs	https://doi.org/10.1016/j.epsr.2021.107246
Publication status	Published - 2021

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Keywords

Power transformer protection
Restricted earth fault protection
Turn-to-ground faults
Wavelet transform

Access to Document

10.1016/j.epsr.2021.107246

1_s2.0_S0378779621002273_mainFinal published version, 1.84 MB

Cite this

@article{faa2e9c8aceb403c845c1c5321571e29,

title = "A wavelet-based restricted earth-fault power transformer differential protection",

abstract = "This paper proposes a restricted earth fault protection based on the wavelet transform (REFW) for detecting ground faults close to the transformer neutral point (turn-to-ground faults) and supporting the conventional phase differential protection, which presents limitations in this kind of faults. The proposed REFW protection uses only high-frequency components instead of phasor estimation, speeding up the detection of turn-to-ground faults. A performance comparison between the proposed wavelet-based restricted earth-fault differential protection and the respective conventional restricted earth-fault (REF) unit was accomplished considering simulated turn-to-ground faults, involving a few winding turns. The proposed method is more efficient and faster than the conventional one, reaching a success rate of 100%.",

keywords = "Power transformer protection, Restricted earth fault protection, Turn-to-ground faults, Wavelet transform",

author = "Aires, {M. N.O.} and Medeiros, {R. P.} and Costa, {F. B.} and Silva, {K. M.} and Chavez, {J. J.} and M. Popov",

note = "Green Open Access added to TU Delft Institutional Repository {\textquoteleft}You share, we take care!{\textquoteright} – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. ",

year = "2021",

doi = "10.1016/j.epsr.2021.107246",

language = "English",

volume = "196",

journal = "Electric Power Systems Research",

issn = "0378-7796",

publisher = "Elsevier",

}

TY - JOUR

T1 - A wavelet-based restricted earth-fault power transformer differential protection

AU - Aires, M. N.O.

AU - Medeiros, R. P.

AU - Costa, F. B.

AU - Silva, K. M.

AU - Chavez, J. J.

AU - Popov, M.

N1 - Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

PY - 2021

Y1 - 2021

N2 - This paper proposes a restricted earth fault protection based on the wavelet transform (REFW) for detecting ground faults close to the transformer neutral point (turn-to-ground faults) and supporting the conventional phase differential protection, which presents limitations in this kind of faults. The proposed REFW protection uses only high-frequency components instead of phasor estimation, speeding up the detection of turn-to-ground faults. A performance comparison between the proposed wavelet-based restricted earth-fault differential protection and the respective conventional restricted earth-fault (REF) unit was accomplished considering simulated turn-to-ground faults, involving a few winding turns. The proposed method is more efficient and faster than the conventional one, reaching a success rate of 100%.

AB - This paper proposes a restricted earth fault protection based on the wavelet transform (REFW) for detecting ground faults close to the transformer neutral point (turn-to-ground faults) and supporting the conventional phase differential protection, which presents limitations in this kind of faults. The proposed REFW protection uses only high-frequency components instead of phasor estimation, speeding up the detection of turn-to-ground faults. A performance comparison between the proposed wavelet-based restricted earth-fault differential protection and the respective conventional restricted earth-fault (REF) unit was accomplished considering simulated turn-to-ground faults, involving a few winding turns. The proposed method is more efficient and faster than the conventional one, reaching a success rate of 100%.

KW - Power transformer protection

KW - Restricted earth fault protection

KW - Turn-to-ground faults

KW - Wavelet transform

UR - http://www.scopus.com/inward/record.url?scp=85104645394&partnerID=8YFLogxK

U2 - 10.1016/j.epsr.2021.107246

DO - 10.1016/j.epsr.2021.107246

M3 - Article

AN - SCOPUS:85104645394

SN - 0378-7796

VL - 196

JO - Electric Power Systems Research

JF - Electric Power Systems Research

M1 - 107246

ER -

A wavelet-based restricted earth-fault power transformer differential protection

Abstract

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this