A new arc-based model and condition monitoring algorithm for on-load tap-changers

Behnam Feizifar; Omer Usta

doi:10.1016/j.epsr.2018.10.024

A new arc-based model and condition monitoring algorithm for on-load tap-changers

Behnam Feizifar, Omer Usta

Electronic And Electrical Engineering

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

18 Citations (Scopus)

31 Downloads (Pure)

Abstract

An on-load tap-changer (OLTC) regulates the output voltage level of transformer by changing the winding voltage ratio without current interruption. It is one of the most expensive and vulnerable parts of power transformers. Therefore, modeling and condition monitoring (CM) of OLTCs are important for the power system operation. This paper presents a new modeling principle for OLTCs based on the circuit breaker (CB) arc models. There is a sequence of switching events with certain timings during each operation of OLTC. These switching operations are modeled individually and a full model of OLTC operation is derived. Computer simulation studies and the measurements captured from the real-time test studies of OLTC operation verify and validate the performance of the proposed OLTC model.

Original language	English
Pages (from-to)	58-70
Number of pages	13
Journal	Electric Power Systems Research
Volume	167
Early online date	1 Nov 2018
DOIs	https://doi.org/10.1016/j.epsr.2018.10.024
Publication status	Published - 28 Feb 2019

Keywords

arcing power
arcing energy
circuit breakers
condition monitoring
contact degradation
on-load tap-changers

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10.1016/j.epsr.2018.10.024

Feizifar-Usta-EPSR-2018-A-new-arc-based-model-and-condition-monitoring-algorithm-for-on-load-tap-changersAccepted author manuscript, 1.55 MBLicence: CC BY-NC-ND 4.0

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title = "A new arc-based model and condition monitoring algorithm for on-load tap-changers",

abstract = "An on-load tap-changer (OLTC) regulates the output voltage level of transformer by changing the winding voltage ratio without current interruption. It is one of the most expensive and vulnerable parts of power transformers. Therefore, modeling and condition monitoring (CM) of OLTCs are important for the power system operation. This paper presents a new modeling principle for OLTCs based on the circuit breaker (CB) arc models. There is a sequence of switching events with certain timings during each operation of OLTC. These switching operations are modeled individually and a full model of OLTC operation is derived. Computer simulation studies and the measurements captured from the real-time test studies of OLTC operation verify and validate the performance of the proposed OLTC model.",

keywords = "arcing power, arcing energy, circuit breakers, condition monitoring, contact degradation, on-load tap-changers",

author = "Behnam Feizifar and Omer Usta",

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doi = "10.1016/j.epsr.2018.10.024",

language = "English",

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pages = "58--70",

journal = "Electric Power Systems Research",

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T1 - A new arc-based model and condition monitoring algorithm for on-load tap-changers

AU - Feizifar, Behnam

AU - Usta, Omer

PY - 2019/2/28

Y1 - 2019/2/28

N2 - An on-load tap-changer (OLTC) regulates the output voltage level of transformer by changing the winding voltage ratio without current interruption. It is one of the most expensive and vulnerable parts of power transformers. Therefore, modeling and condition monitoring (CM) of OLTCs are important for the power system operation. This paper presents a new modeling principle for OLTCs based on the circuit breaker (CB) arc models. There is a sequence of switching events with certain timings during each operation of OLTC. These switching operations are modeled individually and a full model of OLTC operation is derived. Computer simulation studies and the measurements captured from the real-time test studies of OLTC operation verify and validate the performance of the proposed OLTC model.

AB - An on-load tap-changer (OLTC) regulates the output voltage level of transformer by changing the winding voltage ratio without current interruption. It is one of the most expensive and vulnerable parts of power transformers. Therefore, modeling and condition monitoring (CM) of OLTCs are important for the power system operation. This paper presents a new modeling principle for OLTCs based on the circuit breaker (CB) arc models. There is a sequence of switching events with certain timings during each operation of OLTC. These switching operations are modeled individually and a full model of OLTC operation is derived. Computer simulation studies and the measurements captured from the real-time test studies of OLTC operation verify and validate the performance of the proposed OLTC model.

KW - arcing power

KW - arcing energy

KW - circuit breakers

KW - condition monitoring

KW - contact degradation

KW - on-load tap-changers

U2 - 10.1016/j.epsr.2018.10.024

DO - 10.1016/j.epsr.2018.10.024

M3 - Article

SN - 0378-7796

VL - 167

SP - 58

EP - 70

JO - Electric Power Systems Research

JF - Electric Power Systems Research

ER -

A new arc-based model and condition monitoring algorithm for on-load tap-changers

Abstract

Keywords

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