Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines

Abstract Even though shunt compensation of transmission lines (TLs) is a common practice to limit the overvoltages stemming from the Ferranti effect, it may cause transient and steady‐state resonant overvoltages when one phase is left open due to the single‐pole‐open condition following the temporar...

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Main Authors: Abolfazl Mohammadi, Moein Abedini, Mahdi Davarpanah
Format: Article
Language:English
Published: Wiley 2023-03-01
Series:IET Generation, Transmission & Distribution
Subjects:
Online Access:https://doi.org/10.1049/gtd2.12737
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author Abolfazl Mohammadi
Moein Abedini
Mahdi Davarpanah
author_facet Abolfazl Mohammadi
Moein Abedini
Mahdi Davarpanah
author_sort Abolfazl Mohammadi
collection DOAJ
description Abstract Even though shunt compensation of transmission lines (TLs) is a common practice to limit the overvoltages stemming from the Ferranti effect, it may cause transient and steady‐state resonant overvoltages when one phase is left open due to the single‐pole‐open condition following the temporary phase‐to‐ground (Ph‐g) fault. Furthermore, the existing shunt reactors potentially increase the duration of the secondary arc current at the fault point and hence prevent offering fast single‐pole reclosing. To exploit the mentioned issues, in recent studies, a neutral reactor is introduced, which is installed in the neutral point of the shunt reactors; nonetheless, obtaining the appropriate amount of it is remarkably challenging. In this paper, an optimal neutral reactor (ONR) is determined based on an optimization problem, which minimizes the neutral reactor cost subject to limiting both resonant overvoltages and the duration of the secondary arc current. In modelling, the Laplace domain is employed rather than the phasor domain to consider both transient and steady‐state conditions since this technique allows having better control over transient overvoltages as well as transient secondary arc.
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spelling doaj.art-5c53339ba9c54877a949cb0cc9f1b78b2023-03-24T06:56:07ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952023-03-011761321133210.1049/gtd2.12737Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission linesAbolfazl Mohammadi0Moein Abedini1Mahdi Davarpanah2School of Electrical and Computer Engineering College of Engineering University of Tehran Tehran IranSchool of Electrical and Computer Engineering College of Engineering University of Tehran Tehran IranSchool of Electrical and Computer Engineering College of Engineering University of Tehran Tehran IranAbstract Even though shunt compensation of transmission lines (TLs) is a common practice to limit the overvoltages stemming from the Ferranti effect, it may cause transient and steady‐state resonant overvoltages when one phase is left open due to the single‐pole‐open condition following the temporary phase‐to‐ground (Ph‐g) fault. Furthermore, the existing shunt reactors potentially increase the duration of the secondary arc current at the fault point and hence prevent offering fast single‐pole reclosing. To exploit the mentioned issues, in recent studies, a neutral reactor is introduced, which is installed in the neutral point of the shunt reactors; nonetheless, obtaining the appropriate amount of it is remarkably challenging. In this paper, an optimal neutral reactor (ONR) is determined based on an optimization problem, which minimizes the neutral reactor cost subject to limiting both resonant overvoltages and the duration of the secondary arc current. In modelling, the Laplace domain is employed rather than the phasor domain to consider both transient and steady‐state conditions since this technique allows having better control over transient overvoltages as well as transient secondary arc.https://doi.org/10.1049/gtd2.12737arcs (electric)compensationpower system simulationpower system transientspower transmission linesreactors (electric)
spellingShingle Abolfazl Mohammadi
Moein Abedini
Mahdi Davarpanah
Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines
IET Generation, Transmission & Distribution
arcs (electric)
compensation
power system simulation
power system transients
power transmission lines
reactors (electric)
title Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines
title_full Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines
title_fullStr Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines
title_full_unstemmed Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines
title_short Determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines
title_sort determining optimal neutral reactor to limit overvoltages and duration of secondary arc of transmission lines
topic arcs (electric)
compensation
power system simulation
power system transients
power transmission lines
reactors (electric)
url https://doi.org/10.1049/gtd2.12737
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AT moeinabedini determiningoptimalneutralreactortolimitovervoltagesanddurationofsecondaryarcoftransmissionlines
AT mahdidavarpanah determiningoptimalneutralreactortolimitovervoltagesanddurationofsecondaryarcoftransmissionlines