Publication detail

# Two-Terminal Algorithm Analysis for Unsymmetrical Fault Location on 110 kV Lines

BUKVIŠOVÁ, Z. ORSÁGOVÁ, J. TOPOLÁNEK, D. TOMAN, P.

Original Title

Two-Terminal Algorithm Analysis for Unsymmetrical Fault Location on 110 kV Lines

Type

journal article in Web of Science

Language

English

Original Abstract

This work analyses a two-terminal algorithm designed to locate unsymmetrical faults on 110 kV power transmission lines. The algorithm processes synchronized voltage and current data obtained from both ends of the protected transmission line and calculates the distance of the fault. It is based on decomposing the equivalent circuit into the positive-, negative- and zero-sequence components and finding the point where the output voltages of the right and the left side of the transmission line are equal. Compared to the conventional distance relay locator, the accuracy of this method is higher and less influenced by the fault resistance, the parallel-operated line effect and line asymmetry, as discussed in this work. It is, however, very sensitive to the synchronization accuracy. The mathematical model of the power system was created in the PSCAD (Power Systems Computer Aided Design) environment and the computational algorithm was implemented in Mathematica software.

Keywords

unsymmetrical fault location; two-terminal algorithm; sequence components

Authors

BUKVIŠOVÁ, Z.; ORSÁGOVÁ, J.; TOPOLÁNEK, D.; TOMAN, P.

Released

27. 3. 2019

Publisher

MDPI

Location

Basel, Switzerland

ISBN

1996-1073

Periodical

ENERGIES

Year of study

12

Number

7

State

Swiss Confederation

Pages from

1

Pages to

14

Pages count

14

URL

Full text in the Digital Library

BibTex

``````@article{BUT156564,
author="Zuzana {Bukvišová} and Jaroslava {Orságová} and David {Topolánek} and Petr {Toman}",
title="Two-Terminal Algorithm Analysis for Unsymmetrical Fault Location on 110 kV Lines",
journal="ENERGIES",
year="2019",
volume="12",
number="7",
pages="1--14",
doi="10.3390/en12071193",
issn="1996-1073",
url="https://www.mdpi.com/1996-1073/12/7/1193"
}``````