Fault Location in Double Circuit Medium Power Distribution Networks Using an Impedance Based Method

Rahman Dashti, Seyed Mehdi Salehizadeh, Hamid Reza Shaker, Maryamsadat Tahavori

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The distribution network is extended throughout cities, towns, and villages. Because of the increase in loads and the decrease in power passageways and public corridor reduction, double circuit lines are increasingly being used instead of single circuit lines. Fault location in double circuit power networks is very important because it decreases the repair time and consequently the power outage time. In this paper, a new improved method for fault location in double circuit medium power distribution lines is proposed. The suggested impedance-based fault location method takes into account the mutual effect of double circuit lines on each other. To the best of our knowledge, the proposed method is the first of its kind which supports double circuit distribution networks. In the proposed method, a new quadratic equation for locating fault in power distribution networks is obtained using recorded voltage and current at the beginning of feeder. In this method, the π line model is used for improving the accuracy of the suggested method. The proposed method is supported by mathematical proofs and derivation. To evaluate the accuracy of the proposed method, the proposed method is tested on a thirteen-node network in different conditions, such as instrument error, various fault resistances, and different fault inception angles in various distances and fault types. The numerical results confirm the high accuracy and validity of the proposed method
Original languageEnglish
Article number1034
JournalApplied Sciences
Volume8
Issue number7
Number of pages15
ISSN2076-3417
DOIs
Publication statusPublished - 2018

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Electric fault location
Electric power distribution
impedance
Networks (circuits)
passageways
Instrument errors
instrument errors
quadratic equations
corridors
feeders
Outages
Repair
derivation
Electric potential
electric potential

Keywords

  • Distribution networks
  • Double circuit line
  • Fault location
  • Impedance-based method

Cite this

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title = "Fault Location in Double Circuit Medium Power Distribution Networks Using an Impedance Based Method",
abstract = "The distribution network is extended throughout cities, towns, and villages. Because of the increase in loads and the decrease in power passageways and public corridor reduction, double circuit lines are increasingly being used instead of single circuit lines. Fault location in double circuit power networks is very important because it decreases the repair time and consequently the power outage time. In this paper, a new improved method for fault location in double circuit medium power distribution lines is proposed. The suggested impedance-based fault location method takes into account the mutual effect of double circuit lines on each other. To the best of our knowledge, the proposed method is the first of its kind which supports double circuit distribution networks. In the proposed method, a new quadratic equation for locating fault in power distribution networks is obtained using recorded voltage and current at the beginning of feeder. In this method, the π line model is used for improving the accuracy of the suggested method. The proposed method is supported by mathematical proofs and derivation. To evaluate the accuracy of the proposed method, the proposed method is tested on a thirteen-node network in different conditions, such as instrument error, various fault resistances, and different fault inception angles in various distances and fault types. The numerical results confirm the high accuracy and validity of the proposed method",
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year = "2018",
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Fault Location in Double Circuit Medium Power Distribution Networks Using an Impedance Based Method. / Dashti, Rahman; Salehizadeh, Seyed Mehdi ; Shaker, Hamid Reza; Tahavori, Maryamsadat.

In: Applied Sciences, Vol. 8, No. 7, 1034, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Fault Location in Double Circuit Medium Power Distribution Networks Using an Impedance Based Method

AU - Dashti, Rahman

AU - Salehizadeh, Seyed Mehdi

AU - Shaker, Hamid Reza

AU - Tahavori, Maryamsadat

PY - 2018

Y1 - 2018

N2 - The distribution network is extended throughout cities, towns, and villages. Because of the increase in loads and the decrease in power passageways and public corridor reduction, double circuit lines are increasingly being used instead of single circuit lines. Fault location in double circuit power networks is very important because it decreases the repair time and consequently the power outage time. In this paper, a new improved method for fault location in double circuit medium power distribution lines is proposed. The suggested impedance-based fault location method takes into account the mutual effect of double circuit lines on each other. To the best of our knowledge, the proposed method is the first of its kind which supports double circuit distribution networks. In the proposed method, a new quadratic equation for locating fault in power distribution networks is obtained using recorded voltage and current at the beginning of feeder. In this method, the π line model is used for improving the accuracy of the suggested method. The proposed method is supported by mathematical proofs and derivation. To evaluate the accuracy of the proposed method, the proposed method is tested on a thirteen-node network in different conditions, such as instrument error, various fault resistances, and different fault inception angles in various distances and fault types. The numerical results confirm the high accuracy and validity of the proposed method

AB - The distribution network is extended throughout cities, towns, and villages. Because of the increase in loads and the decrease in power passageways and public corridor reduction, double circuit lines are increasingly being used instead of single circuit lines. Fault location in double circuit power networks is very important because it decreases the repair time and consequently the power outage time. In this paper, a new improved method for fault location in double circuit medium power distribution lines is proposed. The suggested impedance-based fault location method takes into account the mutual effect of double circuit lines on each other. To the best of our knowledge, the proposed method is the first of its kind which supports double circuit distribution networks. In the proposed method, a new quadratic equation for locating fault in power distribution networks is obtained using recorded voltage and current at the beginning of feeder. In this method, the π line model is used for improving the accuracy of the suggested method. The proposed method is supported by mathematical proofs and derivation. To evaluate the accuracy of the proposed method, the proposed method is tested on a thirteen-node network in different conditions, such as instrument error, various fault resistances, and different fault inception angles in various distances and fault types. The numerical results confirm the high accuracy and validity of the proposed method

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KW - Double circuit line

KW - Fault location

KW - Impedance-based method

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