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Open AccessArticle

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

1
Department of Electrical Engineering, Persian Gulf University, Bushehr 7516913817, Iran
2
Bushehr Province Electricity Power Distribution Company, Bushehr 7515784311, Iran
3
Center for Energy Informatics, University of Southern Denmark, 5230 Odense, Denmark
*
Author to whom correspondence should be addressed.
Appl. Sci. 2018, 8(7), 1034; https://doi.org/10.3390/app8071034
Received: 31 May 2018 / Revised: 18 June 2018 / Accepted: 20 June 2018 / Published: 25 June 2018
(This article belongs to the Special Issue Distribution Power Systems)
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. View Full-Text
Keywords: fault location; double circuit line; distribution networks; impedance-based method fault location; double circuit line; distribution networks; impedance-based method
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MDPI and ACS Style

Dashti, R.; Salehizadeh, S.M.; Shaker, H.R.; Tahavori, M. Fault Location in Double Circuit Medium Power Distribution Networks Using an Impedance-Based Method. Appl. Sci. 2018, 8, 1034. https://doi.org/10.3390/app8071034

AMA Style

Dashti R, Salehizadeh SM, Shaker HR, Tahavori M. Fault Location in Double Circuit Medium Power Distribution Networks Using an Impedance-Based Method. Applied Sciences. 2018; 8(7):1034. https://doi.org/10.3390/app8071034

Chicago/Turabian Style

Dashti, Rahman; Salehizadeh, Seyed M.; Shaker, Hamid R.; Tahavori, Maryamsadat. 2018. "Fault Location in Double Circuit Medium Power Distribution Networks Using an Impedance-Based Method" Appl. Sci. 8, no. 7: 1034. https://doi.org/10.3390/app8071034

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