Fault Location on a Transmission Line Using Synchronized Voltage Measurements

Brahma, Sukumar; Girgis, A.A.

doi:10.1109/tpwrd.2003.822532

Cited by 152 publications

(82 citation statements)

References 17 publications

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“…With the development of cheap communication between substations, the two-terminal fault location methods become more widely used [25,26,27,28,29]. Because more information is available for calculating the fault location, the performance of these methods is generally better than single-terminal methods.…”

Section: Impedance-based Methodsmentioning

confidence: 99%

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Online Location of Faults on AC Cables in Underground Transmission Systems

Jensen

2014

Springer Theses

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University in partial fulfilment of the requirements for the PhD degree in Electrical Engineering. The research has been carried out between the 1.09.2010 and the 15.07.2013 at the Department of Energy Technology for Energinet.dk by which I was hired as a PhD-student for the entire project period.The project has been followed full time by two supervisors: Professor Claus Leth Bak (Department of Energy Technology) and Dr. Unnur Stella Gudmundsdottir (Energinet.dk).Energinet.dk has fully funded the research leading to this thesis "Online Location of Faults on AC Cables in Underground Transmission Systems". This funding has been vital for this research project. Travelling to conferences, two visits at forging research institutions, renting of laboratory equipment and performance of and field measurements was made possible thanks to support from the company. During the projet period I supervised two master projects and thought one semester course in power system transients.The scientific papers written as a part of this PhD are included in the back of both the printed version of the thesis as well as in the PDF-file. The papers should not be considered a part of this monograph, but are enclosed if the reader is interested.This thesis has five parts and appendices. An overall literature reference list is presented at the end of the main report. A list of the authored publications is presented at the end of the thesis. Literature references are shown as [i], where i is the number of the literature in the reference list. Tables, figures and equations are shown as C.F, where C is the chapter number and F is a unique number for the figure or table. AcknowledgementsI owe gratitude to many people who helped me in different ways. I would like to thank:• My supervisors, Claus Leth Bak and Unnur Stella Gudmundsdottir for all their help, comments, and many technical discussions during the last three years.• Carl-Erik Madsen, Henrik Kastberg and Carl Willi Hansen for their help with carrying out the field measurements. In the same regards, a very special thanks is extended to Filipe Faria da Silva and Unnur Stella Gudmundsdottir for participating during all measurements.• Filipe Faria da Silva for numerous technical discussions, for reading large parts of the thesis and for many good times in the office.• Rasmus Schmidt Olsen, Unnur Stella Gudmundsdottir, Joachim Holbøll, Per Balle Holst, Poul Erik Pedersen, Thomas Kvarts, Carsten Rasmussen, Claus Leth Bak and Bjarne Søndergaard Bukh for their contributions and comments during the project period.• Everyone at the transmission department at Energinet.dk for their contributions.• Professor Ali Abur for his hospitality and comments to my work during my three month stay at North Eastern University in Boston 2012.• • A special thanks to Dr. Jeewantha Da Silva for numerous discussions, valuable advice and guidance throughout the entire project period.• To Prof. Athula Rajapakse and PhD-student Kasun Nanayakkara both from University of Manitoba, Winnipeg, Manitoba for valuable discuss...

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Section: Impedance-based Methodsmentioning

confidence: 99%

“…Several publications discuss the problems associated with the use of current measurements for fault location due the current transformer (CT) saturation [25,28]. CT saturation can introduce errors when the fundamental phasors are determined from the transient signals recorded at the fault locator terminals.…”

Section: Impedance-based Methodsmentioning

confidence: 99%

Online Location of Faults on AC Cables in Underground Transmission Systems

Jensen

2014

Springer Theses

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“…It is worth noting that variables L and C are not only seen in Z s , they also affect the value of t xS and hence n xS . GA which is based on the evolution theory is mainly used in this paper to solve the optimisation problem in (6). The method will assume chromosome-like answers for the optimisation problem.…”

Section: Proposed Fault Location Algorithmmentioning

confidence: 99%

“…Accurate fault location in both cases of permanent and temporary faults is useful and can reduce the time and expenses of repairing the faulted line and would yield continuity of service [1]. Different methods have been presented so far for calculating the exact location of faults on transmission lines [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Conventional methods [2-10] directly calculate the location of fault using the governing equations between voltages and currents based on the model they consider for the transmission line.…”

Section: Introductionmentioning

confidence: 99%

Parameter‐free fault location for transmission lines based on optimisation

Davoudi

Sadeh

Kamyab

2015

IET Generation, Transmission & Distribution

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An accurate algorithm for locating faults on two-terminal transmission lines is presented in this study. The presented method does not require values of line parameters to locate the fault; therefore variation of line parameter values does not affect its accuracy. The method utilises synchronous post-fault measurements of currents and voltages in both terminals and is based on the distributed time-domain representation of transmission lines. Unlike conventional methods, fault location is converted to an optimisation problem. Then, this problem is solved by genetic algorithm to find the accurate location of fault. Furthermore, modifying the problem to be solved by the Newton optimisation method is discussed in this study. Simulation results performed by ATP/EMTP verify high accuracy of the presented method, and reveal that it is not significantly affected by fault resistance, fault type, fault inception angle and source impedance. Moreover, effect of measurement errors and synchronisation errors on the accuracy of presented method have been analysed which verify the efficiency of the algorithm in these conditions.

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“…Synchronised input currents of all terminals are used in [6] for fault location. Using postfault and past-fault voltage phasors, [7] presents a method for fault location in the case multi-terminal transmission lines.…”

Section: Introductionmentioning

confidence: 99%

Impedance based fault location method for phase to phase and three phase faults in transmission systems

Shateri¹,

Jamali²

2012

11th IET International Conference on Developments in Power Systems Protection (DPSP 2012)

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This paper presents a new impedance based fault location method in the case of phase to phase and three phase faults. This method utilized the measured impedance by distance relay and super imposed current factor, which is the ratio of post-fault current to super imposed current, to discriminate the fault position on the line. This method is robust against the fault resistance. The presented method only uses the measured impedance by distance relay, the super imposed current factor and few data which could be achieved through the SCADA based databases.

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Fault Location on a Transmission Line Using Synchronized Voltage Measurements

Cited by 152 publications

References 17 publications

Online Location of Faults on AC Cables in Underground Transmission Systems

Online Location of Faults on AC Cables in Underground Transmission Systems

Parameter‐free fault location for transmission lines based on optimisation

Impedance based fault location method for phase to phase and three phase faults in transmission systems

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