Traveling-Wave-Based Fault-Location Scheme for Multiend-Aged Underground Cable System

Gilany, Mahmoud; Ibrahim, Doaa Khalil; Eldin, E.S.T.

doi:10.1109/tpwrd.2006.881439

Cited by 150 publications

(40 citation statements)

References 11 publications

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“…In a recent paper [50], it is suggested that the wave velocity can be eliminated from Eq. 2.1 and 2.2 by combining the two methods.…”

Section: Chapter 2 -Fault In Transmission Cables and Current Fault Lomentioning

confidence: 99%

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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“…In a recent paper [50], it is suggested that the wave velocity can be eliminated from Eq. 2.1 and 2.2 by combining the two methods.…”

Section: Chapter 2 -Fault In Transmission Cables and Current Fault Lomentioning

confidence: 99%

Online Location of Faults on AC Cables in Underground Transmission Systems

Jensen

2014

Springer Theses

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“…2 shows the reflection and refraction of the travelling wave between the bus and the fault point when a fault occurs near M side. When there are more than three incoming lines and outgoing lines on a bus, the wave impedance of the bus is far less than that of the cable, the reflection coefficient at the bus and the refraction coefficient at the fault point are both positive, therefore, the law of the modulus maxima concluded in [15][16] is that the modulus maxima of the initial wave and the reflected wave have the same polarity, while that of the refracted wave from the remote end is opposite to the formers; moreover, the value of the maxima represents the energy of the travelling wave, which attenuates during the propagation gradually.…”

Section: B the Propagation Characteristics Of The Travelling Wave Onmentioning

confidence: 99%

Travelling-wave-based on-line fault location scheme for 110kV power cable

Xia

Zhang

et al. 2012

2012 Power Engineering and Automation Conference

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This paper presents a novel wavelet-based fault location scheme for 110kV cable when the digital fault recorded data are available at the two terminals of each cable. Three phase current signals are decoupled into two aerial modes and one zero mode with the phase-mode transformation. The theory of wavelet singularity detection is applied to extract the arrival time of the travelling wave from the aerial mode which are necessary for fault location. The proposed scheme can determine the fault location without the support of GPS and has the ability to eliminate the uncertain factor including wave velocity and transition impedance. Characteristics of the proposed fault location scheme are studied with some simulation cases by using PSCAD/EMTDC. The results indicate that the proposed scheme has acceptable accuracy for fault location.

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“…The method reported in [2] uses multi end system to locate the fault in power cable lines by using wavelet transform to collect the high frequency signals. However, the method mentioned in [2] uses the sampling frequency which is quite high and difficult for practical implementation.…”

Section: Introductionmentioning

confidence: 99%

Signal processing technique based fault location of a distribution line

Ray

Mishra

2015

2015 IEEE 2nd International Conference on Recent Trends in Information Systems (ReTIS)

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This paper presents a hybrid signal processing technique to detect the fault in a 11 kV, 30 km distribution line with R-L load placed at the receiving end. The proposed method uses 1 cycle post fault voltage and current signal wave form sending end of the system under study. Further preprocessing of the collected signal is done by wavelet packet transform and discrete wavelet transform (DWT) which includes decomposition of the signal and feature extraction. Thereafter from the total feature set, redundant features are removed and best features are selected by genetic algorithm (GA) based feature collection method in order to improve the precision and reduce computational difficulty. To simulate the model accurately, sampling frequency taken is 30 kHz. Train and test data set are generated by considering various operating conditions which are made entirely different in order to make the suggested method strong to parameter variations. Artificial neural network (ANN)/Support vector machine (SVM) is used for prediction purpose. Then optimal features are fed to artificial neural network/ support vector machine to detect the fault location. It was observed from the simulation outcomes that the suggested method is quite accurate and fast as compared to schemes investigated by other researchers.

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Traveling-Wave-Based Fault-Location Scheme for Multiend-Aged Underground Cable System

Cited by 150 publications

References 11 publications

Online Location of Faults on AC Cables in Underground Transmission Systems

Online Location of Faults on AC Cables in Underground Transmission Systems

Travelling-wave-based on-line fault location scheme for 110kV power cable

Signal processing technique based fault location of a distribution line

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