Print Email Facebook Twitter Methodology for testing a parameter-free fault locator for transmission lines Title Methodology for testing a parameter-free fault locator for transmission lines Author Popov, M. (TU Delft Intelligent Electrical Power Grids) Parmar, Shreya (Student TU Delft) Rietveld, Gert (VSL Dutch Metrology Institute) Preston, Gary (WSP Parsons Brinckerhoff) Radojevic, Zoran (Sungkyunkwan University) Terzija, Vladimir (The University of Manchester) Date 2016 Abstract This paper presents a comparison between two different approaches to fault location both with and without utilising transmission line parameters. Firstly, an impedance-based parameter-dependent algorithm, derived by using modal transformation theory and fast Fourier transform is presented. The methodology is able to locate the fault whether it is on an overhead line or on an underground power cable. The second algorithm is a parameter-free fault location method that uses time synchronised data. Here, the unknown fault location is determined from voltage and current phasors, synchronously measured at both line terminals. This approach to fault location avoids the requirement for prior knowledge of line parameters, which is advantageous as line parameters are not always known precisely. This paper presents the results of algorithm testing through the use of ATPDraw simulations and MATLAB. The results were validated through laboratory experiments. The results of the line parameter-free model are compared with those from the parameter-dependent model. Both algorithms were tested for single line to ground faults. Subject Fault locationLine parametersATPDrawParameter-freeTransmission lineProtection To reference this document use: http://resolver.tudelft.nl/uuid:305ff54e-02b5-40cd-8d63-056825b11bf9 DOI https://doi.org/10.1016/j.epsr.2016.02.007 Embargo date 2018-06-07 ISSN 0378-7796 Source Electric Power Systems Research, 138, 92-98 Event IPST2015, Cavtat, Croatia, 2015-06-15 → 2015-06-18, s.l. Bibliographical note Accepted Author Manuscript Part of collection Institutional Repository Document type journal article Rights © 2016 M. Popov, Shreya Parmar, Gert Rietveld, Gary Preston, Zoran Radojevic, Vladimir Terzija Files PDF 11311353_IPST_ELSEVIER_12 ... v20_02.pdf 1.3 MB Close viewer /islandora/object/uuid:305ff54e-02b5-40cd-8d63-056825b11bf9/datastream/OBJ/view