Research Article Application of Composite Method for Determining Fault Location on Electrical Power Distribution Lines Chinweike Okoli , 1 Boniface Anyaka, 1 Chidiogo Nwokedi, 2 and Victor Anya 1 1 Department of Electrical Engineering, University of Nigeria, Nsukka, Nigeria 2 Department of Computer Science, Federal Polytechnic, Oko, Anambra, Nigeria CorrespondenceshouldbeaddressedtoChinweikeOkoli;chinweike.okoli@unn.edu.ng Received 9 June 2020; Accepted 6 August 2020; Published 1 September 2020 AcademicEditor:AntonioJ.MarquesCardoso Copyright © 2020 Chinweike Okoli et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Distributionlineisoneofthemostimportantcomponentsofthedistributionsystem.Troubleshootingfaultsontheselinesare oftenatedioustaskrequiringservicevehiclesandpersonnelmovingfromoneplacetoanotherinordertolocatethefaultandfix theproblem.estudy,therefore,isonhowacompositefaultlocationtechniquecanbeappliedtopredictthelocationoffaultson the distribution lines. e calculations for the estimation of the fault location are performed using one terminal voltage and currentdataofthedistributionline.Acompositemethodthatcombinestheimpedance-basedmethodandthefuzzyinference systemmethodisusedinthefaultlocationalgorithm.epresentedalgorithmhasbeenextensivelytestedusingtheMATLAB- Simulinkmodelofa33KV40-kilometerdistributionline.esimulationresultdemonstratesgoodaccuracyandrobustnessof the algorithm. 1.Introduction In developing countries, inadequate provision of social amenities abound which undoubtedly include poor elec- tricity supply. Distribution of electricity in these areas has been haunted by continuous malfunctions of electrical equipment especially distribution lines. So far, corrective maintenance is often done by the usual method; that is, personnelpatrolaroundinaservicevanfromplacetoplace in an effort to locate the fault [1]. Responding to this sit- uationinthismannerisunarguablyinefficientasthepatrol teamspendstimelocatingthefaultand,insomecases,may mistaketheplacewherethefaultoccurredforanotherplace. is has led to lengthened downtime and hence has made power delivery unreliable. erefore, there is a need for a timely,effective,andefficientmethodoflocatingfaults.is paperdiscussesatechniqueinthemaintenanceofelectricity distribution infrastructure by bringing about on-time lo- cation of faults. Maintenanceisdefinedin[2]asthecombinationofall technical and administrative actions with the intention of retaininganequipmentin(orrestoreitto)anoperatingstate in order for it to perform its required functions. It is also definedasanyworkundertakeninordertokeeporrestorea facilitytoanyacceptablestandard.Asstatedin[2],thereare two broad types of maintenance, namely, preventive maintenanceandcorrectivemaintenance.Whilepreventive maintenance includes condition monitoring and servicing, aswellasplannedoutages,correctivemaintenanceinvolves modifying faulted equipment so as to restore normal op- eration. is paper addresses the problem of corrective maintenance on distribution lines. Accordingto[3],faultscanbecausedbyshort-circuits, faulty equipment, disoperation, overload, growing vegeta- tion,aging,etc.Basedonstatistics,linefaultshappentobe thecommonestfaultsinpowersystems[3].Linefaultsthat occurinpowersystemsincludesingleline-to-ground,line- to-line, double line-to-ground, and balanced three-phase faults [4]. Faults may be temporary (if the fault is cleared after the circuit breaker closes back) or permanent (if the fault is not cleared after opening and closing of the circuit breaker)[5].Permanentfaultscanleadtolossofservicelines Hindawi Journal of Electrical and Computer Engineering Volume 2020, Article ID 2836940, 9 pages https://doi.org/10.1155/2020/2836940