Evaluation of Harmonics Impact on Digital Relays

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dc.contributor.authorWannous, Kinan Hasan Wafaacs
dc.contributor.authorToman, Petrcs
dc.coverage.issue4cs
dc.coverage.volume11cs
dc.date.issued2018-04-11cs
dc.description.abstractThis paper presents the concept of the impact of harmonic distortion on a digital protection relay. The aim is to verify and determine the reasons of a mal-trip or failure to trip the protection relays; the suggested solution of the harmonic distortion is explained by a mathematical model in the Matlab Simulink programming environment. The digital relays have been tested under harmonic distortions in order to verify the function of the relays algorithm under abnormal conditions. The comparison between the protection relay algorithm under abnormal conditions and a mathematical model in the Matlab Simulink programming environment based on injected harmonics of high values is provided. The test is separated into different levels; the first level is based on the harmonic effect of an individual harmonic and mixed harmonics. The test includes the effect of the harmonics in the location of the fault point into distance protection zones. This paper is a new proposal in the signal processing of power quality disturbances using Matlab Simulink and the power quality impact on the measurements of the power system quantities; the test simulates the function of protection in power systems in terms of calculating the current and voltage values of short circuits and their faults. The paper includes several tests: frequency variations and decomposition of voltage waveforms with Fourier transforms (model) and commercial relay, the effect of the power factor on the location of fault points, the relation between the tripping time and the total harmonic distortion (THD) levels in a commercial relay, and a comparison of the THD capture between the commercial relay and the model.en
dc.formattextcs
dc.format.extent893-893cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationENERGIES. 2018, vol. 11, issue 4, p. 893-893.en
dc.identifier.doi10.3390/en11040893cs
dc.identifier.issn1996-1073cs
dc.identifier.orcid0000-0003-2402-3007cs
dc.identifier.orcid0000-0002-1708-009Xcs
dc.identifier.other146944cs
dc.identifier.researcheridO-1337-2018cs
dc.identifier.researcheridO-2269-2014cs
dc.identifier.scopus56267322700cs
dc.identifier.scopus56423885700cs
dc.identifier.urihttp://hdl.handle.net/11012/70945
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofENERGIEScs
dc.relation.urihttp://www.mdpi.com/1996-1073/11/4/893cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1073/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectprotection relayen
dc.subjectSimulinken
dc.subjectMatlaben
dc.subjectOmicron CMC 256plusen
dc.subjectpower qualityen
dc.subjectenerlyzeren
dc.subjectcomtradeen
dc.subjectdistance protectionen
dc.titleEvaluation of Harmonics Impact on Digital Relaysen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-146944en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:39:10en
sync.item.modts2025.01.17 15:25:59en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. oddělení-EEN-CVVOZEcs
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