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dc.contributor.authorLantsev, Dmitrijcs
dc.contributor.authorFrolov, Vladimircs
dc.contributor.authorZverev, Sergejcs
dc.contributor.authorUhrlandt, Dirkcs
dc.contributor.authorValenta, Jiřícs
dc.date.accessioned2022-03-22T15:56:35Z
dc.date.available2022-03-22T15:56:35Z
dc.date.issued2021-10-29cs
dc.identifier.citationJournal of Mining Institute. 2021, vol. 251, issue 5, p. 738-744.en
dc.identifier.issn2411-3336cs
dc.identifier.other175914cs
dc.identifier.urihttp://hdl.handle.net/11012/204026
dc.description.abstractThe article presents the principle of thermal protection of the contact overheadlineand substantiates the possibility of practical implementation of this principle for rail electric transport in the mining industry. The algorithm for the implementation of modern digital protection of the contact overhead line as one of the functions of the controller is described. A mathematical model of thermal protection is proposed, which follows from the solution of the heat balance equation. The model takes into account the coefficient of the electrical networktopology, as well as the coefficient of consumption of the current-carrying core of the cable, which determines the reduction in the conducting section from contact erosion and the growth of oxide films. Corrections for air flows are introduced when receiving data from an external anemometer, via telemechanics protocol. The mathematical model was tested by writing a real thermal protection program in the C programming language for the bay controller, based on the circuitry of which is the STM32F407IGT6 microcontroller for the microcontroller unit. Verification tests were carried out on a serial bay controller in 2020. The graphs for comparing the calculated and actual values of temperatures, with different flow rates of the current-carrying conductor of the DC cable, are given. To obtain data, telemechanics protocols IEC 60870-104 and Modbus TCP, PLC Segnetics SMH4 were used.en
dc.formattextcs
dc.format.extent738-744cs
dc.format.mimetypeapplication/pdfcs
dc.language.isoencs
dc.publisherSaint Petersburg Minin Universitycs
dc.relation.ispartofJournal of Mining Institutecs
dc.relation.urihttps://pmi.spmi.ru/index.php/pmi/article/view/14684?setLocale=en_UScs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectCONTACT OVERHEAD LINETHERMAL PROTECTIONen
dc.subjectRELAY PROTECTIONen
dc.subjectPROTECTIVE EQUIPMENT FOR TRACTION SUBSTATIONSen
dc.titleThermal protection implementation of the contact overheadline based on bay controllers of electric transport traction substations in the mining industryen
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav výkonové elektrotechniky a elektronikycs
sync.item.dbidVAV-175914en
sync.item.dbtypeVAVen
sync.item.insts2022.03.22 16:56:35en
sync.item.modts2022.03.22 16:15:00en
dc.coverage.issue5cs
dc.coverage.volume251cs
dc.identifier.doi10.31897/PMI.2021.5.13cs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2411-3336/cs
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen


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Creative Commons Attribution 4.0 International
Except where otherwise noted, this item's license is described as Creative Commons Attribution 4.0 International