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Development of the algorithm for energy efficiency improvement of belt conveyor system on open pit mines.

dc.contributor.advisorJeftenić, Borislav
dc.contributor.otherĐurović, Željko M.
dc.contributor.otherIgnjatović, Dragan M.
dc.contributor.otherBebić, Milan
dc.contributor.otherNikolić, Aleksandar
dc.creatorRistić, Leposava
dc.date.accessioned2016-01-05T11:54:39Z
dc.date.available2016-01-05T11:54:39Z
dc.date.available2020-07-03T08:33:01Z
dc.date.issued2012-07-05
dc.identifier.urihttp://eteze.bg.ac.rs/application/showtheses?thesesId=316
dc.identifier.urihttp://nardus.mpn.gov.rs/handle/123456789/2248
dc.identifier.urihttps://fedorabg.bg.ac.rs/fedora/get/o:5760/bdef:Content/download
dc.identifier.urihttp://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=43478799
dc.description.abstractPotrošnja električne energije je u porastu zbog stalne potrebe za poboljšanjem kvaliteta života. Energetska efikasnost je danas jedan od ključnih elementa u energetskoj politici svih razvijenih zemalja sveta, jer doprinosi unapređenju ekonomije u celini, i produžava vek korišćenja neobnovljivih izvora energije, iz kojih se danas dobija najveći deo električne energije. U mnogim zemljama najveći deo električne energije dobija se iz uglja, npr. u Srbiji je 62% svih kapaciteta za proizvodnju električne energije je u termoelektranama na ugalj, a 65% proizvedene električne energije dobija se iz ovih elektrana. U narednim decenijama težište daljih povećanja kapaciteta za proizvodnju električne energije biće na termoelektranama, što će zahtevati povećanje proizvodnje uglja. Povećani zahtevi za proizvodnjom uglja vode ka povećanju količine uglja i jalovine koju treba transportovati u okviru rudnika sistemom tračnih transportera, zbog čega se povećava njihova dužina i kapacitet, a time i instalisana snaga njihovih pogona. Zbog značajnih snaga pogona i po pravilu 24-časovnog rada od posebnog interesa je unapređenje energetske efikasnosti tračnih transportera. U različitim granama industrije, u kojima se proizvodi ili koristi rastresiti materijal, za transport se koriste različiti tipovi tračnih transportera, sa različitim konstruktivnim i pogonskim karakteristikama. Bez obzira na vrstu i organizaciju površinskog kopa, elektromotorni pogoni na rudarskoj mehanizaciji zbog velikih snaga, složenosti rudarske opreme i vrlo teških uslova rada predstavljaju izazov za primenu savremenih metoda pokretanja i upravljanja, u cilju povećanja efikasnosti rada, kao i energetske efikasnosti. Kod konvencionalnih sistema transportera, rastresiti materijal se transportuje stalnom, nazivnom brzinom. Pri nazivnom kapacitetu sistema površina poprečnog preseka materijala na traci je optimalna (maksimalna), odnosno traka je maksimalno popunjena. Međutim, istraživanja i statističke analize pokazuju da ovakvi sistemi zbog tehnologije kopanja bagera vrlo retko rade sa punim kapacitetom, odnosno da se veliki deo radnog vremena na trakama nalazi manja količina materijala od maksimalno moguće, pa čak i da prazan hod čini značajan deo radnog vremena sistemasr
dc.description.abstractElectrical energy consumption is increasing globally in order to keep improving our quality of life. Energy efficiency is today one of the key elements in energy policy of all developed countries in the world, because it contributes to the improvement of economy globally and extends the lifetime of conventional energy sources, since the greatest part of total electrical energy is generated by fossil fuels. In many countries, most electrical energy comes from coal, for example in Serbia, 62% of all capacities for energy production is in thermal power plants which use coal, and they produce 65% of total electrical energy production. In the following decades, the focus will be on thermal power plants to further increase electrical energy capacities, requiring the rise of coal production. The growing demand for coal production leads to increased amounts of coal and overburden to be transported within the mine with belt conveyors systems. The length and the capacity are increasing causing the installed power of these systems to increase. Due to the large power of these drives and existing requirement for continuous operation, 24 hours per day, the improvement of energy efficiency of belt conveyors is naturally of significant interest. In various branches of industry where bulk materials are produced or used, various types of belt conveyors are used for the transport of materials, with different mechanical and drive characteristics. Despite of the type and the organization of the open pit mine, electrical drives on mining machines present a unique challenge to the application of modern techniques of driving and control, due to very large installed power, complexity of mining equipment and demanding environmental conditions, in order to increase the operational and energy efficiency. Conventional systems of conveyors transport bulk material at the constant, rated speed. When the system is at rated capacity, the cross section of material on the belt is at the maximum value, i.e. the belt is fully loaded. However, investigations and statistic analyses show that systems like this, due to technology of excavation very often work at reduced capacity. Most often the instantaneous cross section area of material on the belt is less than the rated value, and even no-load operation makes up a significant part of the system’s operational time.en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Београду, Електротехнички факултетsr
dc.rightsopenAccessen
dc.sourceУниверзитет у Београдуsr
dc.subjecttračni transporterisr
dc.subjectConveyorsen
dc.subjectmodelovanjesr
dc.subjectoptimalno upravljanjesr
dc.subjectelektromotorni pogoni sa regulisanom brzinomsr
dc.subjectasinhroni motorisr
dc.subjectanaliza i projektovanje sistemasr
dc.subjectrudarstvosr
dc.subjectupravljanje na bazi fazi logikesr
dc.subjectSCADA sistemisr
dc.subjectModelingen
dc.subjectOptimal controlen
dc.subjectAdjustable speed drivesen
dc.subjectInduction motorsen
dc.subjectSystem analysis and designen
dc.subjectMining industryen
dc.subjectFuzzy logic controlen
dc.subjectSCADA systemsen
dc.titleRazvoj algoritma za povećanje energetske efikasnosti sistema tračnih transportera na površinskim kopovimasr
dc.titleDevelopment of the algorithm for energy efficiency improvement of belt conveyor system on open pit mines.en
dc.typedoctoralThesis
dc.rights.licenseBY-NC-SA
dcterms.abstractЈефтенић, Борислав; Николић, Aлександар; Ђуровић, Жељко М.; Бебић, Милан; Игњатовић, Драган М.; Ристић, Лепосава; Развој алгоритма за повећање енергетске ефикасности система трачних транспортера на површинским коповима; Развој алгоритма за повећање енергетске ефикасности система трачних транспортера на површинским коповима;
dc.identifier.fulltexthttp://nardus.mpn.gov.rs/bitstream/id/4943/Disertacija.pdf


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