<p>U disertaciji je predložen algoritam za proračun kratkih spojeva zasnovan na korelisanim intervalima. U savremenim distributivnim mrežama postoje različiti tipovi generatora koji proizvode električnu energiju iz energije obnovljivih izvora. Za takve generatore, kao i za potrošače, karakteristično je to što je njihova proizvodnja i potrošnja neizvesna. Predloženi algoritam u disertaciji uvažava te neizvesnosti, kao i korelacije između navedenih elemenata. Neizvesnosti su modelovane intervalima i direktno su uvažene u predloženom algoritmu za proračun kratkih spojeva. Algoritam je prvenstveno razvijen za proračun kratkih spojeva savremenih distributivnih mreža sa velikim brojem distribuiranih generatora i potrošača. NJime je moguće proračunavati režime sa kratkim spojevima distributivnih mreža velikih dimenzija, što je numerički verifikovano u disertaciji. Predloženim algoritmom se dobija režim distributivne mreže sa kratkim spojem koji je realističniji od režima dobijenih algoritmima sa determinističkim pristupom. Proračuni kao što su: koordinacija, podešenje i provera osetljivosti relejne zaštite, provera kapaciteta prekidača i osigurača, lokacija kvara itd. mogu na osnovu realističnijeg režima, dobijenog predloženim algoritmom, da daju kvalitetnije rezultate, što je numerički potvrđeno na primeru koordinacije prekostrujne zaštite</p> / <p>In this dissertation an algorithm for correlated intervals-based short-circuit calculation is<br />proposed. In modern distribution networks there are various types of generators that produce<br />electric energy from renewable energy resources. For these generators, as well as loads, uncertain<br />production and consumption is characteristic. The proposed algorithm in the dissertation deals<br />with above-mentioned uncertainties, as well as correlations among them. The uncertainties are<br />modeled with intervals and directly taken into account in the proposed algorithm for short-circuit<br />calculation. The algorithm is primarily developed for short-circuit calculation in modern<br />distribution networks with a great number of distributed generators and consumers. The proposed<br />algorithm enables calculation of short circuits states of large-scale distribution networks, which is<br />numerically verified in the dissertation. The proposed algorithm provides short circuit state of<br />distribution network which is more realistic than the one obtained with algorithms with<br />deterministic approach. Calculations such as: coordination, settings and sensitivity check of relay<br />protection, breaker and fuse capacity check, fault location, etc. can give better results, on the basis<br />of the more realistic state obtained by the proposed algorithm for short circuit calculation, which<br />is numerically confirmed by the example of coordination of overcurrent protection.</p>

Submitted by Luciana Ferreira (lucgeral@gmail.com) on 2015-10-16T14:58:29Z No. of bitstreams: 2 Dissertação - Ali Ahmad Smidi - 2015.pdf: 3816502 bytes, checksum: 2de9ac5a926f797906194c9463dfaeec (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2015-10-16T15:01:13Z (GMT) No. of bitstreams: 2 Dissertação - Ali Ahmad Smidi - 2015.pdf: 3816502 bytes, checksum: 2de9ac5a926f797906194c9463dfaeec (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2015-10-16T15:01:13Z (GMT). No. of bitstreams: 2 Dissertação - Ali Ahmad Smidi - 2015.pdf: 3816502 bytes, checksum: 2de9ac5a926f797906194c9463dfaeec (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2015-06-30 / In thisstudy,wesoughttopresentanintroductiontonumericaltechniquesaimedto optimize accessibleelementaryproblemstothestudentsofsecondandthirdyearofhigh school.TheoptimizationtechniquesdiscussedinthisworkweretheFibonacciandthe Golden Sectionmethods.Theworkpresentsanddoesmathematicaldescriptionofsuch techniques,fromaninitialknowledgeandbuildingmethodsinquestion.Inaddressinga real problem,weattemptedtointroducetheinterpretationandmathematicalmodeling of theproblemaswellasitssolutionsanalyticallyandnumerically,usingsoftwares simple touse.Inthisregard,itcanbestatedthatthepresentworkprovidesdidactical approachofmainunimodaloptimizationtechniquestoreduceuncertaintyinterval. / No presentetrabalho,buscou-seapresentarumainiciaçãoàstécnicasnuméricasvol- tadas paraaotimizaçãodeproblemaselementaresacessíveisaosalunosdosegundoe terceiro anodoensinomédio.AstécnicasdeotimizaçãotrabalhadasforamosMétodos de buscadeFibonacciedaSeçãoÁurea.Otrabalhoapresentaedetalhamatemati- camentetaistécnicas,alémdesemprepartirdeumconhecimentoinicialeconstruir os métodosemquestão.Aoabordarumproblemareal,buscou-seintroduzirain- terpretação eamodelagemmatemáticadoproblema,bemcomosuasolução,tanto analítica quantonumérica,utilizandováriossoftwarescomputacionaisdesimplesuti- lização. Nestesentido,pode-seafirmarqueopresentetrabalhotrazumaabordagem didática dasprincipaistécnicasdeotimizaçãounimodalporreduçãodeintervalosde incerteza.