28 KB257 KB28 KB199920252003Gubina, FerdinandPantoš, Milošletnik:49številka:58 stranistr. 267-274ISSN:0039-2480COBISSID:6470171URN:URN:NBN:SI:doc-0LWZGRCUenslAssociation of Mechanical Engineers and Technicians of Slovenia et al.Zveza strojnih inženirjev in tehnikov Slovenije et al.Strojniški vestnikenergetikafaktorji generacijsko distribucijskifaktorji linijskiinfrastructureinfrastrukturaomrežjaomrežja prenosnapretoksledenje pretokovsledljivostSledenje pretokov po energetskih omrežjih| Network flow tracing|In the developed world, people's demands are increasing rapidly. The main peoblem is to find appropriate ways of supplying the consumption centres with the goods that are produced in distant production units. The main criteria are the preservation of the quality of the transacted goods and the minimization of the transmission losses, and both of these are affected by economic aspects, such as minimising costs. In an attempt to solve these problems, mankind has built transmission networks, such as pipelines gas networks, heat networks and electrical power networks. At first sight the question of which producer supplies a particular consumer seems to be very trivial but nowadays, with rapid developments, transmission networks are becoming more sophisticated i.e.more complex, meshed and widespread. In this paper a new network-flow-tracing method is presented. The major goal of this new method is to define flow paths from producers to consumers across a network. In the past a few methods were already proposed; however, this method is based on a matrix calculation. Altrough it considers the transmission losses, it is still very simple to understand and also very fast. The new approach was tested on the New England test power system. Since all transmission systems have some common characteristics, knowledge from one engineering field could probably be used in other fieldsV razviti civilizaciji zadovoljujemo raznovrstne potrebe, vendar v ta namen potrebujemo čim bolj preprost, gospodaren in cenen dostop do dobrin. Primerna rešitev so prenosna omrežja, to so plinovod, naftovod, toplovod, električno omrežje, s katerim prenašamo snov ali energijo od proizvodnih virov do centrov porabe. Z razvojem, ki je posledica vse večjih zahtev, postajajo omrežja vse bolj prepletena. Če se vprašamo, katero pot skozi omrežje ubere neko blago iz določenega vira k določenemu porabniku, ugotovimo, da je težko neposredno odgovoriti na navidez popolnoma preprosto vprašanje. Prispevek tako predstavlja novo metodo za sledenje pretokov po omrežjih od proizvodnih virov do porabnikov. Dejansko prenosne poti ugotovimo na podlagi matričnega izračuna, ki je v primerjavi z znanimi rešitvami računsko preprostejši in z vidika potrebnega računskega časa manj zahteven. Ker je elektroenergetski sistem zapleteno omrežje, pri čemer je na voljo opazovanje pretokov električne energije smo preizkusili novo zamisel na elektroenergetskem testnem omrežju Nove Anglije, ZDA. Predvidevamo , da je novo metodo sledenja pretokov električne energije mogoče uporabiti tudi pri drugih omrežjih, ne glede na njihovo fizikalno različnost saj so osnovna načela delovanja omrežij skupnaTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Ljubljani, Fakulteta za strojništvo