Abstract
This paper presents a comparative analysis of some measures that can improve the reliability of medium-voltage (MV) distribution feeder. Strictly speaking, the impact of certain types of switching equipment installed on the feeder and possibilities of backup supply from the adjacent feeders were analyzed. For each analyzed case, equations for the calculation of System Average Interruption Duration Index and energy not delivered to the customers are given. The effects of certain measures are calculated for one real MV-feeder for radial supply to customers and in cases of possible backup supply to the customers. Installation locations of certain types of switching equipment for the given concept of energy supply are determined according to the criterion of minimum value of System Average Interruption Duration Index and according to the criterion of minimum value of energy not delivered to the customers.
Highlights
This paper presents a comparative analysis of some measures that can improve the reliability of medium-voltage (MV) distribution feeder
[7] „The Application of Reclosers on Future Distribution Systems“, ABB paper, Jan. 1999
Summary
Kratak sadržaj: U radu je prikazana uporedna analiza nekih mera kojima se poboljšava pouzdanost napajanja potrošača. Analizirani su uticaj ugradnje pojedinih tipova rasklopne opreme i mogućnosti dvostranog napajanja potrošača iz susednog izvoda. Mesta ugradnje pojedinih tipova rasklopne opreme za dati koncept napajanja određena su po kriterijumu minimalne vrednosti pokazatelja SAIDI i po kriterijumu minimalne vrednosti W. Deregulacija i poslovanje na tržišnim principima primoravaju isporučioce električne energije da maksimalno poboljšaju pouzdanost snabdevanja potrošača, u smislu snižavanja broja i trajanja prekida napajanja. U ovom radu biće analizirani uticaj vrste i lokacije rasklopne opreme i konfiguracije mreže na pouzdanost napajanja potrošača. Analiziraće se uticaj automatizovane rasklopne opreme (prekidači, rekloseri i sekcionalizatori) i ručno pokretanih rastavljača i mogućnosti dvostranog napajanja potrošača iz susednog izvoda. Pouzdanost napajanja potrošača biće merena preko sistemskog pokazatelja SAIDI i preko količine očekivane neisporučene električne energije W. N p - broj potrošača koji su ostali bez napajanja prilikom prekida p , Indeksom p obuhvataju se svi prekidi koji su se dogodili tokom jedne godine
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