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scientific master's theses
Algoritmi za analize slučajnih ispada elemenata elektroenergetske mreže
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 1994. urn:nbn:hr:168:514575
Dizdarević, Nijaz
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Energy and Power Systems

Institutional repository: FER Repository

Cite this document

Dizdarević, N. (1994). Algoritmi za analize slučajnih ispada elemenata elektroenergetske mreže (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:514575

Dizdarević, Nijaz. "Algoritmi za analize slučajnih ispada elemenata elektroenergetske mreže." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 1994. https://urn.nsk.hr/urn:nbn:hr:168:514575

Dizdarević, Nijaz. "Algoritmi za analize slučajnih ispada elemenata elektroenergetske mreže." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 1994. https://urn.nsk.hr/urn:nbn:hr:168:514575

Dizdarević, N. (1994). 'Algoritmi za analize slučajnih ispada elemenata elektroenergetske mreže', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 14 January 2025, https://urn.nsk.hr/urn:nbn:hr:168:514575

Dizdarević N. Algoritmi za analize slučajnih ispada elemenata elektroenergetske mreže [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 1994 [cited 2025 January 14] Available at: https://urn.nsk.hr/urn:nbn:hr:168:514575

N. Dizdarević, "Algoritmi za analize slučajnih ispada elemenata elektroenergetske mreže", Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 1994. Available at: https://urn.nsk.hr/urn:nbn:hr:168:514575

Metadata
TitleAlgoritmi za analize slučajnih ispada elemenata elektroenergetske mreže
AuthorNijaz Dizdarević
MentorSrđan Babić (mentor)
Committee memberSrđan Babić (član povjerenstva)
Committee memberZdravko Hebel (član povjerenstva)
Committee memberPetar Javor (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Energy and Power Systems)
Zagreb
Defense date and country1994-02-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
Svrha sigurnosnih analiza elektroenergetskog sustava u stacionarnom stanju nalazi se u određivanju elemenata čiji ispadi uzrokuju narušavanje postavljenih ograničenja kao i u procjeni stupnja ozbiljnosti svakog od tih narušenja. Za veće sustave, čak i ako se razmatraju samo jednostruki ispadi i ako se koriste brze metode rješavanja, cjelovita izmjenična analiza svih slučajeva ispada zahtjeva dugotrajan postupak koji za primjenu u realnom vremenu nije prihvatljiv. Stoga se u svrhu oblikovanja liste kritičnih slučajeva ispada koriste brzi i aproksimativni postupci proračuna tokova snaga pomoću kojih se unaprijed u kratkom vremenu predviđaju kritični elementi čiji ispadi uzrokuju preopterećenja ili naponske neprilike, nakon čega se cjelovita izmjenična analiza izvodi samo nad najtežim slučajevima. Oblikovanje liste ispada izvodi se automatski korištenjem metoda rangiranja prema vrijednostima indeksa ozbiljnosti učinka ispada ili korištenjem metoda ukazivanja na kritične elemente pri čemu nije nužno proračunavati vrijednosti indeksa, jer je od značenja samo utvrđivanje postojanja ili nepostojanja narušenja ograničenja. Pri izvođenju algoritama od izuzetnog su značenja matematički postupci rada s rijetko popunjenim matricama te postupci ekvivalentiranja vanjskog dijela sustava čijim korištenjem se cijeli proces ubrzava i sažima skraćujući time ukupno vrijeme izvođenja.
Abstract (english)
The purpose of steady-state power system security analysis is to determine which contingencies cause component limit violations and also severity of any such violations. For large systems, even if only single component contingencies were considered, and even if fast solution methods were employed, full AC analysis of all cases could be prohibitively time consuming especially in real time mode. In order to avoid this computational burden contingency list is formed by approximate load flow solution methods which in contingency selection procedure estimate in advance contingencies more likely to cause limit Violations, following by full AC analysis only for the more severe cases. Contingency selection procedure is automated using ranking methods according to their performance index values or using screening methods which do not necessary need ranking by severity, because the most important issue within these methods is to identify cases which cause limit violations. These methods are enhanced by using sparse matrix techniques and local solution concept involving external equivalents in field of avoiding time consuming routines and reducing whole problem. Keywords
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:514575
Study programmeTitle: Postgraduate master programme in electrical engineering
Study programme type: university
Study level: postgraduate
Academic / professional title: Magistar znanosti elektrotehnike (Magistar znanosti elektrotehnike)
Type of resourceText
File originReformatted digital
Access conditionsClosed access
Terms of useLicence In copyright icon
Created on2019-03-20 08:20:41