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doctoral thesis
DIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM
2014. urn:nbn:hr:200:904233
Kaluđer, Slaven
Josip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Department of Power Engineering
Chair of Power Systems and Substations

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Kaluđer, S. (2014). DIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM (Doctoral thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek. Retrieved from https://urn.nsk.hr/urn:nbn:hr:200:904233

Kaluđer, Slaven. "DIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM." Doctoral thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2014. https://urn.nsk.hr/urn:nbn:hr:200:904233

Kaluđer, Slaven. "DIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM." Doctoral thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, 2014. https://urn.nsk.hr/urn:nbn:hr:200:904233

Kaluđer, S. (2014). 'DIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM', Doctoral thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:200:904233

Kaluđer S. DIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM [Doctoral thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek; 2014 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:200:904233

S. Kaluđer, "DIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM", Doctoral thesis, Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Osijek, 2014. Available at: https://urn.nsk.hr/urn:nbn:hr:200:904233

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Metadata
TitleDIJAGNOZA KVARA U DISTRIBUTIVNOJ MREŢI POMOĆU SUSTAVA S NEIZRAZITOM LOGIKOM
Title (english)Fault diagnosis in distribution network using fuzzy logic system
AuthorSlaven Kaluđer
MentorLajos Jozsa (mentor)
Committee memberSrete Nikolovski (predsjednik povjerenstva)
Committee memberPredrag Marić (član povjerenstva)
Committee memberMarinko Barukčić (član povjerenstva)
Committee memberIvica Pavić (član povjerenstva)
MBZ: 153735
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
(Department of Power Engineering)
(Chair of Power Systems and Substations)
Osijek
Defense date and country2014-11-18, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
U doktorskoj disertaciji razvijen je neizraziti ekspertni sustav (off-line) za dijagnozu kvara u distributivnoj mreţi na bazi strukturalnog i funkcionalnog djelovanja releja i prekidača. Prikazan je novi način modeliranja funkcionalnog djelovanja releja i prekidača koji je opisan pomoću neizrazite logike. Neizrazita logika (više-vrijednosna logika) je metoda koja se bavi modeliranjem nepreciznosti, nesigurnosti kod donošenja odluka. Poboljšava i povećava potencijal kod modeliranja ljudskog razmišljanja koje koristi lingvističke varijable. Neizrazita logika (teorija) je u suprotnosti s klasičnom teorijom vjerojatnosti, jer je prva deterministička, a druga stohastička u naravi. Teorija vjerojatnosti se koristi bi-vrijednosnom logikom (0 ili 1), dok neizrazita teorija moţe poprimiti bilo koju vrijednost izmeĎu 0 i 1. Neizrazita logika nudi jednostavan pristup modeliranju nejasnih, neprecizni, izobličeni i nepostojećih ulaznih informacija. Neizraziti dijagnostički sustav kao ulazne podatke koristi statuse releja i prekidača te njihove vremenske oznake. Dijagnostički sustav iz ogromnog broja alarma postavlja, logički organizira i kvantificira dijagnoze. Razvijeni dijagnostički sustav za dijagnozu kvara uspješno dijagnosticira djelovanje, krivo djelovanje i otkazivanje djelovanja releja i prekidača. TakoĎer ima mogućnost lociranja (identificiranja) kvara te njegovog kvantificiranja na bazi hibridnog operatora unije koji je iskazan kao aritmetička sredina Hamackerovog i Schweizerovog operatora unije. Pored navedenog uspješno se nosi i s kvarovima telemetrije koristeći novi način modeliranja nepostojećih informacija pomoću linearne funkcije pripadnost u odnosu na vrijeme.
Abstract (english)
In this doctoral dissertation was developed off-line fuzzy expert system for fault diagnosis in distribution network based on the structural and functional operation of relays and circuit breakers. Functional operation of relays and circuit breakers is described by fuzzy logic as a new way of modeling. Fuzzy logic (multiple-value logic) is a method that deals with the modeling of imprecision, uncertainty in decision-making process. It improves and increases the potential in the modeling of human thinking which uses linguistic variables. Fuzzy logic (theory) is in contrast with the classical theory of probability, since the first is deterministic and the other is stochastic in nature. Probability theory uses bi-value logic (0 or 1), while fuzzy theory can take any value between 0 and 1. Fuzzy logic offers a simple approach for modeling vague, inaccurate, distorted and missing informations. Imput information of fuzzy diagnostic system are the status of relays and circuit breakers and their time stamps. Diagnostic system logically organize and quantifie diagnosis from the huge alarm streams.Operation, false operation and failure of operation for circuit brakers and realays can be diagnosed with the developed diagnostic system. Fault location (identification) is quantified with hybrid union operator which is discribed as the arithmetic mean of Hamackers and Schweizers operator. New method of modeling the missng information as linear membership functions with respect to time is used for dealing with failures of telemetry.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:200:904233
Promotion2016-04-09
Study programmeTitle: Postgraduate doctoral study programme; branch Power Engineering and Communications, branch Informatics
Course: branch Power Engineering and Communications
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, područje tehničkih znanosti, polje elektrotehnika (doktor/doktorica znanosti, područje tehničkih znanosti, polje elektrotehnika)
Type of resourceText
Extent160
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2016-04-26 10:01:02