prikaz prve stranice dokumenta Procjena stabilnosti sinkronog generatora u stvarnom vremenu
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doctoral thesis
Procjena stabilnosti sinkronog generatora u stvarnom vremenu
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2009. urn:nbn:hr:168:646295
Bulić, Neven
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electric Machines, Drives and Automation

Cite this document

Bulić, N. (2009). Procjena stabilnosti sinkronog generatora u stvarnom vremenu (Doctoral thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:646295

Bulić, Neven. "Procjena stabilnosti sinkronog generatora u stvarnom vremenu." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2009. https://urn.nsk.hr/urn:nbn:hr:168:646295

Bulić, Neven. "Procjena stabilnosti sinkronog generatora u stvarnom vremenu." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2009. https://urn.nsk.hr/urn:nbn:hr:168:646295

Bulić, N. (2009). 'Procjena stabilnosti sinkronog generatora u stvarnom vremenu', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 18 April 2024, https://urn.nsk.hr/urn:nbn:hr:168:646295

Bulić N. Procjena stabilnosti sinkronog generatora u stvarnom vremenu [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2009 [cited 2024 April 18] Available at: https://urn.nsk.hr/urn:nbn:hr:168:646295

N. Bulić, "Procjena stabilnosti sinkronog generatora u stvarnom vremenu", Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2009. Available at: https://urn.nsk.hr/urn:nbn:hr:168:646295

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Metadata
TitleProcjena stabilnosti sinkronog generatora u stvarnom vremenu
Title (english)Real time stability estimation of synchronous generator
AuthorNeven Bulić
MentorZlatko Maljković (mentor)
MentorGorislav Erceg (komentor)
Committee memberSejid Tešnjak (predsjednik povjerenstva)
Committee memberZlatko Maljković (član povjerenstva)
Committee memberGorislav Erceg (član povjerenstva)
Committee memberIvan Gašparac (član povjerenstva)
Committee memberVesna Županović (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Electric Machines, Drives and Automation)
Zagreb
Defense date and country2009-01-09, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
Pod pojmom dinamičke stabilnosti smatra se sposobnost prigušenja elektromehaničkih oscilacija, te se smatra da sinkroni generator počinje gubiti stabilnost s gubitkom prigušenja elektromehaničkih oscilacija. Korišteni pristup je sljedeći: određivanje matrice sustava iz mjerenih veličina te izračun svojstvenih vrijednosti matrice sustava. Devijacija kuta opterećenja, devijacija brzine i devijacija struja uzbude su mjerene varijable stanja koje su se koristile kod identifikacije matrice sustava trećeg reda rekurzivnom metodom najmanjih kvadrata. Na temelju obavljene identifikacije određene su svojstvene vrijednosti sinkronog generatora te je iz njih određen karakter elektromehaničkih oscilacija u radnoj točki te u okolišu bliskom radnoj točki. Promjenom radnih točaka sinkronog generatora, promjenom parametara sustava regulacije uzbude sinkronog generatora mijenja se i karakter elektromehaničkih oscilacija te samim tim i svojstvenih vrijednosti sustava. Simulacijski se je ispitalo djelovanje identifikacijskog algoritma i algoritma za izračun svojstvenih vrijednosti. Predloženi algoritm je implementiran u digitalni sustav upravljanja uzbudom te ispitan na sinkronom generatoru snage 83 kVA koji je preko prijenosnog voda i transformatora spojen na elektroenergetski sustav. Svi algoritmi za implementaciju u digitalni sustav upravljanja su napisani u programskom jeziku C. Eksperimentom je potvrđeno ispravno djelovanje algoritma za procjenu stabilnosti.
Abstract (english)
Term of dynamical stability means the capability of damping small signal electromechanically oscillation. Loss of stability is practically loss of damping. Problem of stability estimation is treated on following way first system matrix is estimated from measured signal and eigenvalues are determined from system matrix. Eigenvalues determine the behavior of system. Measured signals for recursive least square identification processes are load angle deviation, deviation of speed and excitation current. After the system matrix is identified eigenvalue are determined and the nature of oscillation is known in current operation point and in its nearest area. Changing the operating points the nature of oscillation is changing and consequence of that is change of eigenvalue. Algorithm for stability estimation is simulated on computer and prepared for implementation in digital excitation control system. Algorithm is implemented in digital excitation control system and tested on 83 kVA synchronous generator connected over reactance on AC network. Complete algorithm is written in C language with usage of explicit instead recursive algorithm for eigenvalue determination. Experimental results shows that algorithm for stability estimation correctly determine stability limit.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:646295
ProjectNumber: 036-0361616-1617
Title: Revitalizacija i pogon hidrogeneratora
Leader: Zlatko Maljković
Jurisdiction: Croatia
Funder: MZOS
Funding stream: ZP
ProjectNumber: 036-0361621-1626
Title: Upravljanje sinkronim agregatom s obzirom na zahtjeve elektroenergetskog sustava
Leader: Gorislav Erceg
Jurisdiction: Croatia
Funder: MZOS
Funding stream: ZP
Study programmeTitle: Doctoral study programme "Electrical Engineering and Computing"
Study programme type: university
Study level: postgraduate
Academic / professional title: doktor/doktorica znanosti, po-dručje tehničkih znanosti (doktor/doktorica znanosti, po-dručje tehničkih znanosti)
Catalog URLhttp://lib.fer.hr/cgi-bin/koha/opac-detail.pl?biblionumber=33271
Type of resourceText
Extent212 str.
File originBorn digital
Access conditionsClosed access
Terms of useLicence In copyright icon
RepositoryFER Repository
Created on2020-03-19 11:30:37

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