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scientific master's theses
Elektromehaničke oscilacije cijevnih hidroagregata
Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing, 2006. urn:nbn:hr:168:120660
Zebić, Željko
University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electric Machines, Drives and Automation

Institutional repository: FER Repository

Cite this document

Zebić, Ž. (2006). Elektromehaničke oscilacije cijevnih hidroagregata (Scientific master's theses). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:120660

Zebić, Željko. "Elektromehaničke oscilacije cijevnih hidroagregata." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2006. https://urn.nsk.hr/urn:nbn:hr:168:120660

Zebić, Željko. "Elektromehaničke oscilacije cijevnih hidroagregata." Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, 2006. https://urn.nsk.hr/urn:nbn:hr:168:120660

Zebić, Ž. (2006). 'Elektromehaničke oscilacije cijevnih hidroagregata', Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 21 June 2024, https://urn.nsk.hr/urn:nbn:hr:168:120660

Zebić Ž. Elektromehaničke oscilacije cijevnih hidroagregata [Scientific master's theses]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2006 [cited 2024 June 21] Available at: https://urn.nsk.hr/urn:nbn:hr:168:120660

Ž. Zebić, "Elektromehaničke oscilacije cijevnih hidroagregata", Scientific master's theses, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2006. Available at: https://urn.nsk.hr/urn:nbn:hr:168:120660

Metadata
TitleElektromehaničke oscilacije cijevnih hidroagregata
Title (english)Electromechanical Oscillation of Bulb Type Hydropower units
AuthorŽeljko Zebić
MentorZlatko Maljković (mentor)
Committee memberZlatko Maljković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Electrical Engineering and Computing
(Department of Electric Machines, Drives and Automation)
Zagreb
Defense date and country2006, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Electromechanical Engineering
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Automation and Robotics
Universal decimal classification
(UDC)		621.3 - Electrical engineering
Abstract
Cijevni hidroagregati su hidroagregati koji se potapaju u protočni trakt hidroelektrane. Ugrađuju se u elektranama kod kojih je prirodan pad vode premalen za okomite agregate. Obično su manjih snaga (do 100 MVA) i manjih brzina vrtnje (od 50 do 200 okretaja u minuti). Zbog manjeg ukupnog momenta tromosti, frekvencija vlastitih oscilacija cijevnih agregata, bliska je frekvenciji vrtnje. To može uzrokovati pojavu rezonancije. Upravo takva pojava uočljiva je kod cijevnih hidroagregata snaga 42 MVA u HE Dubrava. U radu je prikazan način izračunavanja frekvencije vlastitih oscilacija, rezultati mjerenja u HE Dubrava te dane usporedbe rezultata mjerenja i izvrenih proračuna za oba agregata.
Abstract (english)
The bulb-type horizontal-shaft hydro generators are enclosed electric machines placed straight in the water flow. They are usually used for power plants with small elevation drops, too small for utilization of vertical hydro generators. Typically, their rated power is up to 100 MVA and rated speed is 50 to 200 rpm. Due to lower inertia their natural frequency is close to rotation frequency, which can cause the resonance. This phenomenon is present in case of 42 MVA hydro generators in hydro power plant (HPP) Dubrava. Computational methods for determination of natural frequency and their verification by measurements, performed on both generators in HPP Dubrava, are presented in this thesis.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:168:120660
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 originBorn digital
Access conditionsClosed access
Terms of useLicence In copyright icon
Created on2020-03-26 10:34:41