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master's thesis
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Voltage stability analysis
Hrvoje Mikulić (2017)
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
Metadata
TitleAnaliza naponske stabilnosti
AuthorHrvoje Mikulić
Mentor(s)Krešimir Fekete (thesis advisor)
Abstract
Zadatak ovog rada bio je prikazom P-V krivulja i Q-V krivulja odrediti stabilnost sustava, odnosno granice stabilnosti sustava. Kroz analiziranje regulacije napona, pobliže je opisan princip kompenzacije jalove snage u mreži. Definirana je stabilnost sustava, te je prikazana podjela stabilnosti ovisno o promatranoj veličini. Naponska je stabilnost kao tema ovog rada bila temeljito obrađena. Kroz teoretske primjere je prikazano definiranje naponske stabilnosti, odnosno nestabilnosti sustava. Nakon toga su na praktičnom primjeru 39 sabirničke mreže određivane granice stabilnosti sustava. Za analizu je korišten program DIgSILENT PowerFactory. Prvobitno je određena granica naponske stabilnosti u sustavu bez ikakve kompenzacije jalove snage. Nakon toga se kondenzatorskom baterijom na sabirnici s kritičnim naponom jalova snaga kompenzirala. Pri tome je promatran utjecaj kompenzacije na P-V i Q-V krivulje. Može se zaključiti da kompenzacijom jalove snage sustav postaje stabilniji.
Keywordsvoltage control voltage stability P-V curve Q-V curve
Parallel title (English)Voltage stability analysis
Committee MembersKrešimir Fekete (committee chairperson)
Predrag Marić (committee member)
Goran Knežević (committee member)
GranterJosip Juraj Strossmayer University of Osijek
Faculty of Electrical Engineering, Computer Science and Information Technology Osijek
Lower level organizational unitsDepartment of Power Engineering
Chair of Power Systems and Substations
PlaceOsijek
StateCroatia
Scientific field, discipline, subdisciplineTECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Study programme typeuniversity
Study levelgraduate
Study programmeGraduate University Study Programme in Electrical Engineering; specializations in: Communications and Informatics, Power Engineering
Study specializationPower Engineering
Academic title abbreviationmag.ing.el.
Genremaster's thesis
Language Croatian
Defense date2017-09-27
Parallel abstract (English)
The goal of this thesis was to determine system stability i.e. the limit of voltage stability by showing its P-V and Q-V curves. Trough the analysis of voltage control, compensation of reactive power is closely described. System stability is defined, and its classification is given depending on the variable that is being monitored. Voltage stability was thoroughly analyzed because its the main topic of this thesis. Trough some theoretical examples voltage stability definition was given i.e. voltage instability. DIgSILENT PowerFactory program was used for the analysis. Originally voltage stability limit was determined without any kind of reactive power compensation in the system. After that a capacitor bank was connected to the bus that showed the critical voltage. The influence of capacitor banks on the P-V and Q-V curves was monitored. It can be concluded that the system becomes more stable by compensating the reactive power.
Parallel keywords (Croatian)regulacija napona naponska stabilnost P-V krivulja Q-V krivulja
Resource typetext
Access conditionOpen access
Terms of usehttp://rightsstatements.org/vocab/InC/1.0/
URN:NBNhttps://urn.nsk.hr/urn:nbn:hr:200:724806