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master's thesis
Topologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu
2022. urn:nbn:hr:179:809237
Burić, Ivan
University of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
Department of Power Engineering

Cite this document

Burić, I. (2022). Topologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu (Master's thesis). Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:179:809237

Burić, Ivan. "Topologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:809237

Burić, Ivan. "Topologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:809237

Burić, I. (2022). 'Topologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu', Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 30 November 2024, https://urn.nsk.hr/urn:nbn:hr:179:809237

Burić I. Topologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu [Master's thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2022 [cited 2024 November 30] Available at: https://urn.nsk.hr/urn:nbn:hr:179:809237

I. Burić, "Topologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu", Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:179:809237

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Metadata
TitleTopologije jednofaznih poluvodičkih pretvarača za priključak fotonaponskih izvora na mrežu
Title (english)Topologies of single-phase power electronic converters for connection of photovoltaic sources to the grid
AuthorIvan Burić
MentorMateo Bašić https://orcid.org/0000-0003-3987-3792 (mentor)
GranterUniversity of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
(Department of Power Engineering)
Split
Defense date and country2022-09-23, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
U ovom diplomskom radu su najprije opisana osnovna svojstva PV ćelija. Spajanjem PV ćelija, najčešće u seriju, dobiva se PV modul, čiji vijek trajanja tipično iznosi 25 godina. Kod PV sustava je važno da su ćelije ispravno povezane kako bi zadovoljile naponske i strujne potrebe te da su zaštićene od atmosferskih utjecaja. Zatim je opisan idealni PV model sa strujnim izvorom i diodom kao i fotoelektrični efekt. Budući da su pretvarači energetske elektronike zaslužni za većinu gubitaka snage u PV sustavu, metode za poboljšanje učinkovitosti PV sustava su također pojašnjene. Osnovni zahtjevi za spajanje PV izvora na mrežu i zaštitu su regulirani međunarodnim standardima, pri čemu je zaštita od otočnog pogona tehnički možda najzahtjevnija budući da pretvarač mora odspojiti PV sustav s mreže u vrlo kratkom vremenu nakon isključivanja mreže. Topologije pretvarača za priključak PV modula na elektroenergetsku mrežu se sastoje od optimizatora snage i mikroizmjenjivača. Što se tiče string izmjenjivača, sve obrađene topologije kao polazišnu koriste mosnu topologiju (H-most) te predstavljaju njenu nadogradnju. Središnji izmjenjivači su objašnjeni pomoću NPC topologije. Objašnjene su i metode sinkronizacije s mrežom pomoću Fourierove analize te pomoću fazno zaključane petlje, koja daje informaciju o faznom kutu i amplitudi mrežnog napona. Prikazana je osnovna struktura fazno zaključane petlje, njen blok dijagram i odziv te su dani pripadajući ključni parametri.
Abstract (english)
In this thesis, the basic properties of PV cells are first described. By connecting PV cells, usually in series, a PV module is obtained, whose service life is typically 25 years. With PV systems, it is important that the cells are correctly connected to meet the voltage and current requirements and that they are protected from atmospheric influences. Then, an ideal PV model with a current source and a diode is described, as well as the PV effect. Since power electronic converters are responsible for most of the power losses in a PV system, methods for improving the efficiency of the PV system are also explained. The basic requirements for connecting PV sources to the grid and protection are regulated by international standards, with the anti-islanding being technically perhaps the most demanding feature since the inverter must disconnect the PV system from the grid in a very short time after the grid is turned off. Converter topologies for connecting a PV module to the power grid consist of a power optimizer and a microinverter. As for the string inverters, all covered topologies use the full-bridge topology (H-bridge) as a starting point and represent its upgrade. Central inverters are explained using the NPC topology. Methods of synchronization with the grid using Fourier analysis and using a phase-locked loop, which provides information on the phase angle and amplitude of the grid voltage, are also explained. The basic structure of the phase-locked loop, its block diagram, and response are shown, and the corresponding key parameters are given.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:179:809237
Study programmeTitle: Electrical Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike (magistar/magistra inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to authenticated users
Terms of useLicence In copyright icon
Created on2023-03-10 09:13:44