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master's thesis
Simulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila
Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:179:770355
Križan, Filip
University of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
Department of Power Engineering

Institutional repository: Repository of the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture

Cite this document

Križan, F. (2022). Simulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila (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:179:770355

Križan, Filip. "Simulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:770355

Križan, Filip. "Simulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:179:770355

Križan, F. (2022). 'Simulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila', Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 28 March 2025, https://urn.nsk.hr/urn:nbn:hr:179:770355

Križan F. Simulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila [Master's thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2022 [cited 2025 March 28] Available at: https://urn.nsk.hr/urn:nbn:hr:179:770355

F. Križan, "Simulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila", 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:179:770355

Metadata
TitleSimulacijska analiza otočnog fotonaponskog sustava za napajanje jednofaznih izmjeničnih trošila
Title (english)Simulation analysis of an island photovoltaic system for supplying single-phase ac loads
AuthorFilip Križan
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 country2022-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Automation and Robotics
Abstract
U teorijskom dijelu rada – u drugom i trećem poglavlju – opisan je princip rada te su dane osnovne jednadžbe komponenti sustava (fotonaponskog izvora, baterija, transformatora, PI regulatora, uzlaznog istosmjernog pretvarača i jednofaznog mosnog izmjenjivača), uz pojašnjenje koncepta unipolarne i bipolarne PWM modulacije. Također su opisani i simulacijski modeli komponenti sustava izrađeni u MATLAB Simulinku. Prikazan je izbor parametara kao i pripadajući izbornici komponenti sustava. Četvrto... More poglavlje obuhvaća simulacijsku analizu i komentare dobivenih rezultata, i to krećući od jednostavnije konfiguracije sustava ka složenijoj, kako bi se bolje razumio utjecaj pojedinih komponenti i promjene pripadajućih parametara na ponašanje sustava. Najjednostavnija konfiguracija sastoji se od baterija, izmjenjivača i trošila. Unutar te konfiguracije objašnjeno je podešavanje parametara PI regulatora napona trošila te je određen minimalan broj baterija za linearno područje rada izmjenjivača. Prvotna konfiguracija nadograđena je s induktivnim filtrom, čiji je induktivitet određen metodom pokušaja i pogreške s ciljem da THD napona trošila bude manji od 5 %, i to za slučaj unipolarne i bipolarne PWM modulacije. Razmatrani sustav dalje je nadograđen s idealnim transformatorom, radi podizanja naponske razine izlaznog napona izmjenjivača. Konačna konfiguracija otočnog fotonaponskog sustava sastoji se od PV izvora, uzlaznog istosmjernog pretvarača, baterija, izmjenjivača, induktivnog filtra, transformatora i trošila. Nakon određivanja postavki reaktivnih komponenti uzlaznog pretvarača i podešavanja parametara PI regulatora napona PV izvora, analiziran je utjecaj promjene osunčanosti i temperature PV izvora te snage trošila na bilancu snage sustava (tj., na punjenje i pražnjenje baterija), uz fiksni napon PV-a. U konačnici je analiziran utjecaj SOC-a baterija na rad sustava. Less
Abstract (english)
In the theoretical part of the thesis – in the second and third chapters – the principle of operation is described, and the basic equations are of the system components (photovoltaic source, batteries, transformer, PI controller, boost DC-DC converter and single-phase bridge inverter), with clarification of the concept of unipolar and bipolar PWM modulation. Simulation models of system components in Simulink are also described. The choice of parameters is shown, as well as the associated... More block dialog boxes. The fourth chapter includes a simulation analysis and comments on the obtained results, starting from a simpler system configuration to a more complex one, in order to better understand the impact of individual components and changes in the associated parameters on the behavior of the system. The simplest configuration consists of batteries, an inverter, and a load. This configuration was used for the adjustment of the parameters of the load voltage PI controller and for the determination of the minimum number of batteries required for the linear operating range of the inverter. This configuration was then upgraded with an inductive filter, the inductance of which was determined by trial and error with the goal of reducing the THD of the load voltage to less than 5%, both in the case of unipolar and bipolar PWM modulation. The considered system was further upgraded with an ideal transformer, in order to raise the output voltage level of the inverter. The final configuration of the island PV system consists of a PV source, a boost DC-DC converter, batteries, an inverter, an inductive filter, a transformer, and a load. After determining the settings of the reactive components of the boost DC-DC converter and adjusting the parameters of the PI controller of the PV source voltage, the impact of changes in solar irradiation and temperature of the PV source and load power on the system power balance (i.e., on battery charging and discharging) was analyzed, with a fixed PV voltage. Finally, the impact of the batteries’ SOC on the system’s operation was analyzed. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:179:770355
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 on2023-05-24 07:59:05
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