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undergraduate thesis
Analiza jednofaznog mosnog autonomnog izmjenjivača
2021. urn:nbn:hr:190:045085
Pešut, Ivan
University of Rijeka
Faculty of Engineering
Department of Electric Power Systems
Section of Electrical Engines and Drives

Cite this document

Pešut, I. (2021). Analiza jednofaznog mosnog autonomnog izmjenjivača (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:045085

Pešut, Ivan. "Analiza jednofaznog mosnog autonomnog izmjenjivača." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2021. https://urn.nsk.hr/urn:nbn:hr:190:045085

Pešut, Ivan. "Analiza jednofaznog mosnog autonomnog izmjenjivača." Undergraduate thesis, University of Rijeka, Faculty of Engineering, 2021. https://urn.nsk.hr/urn:nbn:hr:190:045085

Pešut, I. (2021). 'Analiza jednofaznog mosnog autonomnog izmjenjivača', Undergraduate thesis, University of Rijeka, Faculty of Engineering, accessed 26 January 2025, https://urn.nsk.hr/urn:nbn:hr:190:045085

Pešut I. Analiza jednofaznog mosnog autonomnog izmjenjivača [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2021 [cited 2025 January 26] Available at: https://urn.nsk.hr/urn:nbn:hr:190:045085

I. Pešut, "Analiza jednofaznog mosnog autonomnog izmjenjivača", Undergraduate thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:190:045085

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Metadata
TitleAnaliza jednofaznog mosnog autonomnog izmjenjivača
Title (english)Single Phase H-bridge Inverter Analysis
AuthorIvan Pešut
MentorSaša Sladić (mentor)
Committee memberViktor Sučić (predsjednik povjerenstva)
Committee memberSaša Sladić (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Electric Power Systems)
(Section of Electrical Engines and Drives)
Rijeka
Defense date and country2021-09-14, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Electrical Engineering
Power Engineering
Abstract
Ovaj rad razmatra građu, način rada i različite načine upravljanja autonomnog mosnog izmjenjivača. Analizirano je pet načina upravljanja mosnim izmjenjivačem: pravokutna modulacija, modificirana pravokutna modulacija, bipolarna modulacija, unipolarna modulacija i jedna od tehnika kojom se uklanjaju više harmoničke komponente, SHE PWM. Pravokutna i modificirana pravokutna modulacija pokazale su se kao lošiji načini upravljanja zbog svog visokog THD-a i lošijeg izlaznog valnog oblika napona koji i nakon filtriranja nisko propusnim RC filtrom na izlazu izmjenjivača sadrži više harmonike. Bipolarna modulacija i SHE PWM su svojim rezultatima u simulacijama približno jednake, uz naravno dovoljno visok broj uklonjenih viših harmonika kod SHE PWM. Kao najbolji način upravljanja po rezultatima mjerenja i simulacija jest unipolarna modulacija, zbog svoje karakteristike da sadrži više harmonike tek na dvostruko višoj frekvenciji od frekvencije sklapanja poluvodičkih sklopki u mosnom izmjenjivaču, pa je nakon filtriranja na izlazu valni oblik napona gotovo jednak sinusoidi bez viših harmonika.
Abstract (english)
This paper covers the working principle of a single phase H-bridge inverter, its topology, and analysis of multiple control strategies: square wave modulation, modified square wave modulation, bipolar modulation, unipolar modulation, and control strategy to remove some of the higher harmonics known as SHE PWM. Square and modified square wave modulation are the worst of all considered control strategies, because of their higher THD and inability to remove higher order harmonics from their output voltage waveform after filtering through a low pass RC filter. Bipolar modulation and SHE PWM control strategies are almost equally good considering that in SHE PWM high enough number of higher harmonics are removed from the output waveform. From all the measurements and simulations, unipolar modulation proved to be the best, because higher order harmonics occur around two times the switching frequency so output voltage waveform after filtering is close to a perfect sinewave.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:045085
Study programmeTitle: Undergraduate University Study of Electrical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka elektrotehnike)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2021-10-26 09:15:53