Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom

Čavar, Mladen

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master's thesis

Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom

2015. urn:nbn:hr:168:717957

Čavar, Mladen

University of Zagreb
Faculty of Electrical Engineering and Computing

Cite this document

APA 6th Edition

Čavar, M. (2015). Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom (Master's thesis). Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing. Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:717957

MLA 8th Edition

Čavar, Mladen. "Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom." Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2015. https://urn.nsk.hr/urn:nbn:hr:168:717957

Chicago 17th Edition

Harvard

Čavar, M. (2015). 'Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom', Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 11 November 2024, https://urn.nsk.hr/urn:nbn:hr:168:717957

Vancouver

Čavar M. Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom [Master's thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2015 [cited 2024 November 11] Available at: https://urn.nsk.hr/urn:nbn:hr:168:717957

IEEE

M. Čavar, "Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom", Master's thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:168:717957

Cite this item: https://urn.nsk.hr/urn:nbn:hr:168:717957

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Metadata

Title	Izrada aplikacije za proračun ulazne struje pretvarača s diodnim ulazom
Title (english)	Application development for input current calculation of the inverter with a diode input
Author	Mladen Čavar
Mentor	Mario Vražić (mentor)
Committee member	Mario Vražić (predsjednik povjerenstva)
Committee member	Viktor Šunde (član povjerenstva)
Committee member	Igor Erceg (član povjerenstva)
Granter	University of Zagreb Faculty of Electrical Engineering and Computing Zagreb
Defense date and country	2015-07-10, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Electrical Engineering
Abstract	U radu su analizirani pretvarači napona i frekvencije sa šest pulsnim i dvanaest pulsnim diodnim ulazom. Posebna pozornost posvećena je proračunu ulazne struje i napona pretvarača napona i frekvencije. U tu svrhu kreirani su Matlab Simulink modeli šest pulsnih i dvanest pulsnih pretvarača napona i frekvencije. Analiziran je utjecaj ulaznih parametara simulacije, odnosno utjecaj: napona kratkog spoja transformatora, snage mreže, snage trošila, induktiviteta međukruga, komutacijskih induktiviteta i XR omjera na izlazne rezultate simulacije. Izlazni rezultati simulacije su valni oblik napona i struje na ulazu u pretvrač te njihova totalna harmička izobličenja. Utvrđeno je da najveći utjecaj na THD napona i struje imaju parametri napon kratkog spoja transformatora, snaga mreže i snaga trošila što je bilo i za očekivati. S druge strane najmanji utjecaj je imao XR omjer i induktivitet istosmjernog međukruga. Također je napravljena aplikacija za proračun ulazne struje i napona pretvarača sa šest pulsim i dvanaest pulsnim diodnim ulazom. Aplikacija omogućava jednostavnu promjenu ulaznih parametara simulacije, provedbu simulacije, prikaz rezultata simulacije kao i izvoz rezultata u Microsoft Excel tablicu. Aplikacija je razvijena unutar Matlab programskog paketa pomoću Matlab Guide toolbox-a.
Abstract (english)	This thesis analyses six and twelve pulse frequency converters with diode rectifier. The focus of the thesis was the calculation of the input current and voltage of the frequency converters. For that reason a Matlab Simulink models were developed for six and twelve pulse frequency converters. Influence of the variation of the input parameters on the output results was analyzed in the thesis. More precisely following input parameters were varied: 3-phase fault apparent power, power consumpton, DC bus inductance, commutating incductance, XR ratio and transformer short circuit voltage for twelve pulse frequency converters. It was determined that the 3-phase fault apparent power, power consumption and transformer short circuit voltage have the major influence on THD of voltage and current which was to expect. On the other hand the lowest impact on THD of voltage and current had XR ratio. Moreover, an application for the calculation of the input current and voltage waveforms for six and twelve pulse frequency converter was developed within this thesis. Application allows simple variation of the input parameters, conducting of the simulations and calculations, graphical representation of the calculation results and export of the calculation result into Micfosoft Excell. Application was developed within Matlab software using Matlab Guide Toolbox.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:168:717957
Study programme	Title: Electrical Engineering and Information Technology Study programme type: university Study level: graduate Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
Type of resource	Text
File origin	Born digital
Access conditions	Closed access
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Created on	2018-02-06 08:16:22