Metodologija proračuna raspodjele unutarnjih prenapona duž namota transformatora primjenom koncentriranih parametara

Župan, Tomislav

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doctoral thesis

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Methodology for calculation of transformer windings'internal overvoltage distribution using lumped parameters

Tomislav Župan (2016)

University of Zagreb
Faculty of Electrical Engineering and Computing
Department of Electrical Engineering Fundamentals and Measurements

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APA 6th Edition

Župan, T. (2016). Metodologija proračuna raspodjele unutarnjih prenapona duž namota transformatora primjenom koncentriranih parametara (Doctoral thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:168:951322

MLA 8th Edition

Župan, Tomislav. "Metodologija proračuna raspodjele unutarnjih prenapona duž namota transformatora primjenom koncentriranih parametara." Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, 2016. https://urn.nsk.hr/urn:nbn:hr:168:951322

Chicago 17th Edition

Harvard

Župan, T. (2016). 'Metodologija proračuna raspodjele unutarnjih prenapona duž namota transformatora primjenom koncentriranih parametara', Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, accessed 18 June 2019, https://urn.nsk.hr/urn:nbn:hr:168:951322

Vancouver

Župan T. Metodologija proračuna raspodjele unutarnjih prenapona duž namota transformatora primjenom koncentriranih parametara [Doctoral thesis]. Zagreb: University of Zagreb, Faculty of Electrical Engineering and Computing; 2016 [cited 2019 June 18] Available at: https://urn.nsk.hr/urn:nbn:hr:168:951322

IEEE

T. Župan, "Metodologija proračuna raspodjele unutarnjih prenapona duž namota transformatora primjenom koncentriranih parametara", Doctoral thesis, University of Zagreb, Faculty of Electrical Engineering and Computing, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:168:951322

Cite this item: https://urn.nsk.hr/urn:nbn:hr:168:951322

Metadata

Title	Metodologija proračuna raspodjele unutarnjih prenapona duž namota transformatora primjenom koncentriranih parametara
Title (english)	Methodology for calculation of transformer windings'internal overvoltage distribution using lumped parameters
Author	Tomislav Župan
Mentor	Željko Štih (mentor)
Committee member	Željko Štih (član povjerenstva)
Granter	University of Zagreb Faculty of Electrical Engineering and Computing (Department of Electrical Engineering Fundamentals and Measurements) Zagreb
Defense date and country	2016, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Electrical Engineering Electromechanical Engineering
Universal decimal classification (UDC)	621.3 APPLIED SCIENCES. MEDICINE. TECHNOLOGY Electrical engineering
Abstract	Zbog svoje važnosti za elektroenergetski sustav, transformatori se projektiraju kako bi, uz stacionarne, bili u mogućnosti izdržati i situacije mogućih prijelaznih stanja u električnoj mreži. Zbog toga postoji potreba za kvalitetnim visokofrekvencijskim modelom namota transformatora. Ova disertacija se bavi izradom nadomjesnog visokofrekvencijskog modela namota transformatora pomoću metode koncentriranih parametara. Prikazana metodologija se zasniva na internom modelu te nastoji predvidjeti raspodjelu napona duž namota uslijed brzorastućih prijelaznih pojava. Svi parametri modela su određeni korištenjem numeričkih metoda zasnovanih na metodi momenata. Nadomjesni model namota je analiziran u vremenskoj i u frekvencijskoj domeni. Prikazana je metodologija određivanja raspodjele napona duž namota te proračun rezonantnih frekvencija namota transformatora. Model je verificiran mjerenjima na posebno konstruiranom modelu transformatora. Utvrđena je zadovoljavajuća točnost prikazanog nadomjesnog modela te mogućnost određivanja rezonantnih frekvencija namota i naponskih naprezanja duž namota.
Abstract (english)	Transformers are vital to every electric power system. Due to various switching operations and atmospheric discharges, they are exposed to numerous overvoltages and have to be designed to correctly operate in those circumstances. Therefore, adequate mathematical models are needed to study their behavior at voltages with high frequency components. This dissertation presents the methodology for obtaining the high frequency model of transformer windings. The model is of internal type and is based on lumped parameters. All the parameter values are obtained using numerical methods based on the method of moments. Obtained transformer model is analyzed both in time and in frequency domain. The winding’s internal overvoltage distribution and the winding’s resonant frequency analysis is presented. Experimental verification of the developed numerical model has been done on a specially constructed transformer. Measurements are in a good agreement with calculated results.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:168:951322
Study programme	Title: Elektrotehnika i računarstvo Study programme type: sveučilišni Study level: poslijediplomski doktorski Academic / professional title: Doktor znanosti elektrotehnike i računarstva (Doktor znanosti elektrotehnike i računarstva)
Type of resource	text
Extent	144 str. ; 30 cm.
File origin	Born digital
Access conditions	Closed access
Terms of use
Repository	FER Repository
Created on	2019-04-11 14:20:57