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Title:Numerični izračun kratkostične napetosti v energetskem transformatorju
Authors:ID Steinacher, Alen (Author)
ID Trbušić, Mislav (Mentor) More about this mentor... New window
ID Jesenik, Marko (Co-mentor)
Files:.pdf VS_Steinacher_Alen_2022.pdf (4,42 MB)
MD5: D62E11D93FA89EFAFDE3C7EB429871F0
 
Language:Slovenian
Work type:Bachelor thesis/paper (mb11)
Typology:2.11 - Undergraduate Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:V prvem delu diplomskega dela smo opredelili trifazne energetske transformatorje, opisali generatorski, regulacijski in transformator s tremi navitji, opisali problematiko kratkostične napetosti ter podali analitične formule za njen izračun. V osrednjem delu naloge smo se osredotočili na modeliranje transformatorja v programskem okolju FEMM in izračun kratkostične napetosti preko magnetne energije v transformatorskem oknu. Izračuni so bili izvedeni za tri tipe transformatorjev, in sicer za generatorski transformator ali blok transformator, za dvonaviti regulacijski transformator in tronaviti regulacijski transformator. V zadnjem delu naloge smo primerjali numerično dobljene rezultate s tistimi, ki smo jih dobili preko analitične formule. Na podlagi primerjave smo zapisali sklep o ustreznosti uporabe numeričnih pristopov pri izračunu kratkostične napetosti energetskih transformatorjev.
Keywords:energetski transformator, kratkostična napetost, razsipano polje, metoda končnih elementov (MKE)
Year of publishing:2022
Publisher:[A. Steinacher]
Source:Maribor
PID:20.500.12556/DKUM-82810 New window
UDC:621.314.222.064.1(043.2)
COBISS.SI-ID:140374531 New window
Publication date in DKUM:13.01.2023
Views:150
Downloads:19
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FERI
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:04.09.2022

Secondary language

Language:English
Title:Numerical calcultation of short circuit voltage in power transformer
Abstract:In the first part of the thesis, we defined three-phase power transformers, described the generator transformer, the control transformer and the transformer with three windings, described the short-circuit voltage problem and gave analytical formulas for its calculation. In the main part of the thesis we focused on modelling the transformer in the FEMM software environment and calculating the short-circuit voltage via magnetic energy in the transformer window. The calculations were performed for three types of transformers, namely a generator transformer or block transformer, a two-winding control transformer and a three-winding control transformer. In the last part of the thesis, the results obtained numerically were compared with those obtained through an analytical formula. On the basis of the comparison, we wrote a conclusion on the appropriateness of using numerical approaches in the calculation of short-circuit voltage of power transformers.
Keywords:power transformer, short circuit voltage, stray flux, finite element method (FEM)


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