20.500.12556/DKUM-94986 Izpeljava, programska implementacija in eksperimentalna validacija matematičnega modela energetskega transformatorja magistrsko delo Derivation, software implementation and experimental validation of mathematical model of a power transformer Magistrsko delo obravnava matematično modeliranje trifaznega energetskega transformatorja z diferencialnimi enačbami s skoncentriranimi parametri. Cilj naloge je bil izpeljava in programska implementacija matematičnega modela, ki upošteva nelinearne lastnosti magnetnega jedra. Namenjen je analizi stacionarnega obratovanja in prehodnih pojavov. Model je bil implementiran v odprtokodnem programskem jeziku Python in validiran z uporabo programskega orodja DIgSILENT PowerFactory ter z meritvami na laboratorijskem transformatorju. Rezultati potrjujejo delovanje in uporabnost modela za stacionarne in dinamične simulacije energetskih transformatorjev, ki opisujejo delovanje transformatorja, hkrati pa razkrivajo omejitve pri upoštevanju nelinearnosti magnetnega jedra ter nakazujejo možnosti za nadaljnji razvoj. This master’s thesis focuses on the mathematical modelling of a three-phase power transformer using a lumped-parameter model in the form of nonlinear ordinary differential equations. The objective of the thesis is the derivation and software implementation of a mathematical model that accounts for the nonlinear properties of the magnetic core. The model is intended for the analysis of steady-state operation and transient phenomena. It was implemented in the open-source programming language Python and validated using the DIgSILENT PowerFactory software as well as measurements on a laboratory transformer. The results confirm the performance and applicability of the implemented model for steady-state and dynamic simulations describing transformer behavior, while also revealing limitations in the consideration of core nonlinearities and suggesting possibilities for further development. trifazni transformator matematično modeliranje vklopni pojav three-phase transformer mathematical modelling inrush phenomenon true true false [S. Ugrinčić] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2025-09-01 09:14:59 2025-09-23 13:31:34 2025-12-05 03:07:07 0000-00-00 00:00:00 2025 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XII, 81 str.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.314.2(043.2) 260021251 MAG_Ugrincic_Stela_2025.pdf MAG_Ugrincic_Stela_2025.pdf 1 53677FFCD808FCED8F4E958570C14DF7 1ebb8203fe3b1c73a96a04e5a892ecc05eb45c14ae90cc1ae10e61b042399bd4 5898efbd-96f5-11f0-b110-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=198906 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0