20.500.12556/DKUM-82657 Analiza zgodovinsko odvisnih histereznih modelov mehkomagnetnih materialov magistrsko delo Analysis of history-dependent hysteresis models of soft magnetic materials V magistrskem delu je izvedena analiza zgodovinsko odvisnih histereznih modelov. Sodobni električni stroji in naprave so pogosto napajani s pretvorniki močnostne elektronike, ki povzročajo zapletene poteke magnetnih veličin v feromagnetnih jedrih. Trenutno uveljavljeni modeli so v večini primerov zgodovinsko neodvisni in niso zmožni pravilno opisati oblike malih zank znotraj limitne statične histerezne zanke, kar posledično privede do napačne ocene energijskih izgub v ciklu magnetenja. Za izboljšanje metod načrtovanja in dvig izkoristka sodobnih naprav je posledično potrebno razviti in uporabljati bolj točne modele, ki upoštevajo zgodovino magnetenja in ustrezno opišejo magnetilne krivulje tudi v primeru zapletenih neharmoničnih vzbujanj. Za izvedbo analize smo implementirali Zirka-Morozov in Loss-Surface histerezna modela, ki spadata v skupino fenomenoloških zgodovinsko odvisnih histereznih modelov. Analizo smo izvedli simulacijsko s programskim paketom Matlab/Simulink. Za oba modela smo na osnovi izvedenih analiz ugotovili, da upoštevata Madelungova pravila za zgradbo magnetilnih krivulj znotraj limitne statične histerezne zanke in zelo dobro opisujeta poljubne statične magnetilne pojave. Modela smo primerjali tudi med seboj in izpostavili prednosti in slabosti vsakega modela. In the master's thesis we performed an analysis of history-dependent hysteresis models. Contemporary electrical machines are often powered by power electronic converters, which cause complex waveforms of magnetic quantities in the ferromagnetic cores of those machines. Currently established hysteresis models are in most cases history independent and are not able to correctly describe the shape of minor loops within the major hysteresis loop, which leads to an incorrect calculation of energy losses in the magnetization cycle. To improve design methods and increase the efficiency of modern electrical devices, it is consequently necessary to develop and use more accurate hysteresis models that consider the magnetization history and adequately describe the magnetization even in the case of complex non-harmonic excitations. To perform the analysis, we implemented the Zirka Moroz and Loss-Surface hysteresis models, which are classified as phenomenological history-dependent hysteresis models. The analysis was performed by simulation using the Matlab/Simulink software package. For both models, based on the performed analyses, we concluded that they comply with Madelung's rules when generating magnetization curves within the major loop and describe any static magnetization phenomena very well. We also compared the models with each other and highlighted the advantages and disadvantages of individual model. mehkomagnetni materiali histerezne lastnosti zgodovinsko odvisno magnetenje modeliranje poljubna oblika vzbujanja soft magnetic material hysteresis property history-dependent magnetization modelling arbitrary excitation waveform true true false [E. Rahmanović] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2022-08-29 13:13:26 2022-10-21 08:39:51 2022-12-01 03:06:37 0000-00-00 00:00:00 2022 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (XXII, 111 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 537.623:621.318(043.2) 131732739 MAG_Rahmanovic_Ermin_2022.pdf MAG_Rahmanovic_Ermin_2022.pdf 1 B4D0FA46764203D90B996425F0AC5DCA e35e5c65847934ccabf42420b4e4f89be775a00612e7ccd16bf7da8d2b8177a7 f9c698cc-2dda-11ed-8d84-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=161928 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0