Postopek za določitev parametrov trifaznega transformatorja s pomočjo optimizacije

magistrsko delo

Ervin Slokan (Author), Gorazd Štumberger (Mentor)

Abstract

Magistrsko delo predstavlja pristop in način določitve parametrov trifaznega transformatorja s pomočjo optimizacije. Parametre trifaznega transformatorja navadno določimo z meritvijo ohmskih upornosti navitij, preizkusom prostega teka in preizkusom kratkega stika. Do iskanih parametrov pa lahko pridemo tudi po drugi poti, in sicer s pomočjo optimizacije. V tem primeru zapišemo matematični dinamični model transformatorja, s katerim skušamo opisati fizikalne pojave, bistvene za dinamično vedenje transformatorja. V naslednjem koraku – na podlagi časovnih potekov primarnih in sekundarnih napetosti in tokov, posnetih med vklopnim pojavom, prostim tekom in obratovanjem pod obremenitvijo – s pomočjo optimizacije poiščemo tiste vrednosti parametrov dinamičnega modela transformatorja, pri katerih je ujemanje med posnetimi in izračunanimi časovnimi odzivi izbranih spremenljivk najboljše.

Keywords

trifazni transformatorji;določitev parametrov;diferenčna evolucija;

Data

Language:	Slovenian
Year of publishing:	2016
Typology:	2.09 - Master's Thesis
Organization:	UM FERI - Faculty of Electrical Engineering and Computer Science
Publisher:	E. Slokan
UDC:	621.314(043.2)
COBISS:	19693590
Views:	1065
Downloads:	116
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Optimization based procedure for parameter determination of three phase transformer
Secondary abstract:	Master's degree thesis presents an approach and method of determining the parameters of the three-phase transformer using optimization. Usually, the parameters of the three-phase transformer are determined by measuring the ohmic resistance of its windings, open-circuit test and short-circuit test. The parameters can also be determined by using optimization. When choosing this approach, we first write the dynamic mathematical model of the transformer to describe the physical phenomena essential for the dynamic behavior of the transformer. In the next step, based on the time behavior of the primary and secondary voltages and currents recorded during the inrush phenomena, no-load and on-load operation, by using optimization we search for the parameter values of the dynamic model of the transformer with the best agreement between the recorded and calculated time response of the selected variables.
Secondary keywords:	three-phase transformer;parameter determination;differential evolution;
URN:	URN:SI:UM:
Type (COBISS):	Master's thesis
Thesis comment:	Univ. v Mariboru, Fak. za elektrotehniko, računalništvo in informatiko, Elektrotehnika
Pages:	XVIII, 85 f.
ID:	9151122