Title :
A Comparison Between Different Methods of Modeling Hysteresis Loop in Three-Phase Three-Legged Transformers
Author :
Mosayyebi, S.R. ; Jalilian, A.
Author_Institution :
Iran Univ. of Sci. & Technol., Tehran
Abstract :
Regarding the transformer modeling, many numerical methods have been applied to simulate the nonlinearity of transformer core. In this paper the nonlinear model of a three-phase three-legged transformer has been implemented in MATLAB environment. The comparison between the MATLAB computed results and the results from source paper confirms the correct implementation of the model. Also hysteresis loop of this transformer is modeled by different methods and in each method the magnetizing current THD and maximum of flux and current are calculated for delta and Y-G connections. Meanwhile the behavior of hysteresis loop in different frequencies and voltage levels have been studied using simulation results
Keywords :
mathematics computing; power engineering computing; power transformers; MATLAB environment; Y-G connection; hysteresis loop; magnetizing current; nonlinear model; three-phase three-legged transformer; Frequency locked loops; Leg; MATLAB; Magnetic analysis; Magnetic flux; Magnetic hysteresis; Mathematical model; Piecewise linear techniques; Saturation magnetization; Transformer cores; Hysteresis Loop; Magnetizing Current; Saturation Curve; Transformer Modeling;
Conference_Titel :
Universities Power Engineering Conference, 2006. UPEC '06. Proceedings of the 41st International
Conference_Location :
Newcastle upon Tyne
Print_ISBN :
978-186135-342-9
DOI :
10.1109/UPEC.2006.367761
