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

Volume

1

fYear

2006

fDate

6-8 Sept. 2006

Firstpage

287

Lastpage

292

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/UPEC.2006.367761

Filename

4218690