Two-dimensional analysis of three-phase transformer with load variation considering anisotropy and overlapped stacking

Author

Lee, Changhwan ; Jung, Hyun-Kyo

Author_Institution

Dept. of Electr. Eng., Seoul Nat. Univ., South Korea

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

693

Lastpage

696

Abstract

The design of a transformer should consider the analysis of the load variation. This paper describes the current wave calculation when the load condition varies for the newly proposed two-dimensional model in previous work, which can reflect the three-dimensional effects such as air gap and overlapped stacking. The analysis includes the Newton-Raphson method, considering two-directional (anisotropic) material properties. The methods are applied to the analysis of a three-phase transformer under load variations by using the finite element method with voltage source. The validity of the method is confirmed through the comparison between the numerical results and the experimental ones under no-load condition

Keywords

Newton-Raphson method; finite element analysis; magnetic anisotropy; power transformers; Newton-Raphson method; air gap; anisotropy; current wave; finite element method; load variation; nonlinearity; overlapped stacking; three-phase transformer; two-dimensional model; voltage source; Anisotropic magnetoresistance; Finite element methods; Load management; Magnetic analysis; Material properties; Newton method; Phase transformers; Power transformers; Stacking; Transformer cores;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877543

Filename

877543