Computation of 3-D Magnetic Leakage Field and Stray Losses in Large Power Transformer

Author

Zhu, Zhanxin ; Xie, Dexin ; Wang, Gang ; Zhang, Yanli ; Yan, Xiuke

Author_Institution

Sch. of Electr. Eng., Shenyang Univ. of Technol., Shenyang, China

Volume

48

Issue

2

fYear

2012

Firstpage

739

Lastpage

742

Abstract

A time-stepping finite element method combining analytical and numerical solutions for laminated-material homogenization is proposed to calculate 3-D magnetic leakage field and its structural parts stray losses in a 380 000 kVA/500 kV single-phase power transformer, and the high-order harmonics of field components can be considered. To verify the method and computation code, a supplementary model of Team Problem P21^C-M₁ is made. Measured and computed results to the model indicate the validity of the method proposed.

Keywords

finite element analysis; magnetic leakage; power system harmonics; power transformers; 3D magnetic leakage field; Team Problem P21C-M1; analytical solutions; high-order harmonics; laminated-material homogenization; large power transformer; numerical solutions; single-phase power transformer; stray losses; time-stepping finite element method; voltage 500 kV; Computational modeling; Eddy currents; Loss measurement; Magnetic noise; Magnetic shielding; Power transformers; Steel; Magnetic leakage field; stray loss; transformer;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2011.2177493

Filename

6136792