Calculation of transient radiation field from metallic enclosure of GIS based on surface-patch model

Author

Guishu, Liang ; Huijuan, Ran ; Huaying, Dong ; Xiang, Cui

Author_Institution

Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control, North China Electr. Power Univ., Baoding

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

855

Lastpage

858

Abstract

To improve the computation accuracy of the transient radiation fields in gas insulated substation (GIS), surface-patch model is proposed in this paper, and the method of vector fitting combining with recursive convolution is applied to substitute the method of fast Fourier transform (FFT) in the process of field calculation. The transient radiation fields of an actual 125-kV GIS are calculated to confirm the correctness of the model and the method. It is seemed from the simulation that the method of vector fitting combining with recursive convolution can overcome the conventional problems of FFT and reduces the computer memory and CPU time successfully, and the results from surface-patch model are more accurate than those from thin-line model

Keywords

electromagnetic wave interference; fast Fourier transforms; gas insulated substations; 125 kV; FFT; GIS; computation accuracy; fast Fourier transform; gas insulated substation; metallic enclosure; recursive convolution; surface-patch model; thin-line model; transient radiation field; vector fitting; Convolution; Electromagnetic radiation; Electromagnetic transients; Gas insulation; Geographic Information Systems; Integral equations; Power system modeling; Power system transients; Substations; Surface fitting; Gas insulated substation (GIS); recursive convolution; surface-patch model; transient radiation field; vector fitting;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871384

Filename

1608341