Title :
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
fDate :
4/1/2006 12:00:00 AM
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.871384
