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

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 pro...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2006-04, Vol.42 (4), p.855-858
Main Authors: Liang Guishu, Liang Guishu, Ran Huijuan, Ran Huijuan, Dong Huaying, Dong Huaying, Cui Xiang, Cui Xiang
Format: Article
Language:English
Subjects:
Computer simulation
Convolution
Cross-disciplinary physics: materials science
rheology
Electromagnetic radiation
Electromagnetic transients
Exact sciences and technology
Fittings
Gas insulated substation (GIS)
Gas insulation
Geographic Information Systems
Integral equations
Magnetism
Materials science
Mathematical analysis
Mathematical models
Other topics in materials science
Physics
Power system modeling
Power system transients
Recursive
recursive convolution
Substations
Surface fitting
surface-patch model
transient radiation field
vector fitting
Vectors (mathematics)
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Summary: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
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2006.871384