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

• Published in: IEEE transactions on magnetics Vol. 42; no. 4; pp. 855 - 858
• Main Authors: Liang Guishu, Liang Guishu, Ran Huijuan, Ran Huijuan, Dong Huaying, Dong Huaying, Cui Xiang, Cui Xiang
• Format: Journal Article Conference Proceeding
• Language: English
• Published: New York, NY IEEE 01-04-2006; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• 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); transient radiation field; Calculus; surface-patch model; Gas insulated substation (GIS); Transients; Proceedings; Fittings; Modelling; vector fitting; Magnetic fields; Application; recursive convolution; Magnetic properties
• ISSN: 0018-9464; 1941-0069
• DOI: 10.1109/TMAG.2006.871384

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