Simulation study of the impact of L-shaped and T-shaped branch of GIS on the propagation of ultrahigh frequency electromagnetic wave

• Autorzy: Yong Q. , Jiang W. , Haifeng Y. , Gehao S. , Xiuchen J.

Warianty tytułu

PL

Badania symulacyjne wpływu gałęzi typu L i T w aparaturze GIS na propagację fali elektromagnetycznej o ultra-wysokiej częstotliwości

• Języki publikacji: EN

Abstrakty

EN

This article simulates the propagation of ultrahigh frequency (UHF) electromagnetic wave excited by partial discharge in L-shaped and Tshaped branch of GIS using finite-difference time-domain (FDTD) algorithm. We examine the effect of L-shaped and T-shaped branch of GIS on time domain waveform and frequency components of UHF electromagnetic wave. It is found that L-shaped branch of GIS significantly attenuates the electric field strength of UHF electromagnetic wave propagating in GIS cavity. Electromagnetic waves attenuated by L-shaped branch mainly have the frequency of 300MHz-2000MHz or above 3000MHz. Electric field strength of some frequency components is enhanced. When propagating in Tshaped branch, the frequency components of electromagnetic wave are more significantly attenuated along the bending path than along the straight path.

PL

W artykule opisano wyniki symulacji propagacji fali elektromagnetycznej o ultra-wysokiej częstotliwości, wywołanej wyładowaniem niezupełnym w gałęzi typu L i T aparatury rozdzielczej GIS, z wykorzystaniem algorytmu różnic skończonych w dziedzinie czasu (FDTD). Stwierdzono, że gałąź L znacząco osłabia siłę wnikania pola elektrycznego fali elektromagnetycznej UHF w GIS. W gałęzi T, częstotliwości składowe są bardziej tłumione w zagięciach charakterystyki niż na odcinkach prostych.

Słowa kluczowe

EN

GIS; electromagnetic wave; FDTD

PL

GIS; UHF; fala elektromagnetyczna; FDTD

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 1a
• Strony: 223--226
• Opis fizyczny: Bibliogr. 10 poz., rys., wykr.

Twórcy

autor

Yong Q.

• Department of Electrical Engineering, Shanghai Jiao Tong University

autor

Jiang W.

• Chongqing Electric Power Corporation

autor

Haifeng Y.

• Department of Electrical Engineering, Shanghai Jiao Tong University

autor

Gehao S.

• Department of Electrical Engineering, Shanghai Jiao Tong University

autor

Xiuchen J.

• Department of Electrical Engineering, Shanghai Jiao Tong University

Bibliografia

• [1] SAKAKIBARA T, MURASE H, HAGENOMORI E, et al. Study of propagation phenomena of partial discharge pulses in gas insulated substation[J]. IEEE Trans on Power Delivery, 1998, 13(3): 768 – 776
• [2] HUANG Xingquan, KANG Shuying, LI Hongzhi. Research on Ultra-High-Frequency Method for Detection of Partial Discharge in GIS[J]. Power System Technology，2006.4，30(7):37-40， 63(in Chinese)
• [3] LIU Jun-hua, YAO Ming, HUANG Chengjun, et al. Characteristics of PD EM-wave Modes in GIS[J]. High Voltage Engineering，2009，35(7):1654-1660(in Chinese)
• [4] HOSHINO T, KATO K, HAYAKAWA N, et al. A Novel Technique For Detecting Electromagnetic Wave Caused by Partial Discharge in GIS[J]. IEEE Trans on Power Delivery, 2001.16(4): 545-551
• [5] MEIJER S, SMIT J J. UHF Defect Evaluation in Gas Insulated Equipment[J]. IEEE Trans on Dielectrics and Electrical Insulation, 2005. 12(2): 285-296
• [6] HOSHINO T, KOYOMA H, MARUYAMA S, et al. Comparison of Sensitivity Between UHF Method and IEC 60270 for Onsite Calibration in Various GIS[J]. IEEE Trans on Power Delivery, 2006, 21(4):1948 – 1953
• [7] QIAN Yong, HUANG Cheng-jun, JIANG Xiu-chen, et al. Present situation and prospect of ultrahigh frequency method based research on-line monitoring of partial discharge in gas insulated switchgear[J].Power System Technology,2005,29(1):159- 164(in Chinese)
• [8] LI Jisheng, ZHAO Xuefeng, YANG Jinggang, et al. Measurement and Analysis of Partial Discharge on Typical Defects in GIS[J].High Voltage Engineering， 2009，35(10): 2440-2445(in Chinese)
• [9] TANG Ju, XIE Yan-bin, ZHOU Qia, et al.Characteristics of UHF partial discharge signal waveforms of typical insulated defects in GIS[J]. Journal of Chongqing University，2009， 32(10): 1138-1143(in Chinese)
• [10] TAFLOVE A, UMARSHANKAR K R, Review of FDTD Numerical Modeling of Electromagnetic Wave Scattering and Radar Cross Section, Proc. IEEE, 1989 77(5): 582-699