Simulation study of attenuation of ultrahigh frequency electromagnetic wave by salver-shaped insulator in GIS

• Autorzy: Haifeng Y. , Yuyuan M. , Gehao S. , Xiuchen J. , Yong Q.

Warianty tytułu

PL

Badania symulacyjne tłumienia fali elektromagnetycznej ultra-wysokiej częstotliwości przez izolator rurkowy w GIS

• Języki publikacji: EN

Abstrakty

EN

We perform a simulation study of attenuation characteristics of ultrahigh frequency (UHF) electromagnetic wave excited by GIS partial discharge in salver-shaped insulator using finite-difference time-domain (FDTD) algorithm. First, the attenuation of UHF electromagnetic wave’s electric field signals which is caused by salver-shaped insulator is analysed. It is found that the insulator attenuates electric field strength of UHF electromagnetic wave propagating inside GIS cavity much less significantly as compared with that of UHF electromagnetic wave leaked to outside GIS cavity. Finally, we study the amplitude-frequency characteristics of the gain of electric field signals of UHF electromagnetic wave which is attenuated by the insulator. It is found that UHF electromagnetic wave inside GIS cavity attenuated by the insulator has the frequency above 1000MHz; UHF electromagnetic wave which is leaked to the outside of GIS cavity and attenuated by the insulator has the frequency below 1500MHz and above 3000MHz.

PL

W artykule przedstawiono wyniki badań symulacyjnych charakterystyki tłumienia fali elektromagnetycznej UHF, generowanej przez wyładowanie niezupełne w aparaturze rozdzielczej typu GIS. W analizie posłużono się algorytmem wykorzystującym metodę różnic skończonych w dziedzinie czasu. Przeprowadzono także badania nad charakterystyką amplitudowo-częstotliwościową wzmocnienia składowego pola elektrycznego fali przy tłumiącym działaniu izolatora.

Słowa kluczowe

EN

GIS; salver-shaped insulator; ultra high frequency; UHF; FDTD

PL

izolator rurkowy; UHF; metoda różnic skończonych w dziedzinie czasu

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2013
• Tom: R. 89, nr 2a
• Strony: 122--125
• Opis fizyczny: Bibliogr. 12 poz., schem., wykr.

Twórcy

autor

Haifeng Y.

• School of Electrical Engineering, Shanghai Jiaotong University. 800 Dongchuan Road, Minxing District, Shanghai, 200240, Tel.: [phone]

autor

Yuyuan M.

• Tianjin electric power research institute

autor

Gehao S.

• Shanghai Jiao Tong University

autor

Xiuchen J.

• Shanghai Jiao Tong University

autor

Yong Q.

• Shanghai Jiao Tong University

Bibliografia

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• [9] Tang Ju, Zhu Wei,Sun Caixin, et al,Analysis of UHF Method Used in Partial Discharge Detection in GIS, High VoltageEngineering, 29(2003)，No.12,22-23，55
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