Study on time-frequency extractors for partial discharge pulse current used in sequence grouping and identification

• Autorzy: Wenrong S. , Chenzhao F. , Kai G. , Hua H. , Hao N.

Warianty tytułu

PL

Czasowo-częstotliwościowa ekstrakcja i identyfikacja impulsu wyładowania niezupełnego

• Języki publikacji: EN

Abstrakty

EN

This paper introduces a general way to make feature extraction for partial discharge (PD) pulse waveshape used in sequence grouping resorting with equivalent time-frequency method. A digital ac PD pulse detection system with bandwidth of 10 kHz - 40 MHz and sampling rate of 100 MS/s is introduced, which was developed to study those feature extractors. Simulation and test results with gas insulated switch (GIS) show that they are practical and effective to develop PD detection system with grouping and identification technique.

PL

Dokonano ekstrakcji impulsu wyładowania niezupełnego przy wykorzystaniu odpowiedniej metody czasowo-częstotliwościowej. Wykorzystano system cyfrowy z pasmem 10 kHz – 40 MHz i częstotliwością próbkowania 100 MS/s. Badania wyłącznika gazowego potwierdziły skuteczność metody.

Słowa kluczowe

EN

electrical technology; electrical power engineering; partial discharge; pulse current; feature extraction; grouping; identification

PL

elektrotechnika; elektroenergetyka; wyładowanie niezupełne; impuls prądowy; identyfikacja

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 10
• Strony: 340--349
• Opis fizyczny: Bibliogr. 23 poz., il., tabl., wykr.

Twórcy

autor

Wenrong S.

autor

Chenzhao F.

autor

Kai G.

autor

Hua H.

autor

Hao N.

• East China Electric Power Test & Research Institude Company Limited, Shanghai, China, 200437,

Bibliografia

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