Investigation on Chaotic Characteristic of PD Magnitude Series during Propagation of Electrical tree in XLPE Power Cables

• Autorzy: Liao R. , Wang K. , Liu L. , Zhou T. , Zhou Q.

Warianty tytułu

PL

Badania i opis teoretyczny chaotycznego charaktery wyładowania w kablach XLPE

• Języki publikacji: EN

Abstrakty

EN

The electrical tree propagation experiments were performed under high voltages with a frequency of 50Hz and amplitudes ranging from 12kV to 21kV at room temperature by utilizing an actual XLPE cable as the test sample, where the concentration of electrical field was simulated by a metal needle tip. The chaotic theory was introduced to analyze the PD magnitude series during the propagation process of electrical tree. Experimental results show that deterministic chaos exists in the propagation of electrical tree in XLPE cables, and the largest Lyapunov exponent and correlation of the strange attractors increase with the decrease of electrical tree fractal dimension. The results may provide a new approach for online diagnosis of electrical tree morphology.

PL

rzedstawiono wynika badania wyładowania w kablu XPLE przy częstotliwości 50 Hz i napięciu 12 – 21 kV. Stwierdzono chaotyczny charakter drzewienia elektrycznego. Zaproponowano opis teoretyczny umożliwiający łatwe rozpoznanie typu wyładowania.

Słowa kluczowe

EN

XLPE cables; electrical tree; partial discharge

PL

wyładowanie niezupełne; drzewienie elektryczne; kable XLPE

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 5b
• Strony: 213--217
• Opis fizyczny: Bibliogr. 19 poz., schem.

Twórcy

autor

Liao R.

autor

Wang K.

autor

Liu L.

autor

Zhou T.

autor

Zhou Q.

• State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University

Bibliografia

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