Online fractal identification of cable’s ground fault traveling wave in mine

• Autorzy: Li, W. , Zhang, X. , Qi, X. , Zhang, S.

Warianty tytułu

PL

On-line fraktalna identyfikacja zwarć doziemnvch na podstawie analizy wędrującego udaru

• Języki publikacji: EN

Abstrakty

EN

In order to capture the occurrence moment of traveling wave to accurately locate the ground fault of high voltage transmission electricity cable, we analyzed the transient process of the traveling wave produced by cable ground fault, finding it is a self-similar process on specific bandwidth in a strict sense, and further proposed a fractal identification algorithm based on quadratic spline orthogonal wavelet. Experiment denotes that the occurrence moment of traveling wave can be obtained from waveform on different scales by fractal identification of test signal.

PL

Opracowano system detekcji zwarć doziemnych w kablach wysokonapięciowych stosowanych w kopalniach. System bazuje na ortogonalnych splinowych falkach i realizuje identyfikację fraktalną.

Słowa kluczowe

PL

zwarcie doziemne; wędrujący udar

EN

single-phase ground fault; traveling wave

• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2012
• Tom: R. 88, nr 5b
• Strony: 48-51
• Opis fizyczny: Bibliogr, 8 poz., schem.

Twórcy

autor

Li, W.

autor

Zhang, X.

autor

Qi, X.

autor

Zhang, S.

• Shan Dong University of Science and Technology

Bibliografia

• [1] Ge Yaozhong, New types of protective relaying and fault location theory and techniques[M], Xi’an: Xi’an Jiaotong University Press, 1996: 217-314
• [2] Shehab-Eldin E. H., Mclaren P. G.,Travelling W ave Distance Protection Problem Areas and Solutions, IEEE Trans on Power Delivery, 1988, 393): 894-902
• [3] Ge Yao-zhong, Dong Xin-zhou, Dong Xing-li, Traveling Wave Based Distance Protection with Fault Location Part One— Theory and Technology, Automation of Electric Power Systems, 2002, 26(6): 34-40
• [4] ShiShen-xing, Dong Xin-zhou, ZHou Shuan-xi, Analysis of Singale-phase-to-ground Fault Generated Traveling Waves, Automation of Electric Power Systems, 2005, 29(23): 29-32,53
• [5] SHi Shen-xing, Dong Xin-zhou, ZHou Shuang-xi, A New Method of Wave Identification of Second One-phase-ground-fault Reverse Wave.
• [6] Li Bi-cheng, Luo Jian-shu, Wavelet Analysis and It’s Application[M], BEIJING Publishing House of Electronics Industry, 2003, 5: 145-161
• [7] L Keen, Time-Frequency analysis[M], U.S Prentice Hall 1995
• [8] ZHan Fan, etc, Transmission Line Fault Location and Protection Based on Gap Between Zero Mode and Aerial Mode Traveling Wave Propagation Time, Proceedings of CSEE. 2009 29(10): 78-83