Study of signal processing and feature extraction method for partial discharge in subway DC cables

• Autorzy: Zheng W. , Qian Y. , Huang C. , Xiucheng J.

Warianty tytułu

PL

Przetwarzanie sygnału i ekstrakcja danych w podziemnych kablach DC

• Języki publikacji: EN

Abstrakty

EN

In the contribution, some preliminary work on insulation subway cable was reported. Accordingly, the paper mainly deals with two problems, focusing on denoising algorithms, associated with various outside interferences existing in the field, and feature extraction method, regarding the evaluation and diagnosis results. Three distinctive categories of interferences were classified, 4 time interval based discharge diagrams were formed, 22 statistical operators were calculated out and further fingerprint of DC discharge was constructed.

PL

W pracy analizowano izolację podziemnych kabli DC. Opracowano algorytm odszumiania wpływów interferencji zewnętrznych pól elektromagnetycznych. Przedstawiono główne kategorie interferencji, zaproponowano statystyczne operatory do ekstrakcji danych.

Słowa kluczowe

EN

partial discharge; signal processing; feature extraction

PL

wyładowania niezupełne; przetwarzanie sygnałów

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Przegląd Elektrotechniczny
• Rocznik: 2011
• Tom: R. 87, nr 5
• Strony: 272--274
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Zheng W.

autor

Qian Y.

autor

Huang C.

autor

Xiucheng J.

• Shanghai Jiao Tong University,

Bibliografia

• [1] Shen, X.-J., S.-P. Da, X.-C. Jiang, Yi Zeng, "Faults analysis of DC feeder cable and countermeasures," High Voltage Engineering, vol.33, pp. 174-176, March 2007.
• [2] Shen, X., X. Jiang, J. Bai, S. Da, Y. Zeng, P. Xu, "Research of interference in on-line discharge detection in 1500 V subway direct current cable," High Voltage Engineering,vol.32, pp.29- 31,May 2006.
• [3] Bai, J.-S., G.-H. Sheng, X.-C. Jiang and Yi Zeng, "Features extraction method of DC partial discharge based on mobile time window," Automation of Electric Power Systems, vol.29, pp.55-59, July 2005.
• [4] Fromm, U., "Interpretation of partial discharges at dc voltages," IEEE Transactions on Dielectrics and Electrical Insulation, vol.2, pp.761-770, May 1995.
• [5] Xu, P., Y. Zeng, X.-C. Jiang, "Development of an on-line monitoring system of 1.5 kV DC cable," High Voltage Apparatus, vol.42, pp.38-41, January 2006.
• [6] Morshuis, P., M. Jeroense, J. Beyer, "Partial discharge part XXIV: The analysis of PD in HVDC equipment," IEEE Electrical Insulation Magazine, vol.13, pp.6-16, February 1997.