The Study of Denoising Algorithm for Partial Discharge Signal Based on the Wavelet

Abstract:

Since the strong coupling property between partial discharge and external interference, how to obtain an acceptable Resolution is a huge challenge during partial discharge measure. In terms of interference suppression, many methods associated with analog and digital technique are devised. Whatever the methods are, the way to eliminate pulse interference is the toughest task due to the closest feature in the respect of time and frequency field compared with partial discharge. In this paper, we propose a wavelet based interference separation method to separate partial discharge signal compounding with random pulse signal, mobile communication signal and white noise, providing valid data for the following partial discharge measurement. Both simulation and practical results verify the effectiveness of our proposed method.

• Periodical: Advanced Materials Research (Volumes 1070-1072)
• Pages: 994-1000
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1070-1072.994
• Online since: December 2014
• Authors: Lu Li, Guo Qing Jiang, Tian Ye Niu*, Yi Wang, Yong Lu, Qi Lan, Li Chang, Ya Lin Liu, Chao Chen
• Keywords: Interference Separation, Partial Discharge Signal, Time-Frequency Analysis, Wavelet Transform (WT)

References

[1] Tang Ju, zhu wei, Sun Cai new etc. The GIS partial discharge uhf detection [J]. High voltage technology, 2003, 29 (12) : 22-23 zhongguo kuangye daxue. DOI: 10. 3969 / j. i SSN. 1003-6520. 2003. 12. 009.

[2] Peng Wenxiong etc. The GIS partial discharge detection in wavelet packet transform to extract the signal [J]. Automation of electric power systems, 2004, 28 (5) : 25 to 29.

[3] Shao Tao Zhou Wenjun, Zhu Yifei etc. The GIS partial discharge uhf method of experimental study [J]. High voltage technology, 2001, 27 (3) : 15 to 16. DOI: 10. 3969 / j. i SSN. 1003-6520. 2001. 03. 006. ROM. Four culture Duan Jiandong, Zhang Bao. Based on the transient amount of EHV/UHV transmission lines ultra-high-speed protection and research status quo and prospect [J]. Power grid technology, 2006, 30 (22) : 32 ~ 41.

DOI: 10.1109/tdc.2005.1547120

[4] Satish, L.; Nazneen, B., Wavelet-based denoising of partial discharge signals buried in excessive noise and interference, Dielectrics and Electrical Insulation, IEEE Transactions on , vol. 10, no. 2, p.354.

DOI: 10.1109/tdei.2003.1194122

[5] Si WenRong Li Junhao, Yuan Peng etc. Partial discharge uhf narrowband signal monitoring technology [J]. Journal of electrotechnics, 2008, 23 (1) : 7-12.

[6] Gerrard C P. PULSE DISCRIMINATION CIRCUIT: U.S. Patent 3, 539, 929[P]. 1970-11-10.

[7] Zhou ning, li Ming. A kind of wavelet domain smoothing filtering clutter suppression method [J]. Journal of electronics, 2010, 38 (7) : 1641-1645.

[8] Zhang Yongfei, wei security, Sun Yuqi etc. DSSS system frequency domain interference suppression optimum threshold selection algorithm study [J]. Journal of electronic technology in shanxi, 2011, (1) : 82-84.

[9] Hou Zheng letter, Wang Zhaohua Yang Xi. The design and implementation of all phase DFT digital filter [J]. Journal of electronics, 2003, 31 (4) : 539-543.

[10] Cui Jintai Cheng Zhengxing. Introduction to wavelet analysis [M]. Xi 'an jiaotong university press, (1995).

[11] Zou Gongxing Zhou Xiaobo, Li Yanda. Time-frequency analysis: back and forward [J]. Journal of electronics, 2000, 28 (9) : 78-84.

[12] Wang gang, Li Haifeng Zhao Jiancang etc. Based on wavelet multi-scale analysis of the transmission line lightning transient recognition [J]. Proceedings of the csee, 2004, 24 (4) : 139-144.

[13] Liu Yunpeng, law of ejection, Li Chengrong etc. Morphology, integrated wavelet filter discharge field interference suppression technique, 2004, 30 (2) : 29-31, DOI: 10. 3969 / j. i SSN. 1003-6520. 2004. 02. 012.

[14] Noble, yan ying-bai, jin guo-fan etc. Multiple mother wavelet adaptive wavelet filter [J]. Journal of optoelectronics, lasers, 2005 (11) : 1359-1362.

[15] Tang Ju Zhou Qian, Xu Zhongrong etc. The GIS uhf signal the mathematical modeling of partial discharge [J]. Proceedings of the csee, 2005, 25 (19) : 106-110.