全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
高压电器  2015 

典型SF6气体绝缘缺陷局部放电脉冲的Gabor特征识别

DOI: 10.13296/j.1001-1609.hva.2015.12.025, PP. 142-148

Keywords: 局部放电, Gabor分布, SF6, 缺陷类型, 时频

Full-Text   Cite this paper   Add to My Lib

Abstract:

局部放电脉冲具有非平稳特性,采用联合时频域分析比常规的单域分析更能诊断放电的特征。因此,针对现场GIS可能存在的缺陷类型,设计了针板、悬浮和空穴的缺陷模型,提取其在工频电压下局部放电脉冲的Gabor分布特征,并采用BP人工神经网络对特征参数进行训练和测试;同时通过现场110 kV GIS的缺陷的局部放电实测,对放电脉冲Gabor特征分析的有效性进行了研究。结果表明,放电脉冲的时频特征图谱能够得到有效提取,为放电评估提供参考,特征参数的训练识别率和测试识别率较高,利于放电类型的识别。

References

[1]  陆宇航,杜伯学. 时频匹配滤波法用于变压器局部放电模式识别的实验研究[J]. 中国电力,2008,41(10):16?鄄19. LU Hangyu,DU Boxue. Experimental study on pattern recognition of partial discharge of transformer by time?鄄frequency matched filtering method[J]. Electric Power,2008,41(10): 16?鄄19.
[2]  HOSHINO T,HOSHINO T,KATOK,et al. A novel technique for detecting electromagnetic wave caused by partial discharge in GIS[J]. IEEE Trans. on Power Delivery,2001,16(4): 545?鄄551.
[3]  成永红,谢小军,陈 玉,等. 气体绝缘系统中典型缺陷的超宽频带放电信号的分形分析[J].中国电机工程学报,2004,24(8):99?鄄102. CHENG Yonghong,XIE Xiaojun,CHEN Yu,et al. Study on the fractal characteristics of ultra?鄄wideband partial discharge in gas?鄄insulated system(GIS) with typical defects[J]. Proceedings of the CSEE,2004,24(8): 99?鄄102.
[4]  肖 燕,郁惟镛. GIS中局部放电在线监测研究的现状与展望[J]. 高电压技术,2005,31(1):47?鄄50. XIAO Yan,YU Weiyong. Present status and prospect of research of on?鄄line partial discharge monitoring system in GIS[J]. High Voltage Engineering,2005,31(1): 47?鄄50.
[5]  李继胜,赵学风,杨景刚,等. GIS典型缺陷局部放电测量与分析[J]. 高电压技术,2009,35(10):2440?鄄2445. LI Jisheng,ZHAO Xuefeng,YANG Jinggang,et al. Measurement and analysis of partial discharge on typical defects in GIS[J]. High Voltage Engineering,2009,35(10): 2440?鄄2445.
[6]  吴张建,李成榕,齐 波. GIS局部放电检测中特高频法与超声波法灵敏度的对比研究[J].现代电力,2010,27(3):31?鄄36. WU Zhangjian,LI Chengrong,QI Bo. Partial discharge detection for GIS: A comparison of sensitivity between UHF and ultrasonic methods[J]. High Voltage Engineering,2009,35(10): 2440?鄄2445.
[7]  李 信,李成榕,丁立健,等. 新型GIS局放超高频传感器抑制干扰的研究[J]. 高电压技术,2004,30(2):37?鄄39. LI Xin,LI Chengrong,DING Lijian,et al. Study on anti?鄄interference with new type GIS PD ultra?鄄high frequency signal sensor[J]. High Voltage Engineering,2004,30(2): 37?鄄39.
[8]  王 猛,谈克雄,高文胜,等. 局部放电脉冲波形的时频联合分析特征提取方法[J]. 电工技术学报,2002,17(2):76?鄄79. WANG Meng,TAN Kexiong,GAO Wensheng,et al. Time?鄄frequency distribution method for extracting features of partial discharge pulse shape[J]. Transactions of China Electrotechnical Society,2002,17(2):76?鄄79.
[9]  袁 鹏,司文荣,李军浩,等. 局部放电脉冲的Wigner时频分布特性研究[J]. 高压电器,2008:44(6):524?鄄526. YUAN Peng,SI Wenrong,LI Junhao,et al. Time?鄄frequency characteristics of partial discharge pulse with Wigner?鄄ville distributions[J]. High Voltage Apparatus,2008:44(6):524?鄄526.
[10]  张贤达.现代信号处理[M].(第3版). 北京:清华大学出版社,2002:179?鄄193. ZHANG Xianda. Modern signal processing[M]. 3rd. Beijing: Tsinghua University Press,2012: 179?鄄193.
[11]  任 重,董 明,吴立远,等. 采用傅里叶变换分析冲击下GIS局部放电信号[J]. 中国电力,2013,46(4):1004?鄄9649. REN Zhong,DONG Ming,WU Liyuan,et al. Analysis of partial discharge in GIS under impulse voltage by using quadratic short?鄄time Fourier transform[J]. Electric Power,2013,46(4): 1004?鄄9649.
[12]  LIANG Guishu,ZHOU Hongwei,DONG Huaying. Joint time?鄄frequency analysis on PD pulse signals in GIS[C]// Asia?鄄Pacific Conference on Environmental Electromagnetics. Hangzhou,China:[s.n.],2003:4?鄄7.
[13]  任 重,董 明,任 明,等. 冲击电压下SF6气体在极不均匀场中局部放电的时频特征[J]. 西安交通大学学报,2013,47(8):115?鄄120. REN Zhong,DONG Ming,REN Ming,et al. Time?鄄frequency characteristics of partial discharge of SF6 gas in an extremely uneven field under impulse voltage[J]. Journal of Xi’an Jiaotong University,2013,47(8): 115?鄄120.
[14]  刘卫东,刘尚合,王 雷. 采用Gabor变换的局部放电信号时频分析[J]. 高电压技术,2007,33(8):40?鄄43. LIU Weidong,LIU Shanghe,WANG Lei. Time?鄄frequency analysis of partial discharge signal by gabor transform[J]. High Voltage Engineering,2007,33(8):40?鄄43.
[15]  罗 翔,蔡金锭,张孔林. 基于向量分析法的三相交联电缆局部放电检测与分析识别技术[J]. 电力系统保护与控制,2013,41(16):91?鄄96. LUO Xiang,CAI Jinding,ZHANG Konglin. Partial discharge detection and identification for three?鄄phase cross?鄄bonded cable based on vector analysis method[J]. Power System Protection and Control,2013,41(16):91?鄄96.
[16]  李旭涛,周 凯,万 利,等. 基于TEV法的电缆终端局部放电状态监测装置的研制[J]. 电力系统保护与控制,2013,41(12):98?鄄103. LI Xutao,ZHOU Kai,WAN Li,et al. Development of cable termination PD condition monitoring device based on TEV method[J]. Power System Protection and Control,2013,41(12):98?鄄103
[17]  JANSSEN A. Optimal property of the Gaussian window spectrogram[J]. IEEE Trans on Signal Processing,1991,39(1):202?鄄204.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133