[1]王丽敏,陆履豪,沈连丰.故障高压绝缘子泄漏电信号在线检测技术研究[J].东南大学学报(自然科学版),2004,34(6):824-827.[doi:10.3969/j.issn.1001-0505.2004.06.024]
 Wang Limin,Lu Lühao,Shen Lianfeng.Study about online discriminating fault insulator through measurement of the leakage current signal[J].Journal of Southeast University (Natural Science Edition),2004,34(6):824-827.[doi:10.3969/j.issn.1001-0505.2004.06.024]
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故障高压绝缘子泄漏电信号在线检测技术研究()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
34
期数:
2004年第6期
页码:
824-827
栏目:
电气工程
出版日期:
2004-11-20

文章信息/Info

Title:
Study about online discriminating fault insulator through measurement of the leakage current signal
作者:
王丽敏12 陆履豪1 沈连丰2
1 南京工程学院通信工程系, 南京 210013; 2 东南大学无线电工程系, 南京 210096
Author(s):
Wang Limin12 Lu Lühao1 Shen Lianfeng2
1 Department of Communication Engineering, Nanjing Institute of Technology, Nanjing 210013, China
2 Department of Radio Engineering, Southeast University, Nanjing 210096, China
关键词:
故障绝缘子 漏电脉冲 高速数据采集 小波变换
Keywords:
fault insulator leakage current pulse high rate data acquisition wavelet transform
分类号:
TM855
DOI:
10.3969/j.issn.1001-0505.2004.06.024
摘要:
分析了高压绝缘子故障发生的机理,针对故障绝缘子绝缘水平下降会导致漏电脉冲信号幅度和频谱均发生变化的现象,设计和制造了通过在绝缘子承载铁塔接地线上检测电晕漏电脉冲信号的高速数据采集系统.采用Matlab所提供的一维离散小波分析工具软件,对所采集的漏电数据信号实现小波变换分析.从各种不同正常和故障绝缘子组合所检测到的数据分析结果可以明显看出,有故障绝缘子存在时,所采集的漏电脉冲信号幅度和频谱均发生了明显的变化.
Abstract:
The damage mechanism of fault insulator is analyzed. When the insulation level of insulator degrades, the leakage current increases and some change in the amplitude and frequency spectrum of leakage current pulse signal occurs. According to this phenomenon, a high rate data acquisition system for the measurement of leakage current pulse signal is designed. To use the software wavelet 1-D in Matlab toolbox these acquired data were analyzed. Through combining various normal insulators and fault insulators, the different measured data were captured. Wavelet transform analysis results about these data files show that the signal amplitude and frequency spectrum are obviously different.

参考文献/References:

[1] 梁曦东,陈昌渔,周远翔.高电压工程[M].北京:清华大学出版社,2003.9.
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备注/Memo

备注/Memo:
基金项目: 江苏省高等学校自然科学研究计划资助项目(01KJB470004).
作者简介: 王丽敏(1972—),女,硕士生; 沈连丰(联系人),男,教授,博士生导师,lfshen@seu.edu.cn.
更新日期/Last Update: 2004-11-20