摘要
在深入研究绝缘子及绝缘子串电晕放电指纹 (N - φ谱图 )的基础上 ,提出了用绝缘子串电晕放电的指纹来检测不良绝缘子串的新方法。在该方法中 ,应用了模式识别技术智能化判别不良绝缘子串所对应的电晕脉冲指纹 ,克服了以往三相不平衡法必须寻找工频零点的缺点 ,提高了故障诊断的准确性。在此基础上 ,研制了一台智能化便携式检测样机 ,并在 1 1 0kV线路的试用中取得了较好结果 。
Based on the finger prints of insulator corona discharges, a new detecting method is introduced to inspect for the faulty porcelain insulator string on ground in this paper. In this method, the pattern recognition was applied to identify the corona finger prints corresponding to faulty insulator strings,improving greatly the reliability of fault diagnostics. In order to confirm this technology, we developed an intelligent prototype and operated it on some 110 kV transmission lines in China. Our preliminary results is positive, indicating that the faulty insulator strings on transmission lines can be identified by this technology easily.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2000年第4期54-58,共5页
Proceedings of the CSEE
关键词
绝缘子串
电晕放电
指纹法
检测
模式识别
faulty porcelain insulator
corona discharges
pattern recognition
