基于信息融合的绝缘子污闪故障诊断研究  

Fault Diagnosis and Analysis of Insulator Pollution Flashover Based on Information Fusion

作　　者：吴念[1,2] 王钊[1,2] 林卿 周赞东[1,2] WU Nian;WANG Zhao;LIN Qing;ZHOU Zandong(NARI Group Corporation （State Grid Electric Power Research Institute）, Nanjing 211106, China;Wuhan NARI Limited Liability Company, State Grid Electric Power Research Institute, Wuhan 430074, China)

机构地区：[1]南瑞集团公司(国网电力科学研究院),南京211106 [2]国网电力科学研究院武汉南瑞有限责任公司,武汉430074

出　　处：《电瓷避雷器》2018年第2期199-203,共5页Insulators and Surge Arresters

摘　　要：目前,污闪故障已成为影响输电线路安全稳定运行的主要故障之一。为了提高电网防污闪工作水平,本文结合某网省公司历史污闪故障,分析绝缘子污闪影响因子,融合行波测距、在线监测、历史故障库等多源信息,提炼污闪故障影响因素,构建绝缘子污闪故障诊断模型及方法,分析污闪故障模式影响概率,指导污闪事故判定。最后,结合构建的污闪故障诊断模型层级,将实际发生故障案例代入模型分析,计算污闪故障概率,初步判定故障类型,与后续现场排查对比显示故障诊断结果吻合,为电网故障分析工作提供高效辅助。At present, the pollution flashover has become one of the main faults that affect the sate and stable operation of transmission lines. In order to improve the level of anti-pollution flashover in the power grid, this paper analyzes the occurrence influencing factor of the insulator pollution flashover, which is based on the historical pollution flashover fault. This paper combines the multi-source information such as travelling wave fault location, on-line monitoring, and historical fault database and so on. On this basis, the influencing factors of pollution flashover fault are extracted. At the same time, the fault diagnosis model and method of pollution flashover of transmission line are constructed. Based on the above results, this paper analyzes the influence probability of pollution flashover fault mode, which can guide the judgment of pollution flashover accident. Finally, the actual failure cases are substituted into the model analysis to calculate the probability of pollution flashover faults, and the fault types are preliminarily determined. The diagnostic results are consistent with the follow-up site investigation, which provides efficient assistance for the power grid fault analysis.

关 键 词：输电线路 绝缘子 信息融合 故障诊断 污闪 

分 类 号：TM216[一般工业技术—材料科学与工程]