输配电线路零值绝缘子红外检测技术研究  

Study on Infrared Detection Technology of Zero Resistance Insulators on Transmission and Distribution Line

作　　者：杨磊 李爱华 李宜平 黄刚 李金哲 伍煌彬 YANG Lei;LI Aihua;LI Yiping;HUANG Gang;LI Jinzhe;WU Huangbin(State Grid Hubei Jingzhou Electric Power Co.,Ltd.,Jingzhou 434000,China;State Grid Hubei Songzi Electric Power Co.,Ltd.,Songzi 434200,China)

机构地区：[1]国网湖北省电力有限公司荆州供电公司,湖北荆州434000 [2]国网湖北省电力有限公司松滋市供电公司,湖北松滋434200

出　　处：《电工技术》2022年第13期79-82,共4页Electric Engineering

基　　金：国网湖北省电力有限公司/国网湖北省电力有限公司荆州供电公司科技项目“基于红外成像的10kV架空配电线路零值绝缘子识别技术研究”(编号B715J2210013)。

摘　　要：瓷绝缘子在长期机电负荷与恶劣气候条件影响下,易发生劣化并出现零值现象,导致绝缘子串的有效爬电距离缩短,在过电压下易发生闪络击穿,严重威胁输配电线路的安全运行。红外热像法因其非接触式、安全高效的优点,成为现有技术中相对可行的零值绝缘子带电检测方法。介绍了红外成像技术检测零值绝缘子的原理,概述了红外图像预处理、红外热像特征提取与零值绝缘子识别模型的研究现状,提出了零值绝缘子红外热像智能检测流程,可为零值绝缘子的带电检测提供参考。Porcelain insulators may deteriorate and result in zero resistance phenomenon due to long-term mechanical and electrical loads and harsh weather conditions,which will shorten the effective creepage distance of insulator string,and easily cause flashover or breakdown under overvoltage,seriously threatening the safe operation of transmission and distribution lines.Infrared thermography has become a relatively feasible method for online detection of zero resistance insulators due to its advantage of non-contact,safety and high efficiency.The principle of zero resistance insulator detection based on infrared thermography technology is introduced,and the research status of infrared image preprocessing,infrared thermal image feature extraction and zero-value insulator recognition model are summarized.The intelligent detection flowchart of infrared thermal image of zero resistance insulator is finally put forward,which can provide references for online detection of zero resistance insulators.

关 键 词：零值绝缘子 红外热像法 图像去噪 图像分割 特征提取 

分 类 号：TM726[电气工程—电力系统及自动化]