基于倾角及导线温度的输电线路覆冰在线监测研究  

Study on Online Icing Monitoring for Transmission Lines Based on Inclination Angle and Wire Temperature

作　　者：王郑 李海锋 周大为 易永亮 吴太武 WANG Zheng;LI Haifeng;ZHOU Dawei;YI Yongliang;WU Taiwu(Guiyang Bureau of China Southern Power Grid Co.,Ltd.,Ultra High Voltage Transmission Company,Guiyang 550000,China)

机构地区：[1]中国南方电网有限责任公司超高压输电公司贵阳局,贵州贵阳550000

出　　处：《电工技术》2024年第14期142-144,共3页Electric Engineering

摘　　要：首先给出导线温度、绝缘子串倾角一体化观测设计模式,其次采用小波变换算法降低覆冰期大风速工况下导线振动倾角实时采集误差,最后结合人工观冰资料,研究导线温度、倾角及观冰资料相关性关系,并建立线性表达式。研究表明经小波变换处理后,倾角误差保持在0.035°范围内。倾角与导线温度、覆冰厚度均呈较好的线性关系,相关系数分别为0.9412、0.918。利用所建立的线性关系表达式,能够根据传感器采集的变量数据较好地计算出覆冰厚度。This paper first presents an integrated observation design mode for wire temperature and insulator string inclination angle.Second it uses wavelet transform algorithm to reduce the real-time collection error of wire vibration inclination angle under high wind speed conditions during icing period.Finally combined with artificial ice observation data,the correlation between wire temperature,inclination angle,and ice observation data is studied,and its linear expression is established.The results show that after wavelet transform processing,the inclination error remains within the range of 0.035°;The inclination angle has a good linear relationship with wire temperature and ice thickness,with correlation coefficients of 0.9412 and 0.9187,respectively.The determined linear relationship expressions can be used to well calculate ice thickness according to variable data collected by sensors.

关 键 词：输电线路 覆冰 倾角 导线温度 

分 类 号：TM726[电气工程—电力系统及自动化]