沙漠区域输电线路绝缘子风偏运动分析  

Wind deviation motion spectrum analysis of insulators intransmission lines of desert areas

作　　者：李晓光 龚浩 金铭[1] 王建 刘春翔 李昆 刘健[2,3] LI Xiaoguang;GONG Hao;JIN Ming;WANG Jian;LIU Chunxiang;LI Kun;LIU Jian(Electric Power Research Institute of State Grid Xinjiang Electric Power Co. ltd., Urumqi 830011, China;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]国网新疆电力有限公司电力科学研究院,新疆乌鲁木齐830011 [2]南瑞集团(国网电力科学研究院)有限公司,江苏南京211106 [3]国网电力科学研究院武汉南瑞有限责任公司,湖北武汉430074

出　　处：《湖北大学学报（自然科学版）》2021年第1期91-95,共5页Journal of Hubei University：Natural Science

基　　金：国家电网公司科技项目(5200-201930071A-0-0-00)资助。

摘　　要：为研究沙漠区域输电线路绝缘子风偏的灾害机理,采用视频图像分析和光纤光栅位移传感器获得绝缘子风偏振动运动过程.研究结果表明:绝缘子风偏整个运动过程包含无规律的风偏运动和抖振运动,风偏幅度与风速值之间强相联,风偏值为1~3 m/s,抖动值为-400~400 mm;风的垂直分量引起绝缘子风偏向上运动,风的水平分量导致导线水平运动,运动过程直接加剧连接金具的磨损.研究结果为沙漠区域绝缘子风偏的灾害防治提供参考.In order to obtain the fault mechanism of wind deflection of insulator string in the desert areas,video image measurement and fiber Bragg grating displacement sensor were applied to obtain the insulator deflection and vibration movement process under sand wind.On this basis,the insulators deflection and vibration movement process were analyzed.The results show that the wind deviation amplitude of the insulator string is strongly correlated with the maximum wind speed,and the whole movement process include irregular wind deviation and chattering.The wind deviation value of insulator string is 1~3 m/s,and the chattering offset value was less than-400~400 mm.The vertical component of the wind load cause the insulators to move upward,while the horizontal component of the wind load cause the horizontal movement of the insulator string,which directly aggravated the wear and tear of the connecting fittings.The results provide references for prevention and control of wind drift of insulators in desert areas.

关 键 词：沙漠区域 输电线路绝缘子 风偏运动 频谱分析 接触应力 

分 类 号：TM726.3[电气工程—电力系统及自动化]