110 kV输电线路复合绝缘子鸟粪闪络仿真研究  

Simulation Study on Bird Droppings Flashover of Composite Insulator for 110 kV Transmission Line

作　　者：郝金鹏 伍弘 刘世涛 杨凯 房子祎 王羽 吴强[4] HAO Jinpeng;WU Hong;LIU Shitao;YANG Kai;FANG Ziyi;WANG Yu;WU Qiang(Electric Power Research Institute of State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750011,China;State Grid Ningxia Electric Power Co.,Ltd.,Yinchuan 750001,China;Wuhan Anhaixun Technology Co.,Ltd.,Wuhan Hubei 430072,China;School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China)

机构地区：[1]国网宁夏电力有限公司电力科学研究院,宁夏银川750011 [2]国网宁夏电力有限公司,宁夏银川750001 [3]武汉安海迅科技有限公司,湖北武汉430072 [4]武汉大学电气与自动化学院,湖北武汉430072

出　　处：《绝缘材料》2021年第10期73-78,共6页Insulating Materials

基　　金：宁夏自然科学基金资助项目(2020AAC03488)。

摘　　要：鸟害是影响输电线路安全运行的重要因素。为定量分析鸟粪在绝缘子附近滴落时的空间电场分布情况,对110 kV复合绝缘子鸟粪闪络开展仿真计算,研究不同因素对电场的影响。结果表明:鸟粪连续通道越长、距离绝缘子越近,发生闪络的概率越高;均压环的存在缩短了高、低压端之间的距离,会提高闪络概率;鸟粪滴落路径对闪络概率影响较大,当鸟粪与导线异面时闪络概率最低;最后结合仿真结果,提出新的鸟粪闪络防护范围,并对输电线路防鸟害工作提出了建议。Bird damage is an important factor affecting the safe operation of transmission lines.In order to quantitatively analyze the spatial electric field distribution of bird droppings near insulators,we carried out simulation and calculation on the bird droppings flashover of 110 kV composite insulators,and studied the influence of different factors on the electric field.The results show that the longer the continuous channel of bird droppings,and the closer it is to the insulator,the more probable that flashover occurs.The existence of grading ring shortens the distance between the high and low voltage ends,which will increase the flashover probability;the dropping path of bird droppings has a great influence on the flashover probability,and the flashover probability is the lowest when the bird dropping is on the different surface of the transmission line.Finally,combined with the simulation results,new protection range of bird droppings is proposed to give some advice for protecting transmission line from bird damage.

关 键 词：110 kV输电线路 复合绝缘子 鸟粪闪络 防护范围 

分 类 号：TM216[一般工业技术—材料科学与工程]