输电导线舞动特性分析及监测系统Ⅰ  

Galloping characteristics analysis and monitoring system of continuous crescent iced conductor

作　　者：冯文斌 虢韬 杨惠民 徐梁刚 王璐[2] 祝贺[2] Feng Wenbin;Guo Tao;Yang Huimin;Xu Lianggang;Wang Lu;Zhu He(Transmission and Maintenance Branch of Guizhou Power Grid Co.Ltd.,550002,Guiyang,China;Northeast Electric Power University Graduate School,132012,Jilin,China)

机构地区：[1]贵州电网有限责任公司输电运行检修分公司,贵阳550002 [2]东北电力大学研究生院,吉林132012

出　　处：《应用力学学报》2021年第5期2188-2195,共8页Chinese Journal of Applied Mechanics

基　　金：贵州电网有限责任公司输电运行检修分公司输电线路直流融冰短接操控系统研究与应用(2018220202000);吉林省科技发展计划项目(20180201016SF)。

摘　　要：为确定连续档导线的舞动特性,建立导线舞动的力学模型和振动方程,对其进行受力分析及状态研究,并对连续档塔线体系进行仿真分析。其结果表明:在连续档单档覆冰导线舞动下,偏心覆冰导线结构在竖直和水平方向上的受力、扭转存在气动力耦合现象;输电线路舞动时主要以气动升力,气动阻力和扭转力矩为主;此外,从仿真结果看,不同位置导线的动态气动力参数波动程度相近,且气动阻力和气动力矩呈现出明显的同运动轨迹周期相同的周期性变化。因此,设计导线舞动及周边环境的在线监测系统,对导线运行状态及周边环境进行实时监测,可以确保输电线路的安全稳定运行。In order to determine the galloping characteristics of continuous conductors,the mechanical model and vibration equation of galloping conductors are established,and the force analysis and state study are carried out.The finite element model of galloping continuous traverse is established by ANSYS software.The simulation results show that the low-order modes have great influence on the displacement vibration amplitude,while the high-order modes have obvious influence on the stress vibration amplitude.Therefore,an on-line monitoring system for conductor galloping and surrounding environment is designed to real-time monitor the operation status of conductors and ensure the safe and stable operation of transmission lines.

关 键 词：塔线体系 连续档 导线舞动 振动幅值 在线监测 

分 类 号：TM726[电气工程—电力系统及自动化]