±1100kV特高压直流输电线路舞动理论计算研究  

Theoretical Calculation on Galloping of±1100 kV UHVDC Transmission Line

作　　者：高彬 刘林芳 冯衡 吴海洋 曾二贤 GAO Bin;LIU Linfang;FENG Heng;WU Haiyang;ZENG Erxian(Central Southern China Electric Power Design Institute of China Power Engineering Consulting Group,Wuhan 430071,China)

机构地区：[1]中国电力工程顾问中南电力设计院有限公司,湖北武汉430070

出　　处：《电力科学与工程》2020年第1期50-54,共5页Electric Power Science and Engineering

摘　　要：为了研究不同参数对输电线路舞动的影响规律,以昌吉—古泉±1100 kV特高压直流输电线路工程为基础,给出Den Hartog舞动模型的解析解,分别计算分析了档距、攻角、张力、导线单重对临界风速的影响。将理论计算结果与昌吉—古泉工程实际观测结果进行对比,二者基本一致,依据理论计算,可以判断输电线路是否达到易舞条件,预测输电线路的舞动情况,为电网运维人员合理制定调度决策提供支持。To study the influence of different parameters on the galloping of transmission lines,analysis solutions of Den Hartog galloping are provided,based on Changji-Guquan±1100kV UHV DC Transmission Lines Project.The effects of span,angle of attack,single conductor weight,tension on critical wind speed are calculated and studied respectively.It is found that the theoretical calculation results are basically consistent with the actual observation results of the Changji-Guquan project.This theoretical calculation can be used to determine whether galloping would happen and give prediction,which can provide support for the operation and maintenance personnel to make rational dispatching decisions.

关 键 词：特高压 舞动 档距 攻角 临界风速 导线张力 

分 类 号：TM753[电气工程—电力系统及自动化]