采用无线信号传输的输电线路导线风偏在线监测系统设计  

Design of Transmission Lines New Wind Deviation On-line Monitoring System

作　　者：黄新波[1,2] 陶保震[3] 赵隆[1] 刘家兵[2] 李国倡[1] 

机构地区：[1]西安工程大学电子信息学院,西安710048 [2]西安金源电气有限公司,西安710075 [3]国电南京自动化股份有限公司,南京210003

出　　处：《高电压技术》2011年第10期2350-2355,共6页High Voltage Engineering

基　　金：国家自然科学基金(51177115);国家重点基础研究发展计划(973计划)(2009CB724507-3);陕西省科学技术研究发展计划(2011KJXX09)~~

摘　　要：针对近年来频繁发生的输电线路风偏闪络事故,从风偏机理,风偏闪络规律及特点两个方面分析了输电线路风偏故障。提出了一种新型输电线路风偏在线监测系统,系统采用无线风偏监测仪,通过上下两个风偏角结合进行计算,得出绝缘子串实际的风偏角;介绍了监测系统的系统组成、实现的功能和无线风偏监测单元的设计原理;研究了新型风偏角计算的数学模型,经过现场数据分析,与传统计算方法对比,采用该模型能够更准确地反映实际的导线风偏情况。目前,该系统已经在向家坝-上海±800kV特高压直流输电工程运行,系统运行情况良好,能够有效指导高压输电线路运行维护管理。In accordance with the frequent flashover of transmission lines caused by wind deviation, we analyzed wind power transmission lines malfunction from two aspects of wind oscillation mechanism, wind oscillation rules and features, and put forward a new kind of on-line monitoring system for wind power transmission lines. Meanwhile, we adopted wireless wind oscillation monitors, and used upper and lower wind deflection angle to compute the actual wind deflection angle of insulator string, and introduced the monitoring system components of the system, the function and wireless realization design principle of wind monitoring unit is presented. Moreover, a mathematic model for a new deflection angle calculation was studied. The data analysis reveals that, the model is accurate for the actual conductor wind oscillation. This system has successfully been put into operation in 800kV Xiang Jiaba - Shanghai ultra high voltage project.

关 键 词：高压输电线路 导线风偏 在线监测 无线风偏监测仪 微气象监测 风偏数学模型 

分 类 号：TM755[电气工程—电力系统及自动化]