摘要
由于覆冰和风力的作用,架空输电线会发生舞动。针对这一现象对架空输电线舞动实时监测,运用了一种弧长约束下基于分布式角度信息的舞动曲线重建方案。该方案通过在输电线沿线上布置一系列倾角传感器,得到沿线上不同输电线段弧长的倾角信息,根据倾角和弧长之间存在的约束关系,建立关于倾角信息与弧长的函数关系式,从而重构原始舞动曲线。仿真结果证明：角度信息可实现曲线重构理论的正确性,实现了误差率低于0.3%的圆弧重构。实验结果表明：该方法将较易测量且较精确的相对信息转换成曲线的空间绝对位置信息,能直观地呈现整条线路状况,实现了误差率低于1.357%的空间舞动曲线重建,实现输电线路实时监测,且具有工程实用性。
Due to the effects of ice and wind, overhead transmission lines can dance. Therefore, for realizing the real-time monitoring of galloping of overhead transmission line, we propose a method based on distributed angle information and arc-length constraint of the galloping curve reconstruction. Through the arrangement of a series of angle sensor along the transmission line, we can get information on different arc length along the dip. According to the constraint relation between angle and arc length, we set up a function relation between the angle and the arc length, which can reconstruct the original wave curve. The simulation results prove the theory＇s correctness, which is based on the angle information and arc-length, and achieve that the error rate of the arc reconstruction is less than 0.3%. The experimental results show that this method is easier to measure and more precise to convert relative information to the absolute position information of the curve along the line. Meanwhile, this method, which verifies the low-error 1.357% reconstruction and realizes the real-time monitoring the galloping with practical engineering, makes the whole route condition to be intuitive.
作者
曹海林
陶璐
蔡文斌
刘璟
李东
杨士中
CAO Hailin1,2, TAO Lu1, CAI Wenbin3, LILT Jing1, LI Dong1, YANG Shizhong1,2(1. The Center of Communication and Tracking Telemetering ＆ Command, Chongqing University, Chongqing 400030, China; 2. State Key Laboratory of Power Transmission Equipment ＆ System Security and New Technology, Chongqing University, Chongqing 400030, China; 3. Hainan Power Grid Co., Ltd., Haikou 570203, Chin)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2018年第5期1535-1541,共7页
High Voltage Engineering
基金
国家自然科学基金(51377179
61301120)~~
关键词
架空输电线路
舞动
倾角传感器
弧长约束
监测
transmission line
galloping
angle sensor
arc-length constraint
monitor
