摘要
为提高输变电铁塔线路的稳定性,将振弦传感器应用到铁塔应力监测,并实现远程无线监测。通过对铁塔整体建模,进行有限元仿真,找出铁塔关键部位应力集中区域,在集中区域关键部位安装振弦传感器。数据传输采用无线传输和电力光纤通信(OPGW)结合的通信网络、多跳宽带Mesh组网、定向天线和多信道并行技术将数据传回终端。该项目设计为8路采集系统,将振弦传感器采集的信号通过物联网无线终端传输。结果表明,采用振弦传感器对铁塔应力进行测量可行。与传统应变片和光纤光栅测应力相比,振弦传感器能很好的监测铁塔在大风、覆冰、雨雪等恶劣自然条件下应力及温度。
In order to improve the stability of the power transmission line tower, the vibrating wire sensor is used to monitor the tower stress,and realizes remote wireless monitoring.Based on the whole tower modeling,finite element simulation, key parts of the tower stress concentration area is found out, and the vibrating wire sensors installed in key positions are concentrated.Data transmission using wireless transmission and electric optical power fiber ground communication （OPGW） combined, multi-hop broadband mesh networking, directional antenna and multi channel parallel technology to transmit the data back to terminal.The project is eight way acquisition system, the signal of vibrating wire sensor acquisition transferring by wireless transmission terminal.The results show that the use of vibrating wire sensors to measure stress the tower is feasible.Compared with conventional strain gauges and fiber grating stress ,the project can well monitor the tower in high winds, cing, sleet and other harsh natural conditions of stress and temperature.
出处
《电力电子技术》
CSCD
北大核心
2015年第10期58-61,共4页
Power Electronics
基金
国家863计划重大专项(2011AA05A120)~~
关键词
无线传输
振弦传感器
输变电铁塔
wireless transmission
vibrating wire sensors
electricity transmission tower
