基于光纤光栅的输电导线振动频率在线监测系统  

Online Monitoring System for Vibration Frequency of Transmission Wires Based on Fiber Bragg Grating

作　　者：代红波 DAI Hongbo(Power China Kunming Engineering Corporation Limited,Kunming 650051,China;Yunnan Water Resources and Hydropower Intelligent Construction Engineering Research Center,Kunming 650051,China)

机构地区：[1]中国电建集团昆明勘测设计研究院有限公司,云南昆明650051 [2]云南省水利水电智能建造工程研究中心,云南昆明650051

出　　处：《云南水力发电》2025年第1期39-42,共4页Yunnan Water Power

基　　金：2023年云南省工程研究中心创新能力建设和提升专项资助项目(DJ-HXGG-2022-03)。

摘　　要：架空输电导线受微风振动形式最为普遍,其在设计时风荷载是需要考虑的主要因素之一。文章利用光纤光栅具有抗电磁干扰强的特点,将光纤光栅应变计用于测量架空导线的振动监测。光纤光栅应变计将导线的振动信号转变为光的波长变化信号,光信号经光纤传输到OPM(optical performance monitor),OPM将采集的数据传输到单片机进行频谱分析,提取导线振动频率,单片机控制GSM模块将相关数据发到上位机,进行数据分析与处理。实验结果表明,系统能够有效监测导线振动频率,精度达到0.01 Hz。Overhead transmission lines are most commonly subjected to wind induced vibration,and wind load is one of the main factors to be considered in their design.The paper utilizes the strong electromagnetic interference resistance of fiber Bragg gratings to use fiber Bragg grating strain gauges for measuring the vibration monitoring of overhead conductors.Fiber Bragg Grating Strain Gauge converts the vibration signal of the wire into a wavelength change signal of light,which is transmitted to OPM(Optical Performance Monitor)through optical fibers.OPM transmits the collected data to the microcontroller for spectrum analysis and extracts the vibration frequency of the wire.The microcontroller controls the GSM module to send relevant data to the upper computer for data analysis and processing.The experimental results show that the system can effectively monitor the vibration frequency of the wire,with an accuracy of 0.01 Hz.

关 键 词：光纤光栅 架空导线振动 频谱分析 输电导线 

分 类 号：TV734.3[水利工程—水利水电工程]