基于光纤传感技术的输电线路覆冰监测系统
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摘要
基于光纤传感技术设计了一个输电线路覆冰监测系统,解决了电子式传感器需要现场供电,容易受到电磁干扰的缺点。使用ANSYS软件对输电线路杆塔受力进行有限元分析,从而确定传感器的安装位置。研制了一种光纤Bragg光栅拉力传感器对导线覆冰进行监测,通过OPGW光缆把光信号传输到解调仪和工控机。并对拉力传感器进行标定实验,实验表明,光纤Bragg光栅拉力传感器的灵敏度为0.028 2 nm/k N,线性度为0.743%FS,迟滞误差为1.47%FS,并在实验室对所有光纤光栅传感器进行组网联调,观察覆冰监测系统光栅个数及波峰峰值。
In this paper,a transmission line ice monitoring system based on optical fiber sensing technology is designed to overcome the shortcoming that the electronic sensors need the on-site power supply and they are prone to electromagnetic interferences. The finite element analysis of the transmission line tower is conducted in ANSYS to determine the installation position of the sensor. A fiber Bragg grating tension sensor is developed to monitor the conductor icing,and the optical signal is transmitted to the demodulator and industrial computer through OPGW optical cable. The calibration experiment of tension sensor was carried out. The experiment shows that the sensitivity of fiber Bragg grating tension sensor is 0. 028 2 nm/k N,and the linearity is 0. 743% FS and the hysteresis error is1. 49% FS. In the laboratory,all FBG sensors were networked and tuned to observe the number of gratings and the peaks of the peaks in the ice-covering monitoring system.
In this paper,a transmission line ice monitoring system based on optical fiber sensing technology is designed to overcome the shortcoming that the electronic sensors need the on-site power supply and they are prone to electromagnetic interferences. The finite element analysis of the transmission line tower is conducted in ANSYS to determine the installation position of the sensor. A fiber Bragg grating tension sensor is developed to monitor the conductor icing,and the optical signal is transmitted to the demodulator and industrial computer through OPGW optical cable. The calibration experiment of tension sensor was carried out. The experiment shows that the sensitivity of fiber Bragg grating tension sensor is 0. 028 2 nm/k N,and the linearity is 0. 743% FS and the hysteresis error is1. 49% FS. In the laboratory,all FBG sensors were networked and tuned to observe the number of gratings and the peaks of the peaks in the ice-covering monitoring system.
引文
[1]蒋兴良,易辉.输电线路覆冰及防护[M].北京:中国电力出版社,2002.
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[5]尹世锋,卢勇,王闸,等.基于CACA-WNN的恶劣气候条件下架空输电线路覆冰厚度的预测[J].电力科学与工程,2012,28(11):28-31.
[6]刑毅,曾奕,盛戈皞,等.基于力学测量的架空输电线路覆冰监测系统[J].电力系统自动化,2008,32(23):81-85.
[7]徐青松,季洪献,王孟龙.架空输电线路覆冰实时监测方案探讨[J].高电压技术,2007,33(7):206-209.
[8]罗健斌,郝艳捧,叶青,等.利用光纤光栅传感器测量输电线路覆冰荷载试验[J].高电压技术,2014,40(2):405-412.
[9]吕健双,李健.特高压输电线路覆冰断线张力计算与分析[J].电力科学与工程,2013,29(8):10-15.
[10]胡练华,赵振刚,张长胜,等.光纤Bragg光栅拉力传感器不确定度标定研究[J].光学技术,2017,43(1):22-24.
[11]蒋建.输电线路覆冰监测光纤光栅拉力和倾角传感器[D].北京:华北电力大学,2011.
[12]李川,李英娜,万舟,等.光纤传感技术[M].北京:科学出版社,2012.
[13]王宏亮,宋娟,李明,等.降低迟滞性误差的光纤光栅传感器的研究[J].光电技术运用,2010,25(4):50-53.
[2]李立浧,阳林,郝艳捧.架空输电线路覆冰在线监测技术评述[J].电网技术,2012,36(2):237-242.
[3]黄新波,刘家兵,蔡伟,等.电力架空线路覆冰雪的国内外研究现状[J].电网技术,2008,32(4):23-28.
[4]吕玉祥,占子飞,马维青,等.输电线路覆冰在线监测系统的设计和应用[J].电网技术,2010,34,(10):196-200.
[5]尹世锋,卢勇,王闸,等.基于CACA-WNN的恶劣气候条件下架空输电线路覆冰厚度的预测[J].电力科学与工程,2012,28(11):28-31.
[6]刑毅,曾奕,盛戈皞,等.基于力学测量的架空输电线路覆冰监测系统[J].电力系统自动化,2008,32(23):81-85.
[7]徐青松,季洪献,王孟龙.架空输电线路覆冰实时监测方案探讨[J].高电压技术,2007,33(7):206-209.
[8]罗健斌,郝艳捧,叶青,等.利用光纤光栅传感器测量输电线路覆冰荷载试验[J].高电压技术,2014,40(2):405-412.
[9]吕健双,李健.特高压输电线路覆冰断线张力计算与分析[J].电力科学与工程,2013,29(8):10-15.
[10]胡练华,赵振刚,张长胜,等.光纤Bragg光栅拉力传感器不确定度标定研究[J].光学技术,2017,43(1):22-24.
[11]蒋建.输电线路覆冰监测光纤光栅拉力和倾角传感器[D].北京:华北电力大学,2011.
[12]李川,李英娜,万舟,等.光纤传感技术[M].北京:科学出版社,2012.
[13]王宏亮,宋娟,李明,等.降低迟滞性误差的光纤光栅传感器的研究[J].光电技术运用,2010,25(4):50-53.