基于抛物线法和光纤传感技术的架空输电线覆冰厚度监测  

Ice monitoring on overhead power transmission lines with parabola method and optical fiber sensing technology

作　　者：李路明[1] 许鹏[2] 张治国[2] 胡建国[3] 张莉芳[3] 郭任重 

机构地区：[1]江西省电力公司信息通信中心,南昌330029 [2]北京邮电大学信息光子学与光通信国家重点实验室,北京100876 [3]江西省电力公司柘林水电厂,江西九江332000 [4]江西省九江市电力公司信息通信中心,江西九江332000

出　　处：《中国科技论文》2013年第7期688-691,共4页China Sciencepaper

基　　金：江西省电力公司重大课题专项资助项目(200950801;200950802)

摘　　要：针对架空输电线覆冰厚度的无源在线监测难题,基于抛物线法分析并建立了架空输电线覆冰厚度与轴向应变的理论关系模型,提出并实验验证了一种基于光纤布拉格光栅(fiber Bragg grating,FBG)应变传感器的架空输电线覆冰厚度监测方案。实验结果显示,在30mm等效覆冰厚度载荷范围内,该方案最大测量误差为2mm。该方案还可实现远距离无源化监测,具有安装简单、应用灵活等特点,是一种极具应用潜力的架空输电线覆冰厚度监测方案。Abstract.. A theoretical model of the relationship between depth of ice and axial micro-strain on overhead transmission lines is es- tablished and analyzed based on the parabola method. Furthermore, a scheme for ice monitoring on overhead transmission lines based on FBG sensors is proposed. A maximum deviation of 2 mm is experimentally verified for this scheme. Remote passive mo- nitoring can be achieved by the proposed scheme which is featured by simple installation and flexible application.

关 键 词：抛物线法 FBG传感器 架空输电线 覆冰 实时监测 

分 类 号：TM755[电气工程—电力系统及自动化]