摘要
根据光纤复合架空地线(optical fiber composite overhead ground wire,OPGW)的结构构成特征,提出了基于应变分析监测光纤复合架空地线覆冰荷载的方法。建立了光纤温度、应变与OPGW覆冰厚度的之间关系的理论模型。研究分析了OPGW的应力、温度与其内部光纤的温度、应变之间的关系;试制了基于布里渊光时域反射仪的覆冰监测系统,搭建了仿真实验平台,验证了本文覆冰监测理论模型的准确性和适用性。将该方法应用于实际线路,通过对比其他覆冰监测数据验证了基于应变分析的光纤OPGW覆冰荷载监测方法的可行性和实用性。
According to the structural characteristics of optical fiber composite overhead ground wire（ OPGW）,a method of OPGW icing load monitoring based on strain analysis is proposed. A theoretical model of OPGW icing loading monitoring is established which based on the relationship between monitoring temperature,strain of optical fiber and icing thickness. The relationship between the stress and temperature of OPGW and the temperature and strain of the optical fiber is analyzed. An icing monitoring system based on Brillouin optical time domain reflectometer is developed and simulation platforms are built. The accuracy and applicability of the theoretical model of icing monitoring are verified by simulation. This method is applied to the actual transmission line,it proves the feasibility and practicability of OPGW icing load monitoring method which bases on strain analysis by comparing the data with other icing monitoring data.
出处
《南方电网技术》
北大核心
2016年第11期52-58,共7页
Southern Power System Technology
基金
南方电网公司科技项目(K-GX2013-029)~~
关键词
光纤复合架空地线
应力
应变
温度
覆冰
optical fiber composite overhead ground wire（OPGW）
stress
strain
temperature
icing
