输电线路光纤复合地线覆冰状态监测方法研究

摘要

文中为解决现有输电线路覆冰状态监测系统需要现场电源, 易受电磁干扰, 不能分布式测量, 使用寿命短等缺点, 开发基于分布式光纤传感技术的输电线路覆冰在线监测方法. 通过选取光纤复合地线动张力的变化值作为覆冰状态的相关影响因子, 进行回归分析, 推到覆冰状态回归分析模型, 实现对光纤复合地线覆冰状态的监测.%In order to overcome the drawbacks of the existing icing-monitoring systems, such as the requirement for field power, the sensitivity to electromagnetic interference(EMI), the unavailability of distribution measurement and a short lifespan, an on-line monitoring method for transmission line icing based on distributed optical fiber sensing technology was constructed. Through the selection of optical fiber composite ground wire tension changes value as the icing of the impact factor, regres-sion analysis, pushed to the icing regression analysis model to realize the monitoring of optical fiber composite ground wire is covered with ice.