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Design and Experiment of FBG-Based Icing Monitoring on Overhead Transmission Lines with an Improvement Trial for Windy Weather

机译:基于FBG的架空输电线路覆冰监测的设计与试验及改进试验。

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摘要

A scheme for monitoring icing on overhead transmission lines with fiber Bragg grating (FBG) strain sensors is designed and evaluated both theoretically and experimentally. The influences of temperature and wind are considered. The results of field experiments using simulated ice loading on windless days indicate that the scheme is capable of monitoring the icing thickness within 0–30 mm with an accuracy of ±1 mm, a load cell error of 0.0308v, a repeatability error of 0.3328v and a hysteresis error is 0.026%. To improve the measurement during windy weather, a correction factor is added to the effective gravity acceleration, and the absolute FBG strain is replaced by its statistical average.
机译:设计并使用光纤布拉格光栅(FBG)应变传感器监测架空输电线路结冰的方案,并在理论上和实验上进行了评估。考虑温度和风的影响。使用无风天模拟冰负荷的野外实验结果表明,该方案能够监测0–30 mm范围内的结冰厚度,精度为±1 mm,称重传感器误差为0.0308v,可重复性误差为0.3328v磁滞误差为0.026%。为了改善大风天气下的测量,将校正因子添加到有效重力加速度中,并将绝对FBG应变替换为其统计平均值。

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