风速对光纤复合相线覆冰监测有效性分析  

Analysis of Wind Speed on OPPC Icing Monitoring Effectiveness

作　　者：向晨诗 XIANG Chenshi(College of Electrical Engineering&New Energy,Three Gorges University,Yichang,Hubei 443002,China)

机构地区：[1]三峡大学电气与新能源学院,湖北宜昌443002

出　　处：《东北电力技术》2024年第5期26-33,共8页Northeast Electric Power Technology

摘　　要：为分析环境温度呈正弦函数变化时光纤复合相线覆冰时温度变化特性及风速对光纤复合相线覆冰监测有效性的影响,考虑风速影响建立环境温度呈正弦时变函数变化时光纤复合相线覆冰温度场模型,分析趋肤效应的焦耳热、风速、环境温度均值及波动幅值对光纤复合相线温度场的影响,研究了环境温度、风速、覆冰厚度与光纤复合相线覆冰与未覆冰时温差变化曲线及光纤复合相线温度滞后相位关系,定义了临界风速并给出基于光纤复合相线温度滞后相位的临界风速计算公式。研究表明,焦耳热对光纤复合相线温度影响较小,风速、覆冰厚度对光纤复合相线温度滞后相位影响较大,环境温度均值与波动幅值对光纤复合相线温度滞后相位影响较小但波动幅值对光纤复合相线温差影响较大。In order to analyze the effectiveness of wind speed on the monitoring of OPPC(optical phase conductor)icing,it establishes the temperature field model of OPPC icing when the environmental temperature changes with sinusoidal time-varying function.It analyzes the influence of joule heat,wind speed,environmental temperature mean value and fluctuation amplitude on the temperature field of OPPC.It researches the relationship between environmental temperature,wind speed,icing thickness and the temperature difference curve of OPPC with and without icing and the OPPC temperature lag phase.It defines the critical wind speed and gives the calculation formula of the critical wind speed based on the temperature lag phase of OPPC.The results show that Joule heat has little effect on the temperature of OPPC.The wind speed and ice thickness have influence on the temperature lag phase of the composite phase line.The mean value and fluctuation amplitude of environment temperature have little effect on the lag phase of fiber composite phase line temperature,but the fluctuation amplitude has a effect on the temperature difference of fiber composite phase line.

关 键 词：光纤 焦耳热 环境温度 温差 滞后相位 

分 类 号：TM755[电气工程—电力系统及自动化]