基于红外传感的GIS隔离开关触头温度在线监测技术研究

发布时间：2018-05-18 01:27

本文选题：GIS + 红外传感　；参考：《电力自动化设备》2014年03期

【摘要】：为实现对触头温度的在线监测,针对GIS设备隔离开关的结构特点,提出了一种基于红外(IR)传感的适用于GIS设备触头温度在线监测的方法。因为金属导体表面发射率低,所以在金属导体触头表面涂敷高辐射涂料。针对SF6气体吸收红外光的影响,提出通过调节红外温度传感器的发射率来补偿SF6气体的吸收效应。建立了GIS试验平台,研究了SF6气体体积分数、红外滤光片和环境温度对红外测温的影响。实验结果表明,SF6气体体积分数的升高会导致红外温度传感器读数的下降,需要调低传感器的发射率进行补偿。最后根据所提方法设计了GIS设备触头温度在线监测系统。
[Abstract]:In order to realize the on-line monitoring of the contact temperature, according to the structural characteristics of the disconnector of GIS equipment, a method of on-line monitoring the contact temperature of GIS equipment based on IR sensor is proposed. Because the surface emissivity of the metal conductor is low, the surface of the metal conductor contact is coated with high radiation coating. Aiming at the effect of infrared light absorption by SF6 gas, it is proposed to compensate the absorption effect of SF6 gas by adjusting the emissivity of infrared temperature sensor. The effects of volume fraction of SF6 gas, infrared filter and ambient temperature on infrared temperature measurement were studied by using GIS test platform. The experimental results show that the increase of volume fraction of SF6 gas will lead to the decrease of infrared temperature sensor reading, which needs to be compensated by lowering the emissivity of the sensor. Finally, an online monitoring system for contact temperature of GIS equipment is designed according to the proposed method.
【作者单位】：山东大学电气工程学院山东省特高压输变电技术与气体放电重点实验室;华北电力大学新能源电力系统国家重点实验室;华北电力大学高电压与电磁兼容北京市重点实验室;中国电力科学研究院;
【基金】：国家高技术研究发展计划(863计划)项目(2011AA-05A121) 国家自然科学基金资助项目(51277061)~~
【分类号】：TM564.1;TN219

【参考文献】