| 引用本文: | 丛浩熹,李庆民,齐 波,李成榕,刘有为,肖 燕.基于红外传感的GIS隔离开关触头温度在线监测技术研究[J].电力自动化设备,2014,34(3): |
| CONG Haoxi,LI Qingmin,QI Bo,LI Chengrong,LIU Youwei,XIAO Yan.Online GIS switch contact temperature monitoring based on IR sensing[J].Electric Power Automation Equipment,2014,34(3): |
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| 基于红外传感的GIS隔离开关触头温度在线监测技术研究 |
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丛浩熹1,2, 李庆民2,3, 齐 波2,3, 李成榕2,3, 刘有为4, 肖 燕4
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1.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，山东 济南 250061;2.华北电力大学 新能源电力系统国家重点实验室，北京 102206;3.华北电力大学 高电压与电磁兼容北京市重点实验室，北京 102206;4.中国电力科学研究院，北京 100192
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| 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。 |
| 关键词: GIS 红外传感 开关 触头 温度 监测 |
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| 基金项目:国家高技术研究发展计划（８６３计划）项目（２０１１ＡＡ０５Ａ１２１）；国家自然科学基金资助项目（５１２７７０６１） |
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| Online GIS switch contact temperature monitoring based on IR sensing |
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CONG Haoxi1,2, LI Qingmin2,3, QI Bo2,3, LI Chengrong2,3, LIU Youwei4, XIAO Yan4
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1.Shandong Provincial Key Laboratory of UHV Transmission Technology and Gas Discharge Physics，School of Electrical Engineering，Shandong University，Ji’nan 250061，China;2.State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources，North China Electric Power University，Beijing 102206，China;3.Beijing Key Laboratory of High Voltage and EMC，North China Electric Power University，Beijing 102206，China;4.China Electric Power Research Institute，Beijing 100192，China
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| Abstract: |
| According to the structural characteristics of the disconnecting switches in GIS equipments，an online contact temperature monitoring method based on IR（Infra-Red） sensing is proposed. Highly emissive coating is spread on the contact surface to enhance its emissivity and the emissivity of infrared temperature sensor is adjusted to compensate the absorption effect of SF6. A GIS experiment platform is established and the influences of SF6 concentration，IR filter and environmental temperature on IR sensing are researched. Experimental results show that，the indication of IR sensor reduces along with the increase of SF6 concentration，which could be compensated by lowering the emissivity of sensor. An online GIS contacts temperature monitoring system is designed based on the proposed method. |
| Key words: GIS IR sensing switches contact temperature monitoring |
