2018年 第12期仪表技术与传感器Instrument Technique and Sensor 2018 No.12
基金项目:国网辽宁省电力有限公司科技项目(2017YF -15)
收稿日期:2017-10-25基于无源无线传感技术的电力电缆测温装置
姜 华1,李锡忠1,秦孝来1,王 峥2,许爱军3,李 良4
(1.国网辽宁省电力公司营口供电公司,辽宁营口 115000;2.北京智芯微电子科技有限公司(北京市电力高可靠性集成电路设计工程技术研究中心),北京 100192;3.深圳市金瑞铭科技有限公司,广东深圳 518000;
4.北京智芯微电子科技有限公司(国家电网公司重点实验室二电力芯片设计分析实验室),北京 100192) 摘要:温度是电缆运行状态的关键参数,对电缆温度进行实时监测可有效防止事故发生,保障电力系统安全稳定运行三采用超高频RFID 温度传感芯片研制一种基于无源无线传感技术的电力电缆测温装置,装置由基底二天线二RFID 无源测温模块二固定基板及加固模块构成,将装置嵌入电力电缆内部来实现电缆测温三该装置的标签天线在920MHz 工作频率下在金属表面可表现其优良性能,并且具有低剖面二小尺寸二低成本的优势三该电缆测温装置能够长期二安全二有效监测电力电缆的温度变化,避免因电力电缆温度过高引发的安全隐患,为电力系统的安全运行提供技术保障三
关键词:无源无线传感;测温装置;电力电缆;超高频;射频识别;温度传感芯片
中图分类号:TP93 文献标识码:A 文章编号:1002-1841(2018)12-0058-05
Power Cable Measured Device Based on Passive Wireless Sensor Technology
JIANG Hua 1,LI Xi-zhong 1,QIN Xiao-lai 1,WANG Zheng 2,XU Ai-jun 3,LI Liang 4(1.Yingkou Electrical Power Company ,Yingkou 115000,China ;2.Beijing Engineering Research Center of
High-reliability IC with Power Industrial Grade ,Beijing Smart-Chip Microelectronics Technology Co.,Ltd.Beijing 100192,China ;3.Shenzhen Genrace Technology Co.,Ltd.,Shenzhen 518000,China ;
4.State Grid Key Laboratory of Power Industrial Chip Design and Analysis Technology ,
Beijing Smart-Chip Microelectronics Technology Co.,Ltd.,Beijing 100192,China )
Abstract :Temperature is the key parameter of the running status of the cable.Real-time monitoring of the cable temperature can effectively prevent accidents and ensure the safe and stable operation of the power system.A power cable temperature meas-urement device based on passive wireless sensor technology was designed with UHF RFID temperature sensor chip.The device was composed of base,antenna,RFID passive temperature measurement module,fixed base board and reinforcement module.It was embedded in the power cable to achieve cable temperature measurement.The designed tag antenna of the device can work at the 920MHz and was able to maintain a good performance on the metal surface.What's more,it had some advantages such as planar structure,small size and low cost.The cable temperature measurement device can monitor the temperature change of power cables for a long time,safely and effectively,avoid safety troubles caused by over-temperature of power cable,and provide technical sup-port for the safe operation of power system.
Keywords :passive wireless sensor technology;temperature measurement device;power cable;UHF RFID;radio frequency identi-fication;temperature sensor chip 0 引言
随着国家经济的发展,电力工业正趋向于大电
网二超高压二自动化的方向发展,是促进经济发展二推
进科技进步二提高人民物质文化生活水平的物质技术
保障和国家现代化建设的重要标志三但另一方面,随
着电力工业的发展,电缆负载的电压和电流均不断提
高,必然导致电缆运行时温升向极限温度接近,一旦
发生事故便会对国家经济造成巨大损失三所以,如何采用有效的方式监测电缆在工作和运行过程中的温度变化状况,是保障电力系统安全稳定运行的重要问题,也对电力应用企业的生产和居民生活具有非常重要的意义三目前,针对电力电缆的温度监测装置已是多种多样,有依托单片机为开发平台来建设监测系统的方案[1-4],也有依据光纤散射技术来测温[5-9],比较成熟的技术有分布式光纤测温[9],其基于拉曼散射的分布