电缆分布式光纤测温系统测量结果符合性的比对试验  

Validate Test for the Calculation Congruity of Distributed Temperature Sensing System

作　　者：张振鹏[1,2] 赵健康[2] 饶文彬[2] 蒙绍新[2] 刘松华[2] 

机构地区：[1]武汉大学电气工程学院,武汉430072 [2]中国电力科学研究院,武汉430074

出　　处：《高电压技术》2012年第6期1362-1367,共6页High Voltage Engineering

基　　金：国家电网公司科技项目(SG0904)~~

摘　　要：为验证应用在电缆线路上的分布式光纤测温系统(DTS)对电缆导体温度和动态载流量计算的符合性,实时测量了不同的敷设环境下电缆在施加相应的负荷电流时的导体温度,以此验证了DTS的导体温度和动态载流量计算符合性,并完成了隧道、直埋等典型敷设环境条件下的周期负荷、随机负荷电流等条件下验证试验研究。结果表明,比对试验方法可有效判断应用在电缆线路上的DTS的性能;有效验证DTS对电缆导体温度和动态载流量计算的符合性;提高DTS计算的精确性;提高DTS在电缆线路安全运行中应用的作用。The distributed temperature sensing {DTS） is widely used in power cable monitoring system. In order to validate the conductor temperature calculation and dynamic cable rating calculation, we presented the verification tests. These tests were carried out by the different installation and different loading. During these tests~ the real conductor temperature of cable was determined by special thermocouple and compared with conductor temperature calculation of DTS. Power cables were installed in trenches, ducts, and tunnels, and the cycle-loading or step alternative current was through the cable. Results show that the verification test is available for characters evaluation of the DTS system. The verification test can validate the conductor temperature calculation of DTS and dynamic cable rating calculation. The verification test can also improve the calculate accuracy of DTS.

关 键 词：分布式光纤测温 比对试验 DTS 电缆导体温度计算 动态载流量计算 计算符合性 电缆导体温度实测 

分 类 号：TM247[一般工业技术—材料科学与工程]