摘要
为解决输电导线温度实时在线测量误差大的问题,并保障线路运行安全和提高线路输送效率,将光纤光栅测温技术用于输电线的在线测温。通过在单根光纤上串联多个不同中心波长的光纤光栅组成准分布式传感阵列,不同中心波长的光纤光栅与待测结构的光纤上各测量点相对应,当反射光经传输光纤从测量场返回时,波长解调设备会探测到波长改变量,并将其转化成电信号,从而可得到待测结构中各点的温度。在实际应用中,实现了对线路导线温度的实时监测,为运行人员提供了科学的测量数据,提高了线路的输送能力。
To solve the large errors of real-time temperature measurements used in distribution network power system and to improve the safe and reliable operation of transmission line, the temperature measurement technology is applied to the transmission lines by the optical fiber grating sense system.The fiber grating with the different kinds of central wavelength is formed the distributed sensor array in series and is corresponded to the untested optical fibers.When the reflected lights return from the detected field, the wavelength modem would detect the change and translate it into electronic signal which can get temperatures from the different points in the structure to be tested.In practical use, the line temperature is monitored real-time, it provides the system maintainers and increases the transit capacity.
出处
《电力电子技术》
CSCD
北大核心
2017年第10期92-94,共3页
Power Electronics
基金
国网新疆电力公司科技项目(5230DK15009L)~~
关键词
配网线路
光纤光栅
在线测温
distribution lines
optical fiber grating
real-time temperature measurement
