基于光纤光栅的变压器绕组温度监测系统

Study on the FBG Monitoring Technology of Transformer Internal Temperature

针对传统测温方法对变压器绕组温度监测效果不很理想的问题,设计了基于光纤光栅的变压器绕组温度监测系统,分析了光纤光栅传感原理,并对监测系统进行了硬件和软件的设计,利用搭建的试验光路,对监测系统进行了测试,试验结果表明采用光纤光栅作为温度检测器件,能够对变压器绕组温度进行精确测量。

Aim at the problem that the effect of internal temperature monitoring of transformer winding by the traditional hygrometry is not very ideal,the temperature measuring system is designed based on FBG Monitoring Technology,on the basis of analysis of the FBG sensor, hardware and software which fiber Bragg grating sensor demodulation requirements are designed. System optical circuit is set up to test the monitoring system. The results show that the FBG temperature sensor can be an effective instrument to measure the internal temperature of the transformer with accuracy stability to the changes in temnerature.