光纤Bragg光栅传感器在变压器油温检测中的应用  

Application of FBG sensor in transformer oil temperature monitoring

作　　者：徐智超[1] 赵振刚[1] 李英娜[1] 段朝磊[1] 张欣[1] 李川[1] 

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650500

出　　处：《传感器与微系统》2016年第4期151-153,共3页Transducer and Microsystem Technologies

摘　　要：油浸式变压器中油温的高低是决定电气设备绝缘老化速度快慢的重要因素。分析油浸式变压器内部的温度场分布特性,对变压器内部油温传感器的布设位置进行优化,根据光纤Bragg光栅(FBG)中心波长随温度变化而变化的特性实现对油浸式变压器油温的测量。以型号为S13—12500/35的油浸式变压器为试验对象,测得变压器以1倍功率运行时,变压器的上、中、下层油温度分别为63,52,40℃,上、中、下层的油温梯度差约为10℃。In oil-filled transformer,oil temperature is an important factor in determining speed of insulation aging of electrical equipment. By analyzing the temperature field distribution of oil-filled transformer,layout position of optical fiber temperature sensor which inside the transformer is optimized. Center wavelength of fiber Bragg grating（ FBG） changes with temperature change,and according to this feature,realize oil temperature measurement of oilimmersed transformer. S13—12500 /35 oil-immersed transformers is used as test subject,when transformer is running at double power,oil temperatures of transformer in top,middle,and lower layers are 63,52,40 ℃,and oil temperature gradient difference is about 10 ℃.

关 键 词：光纤BRAGG光栅 变压器内部温度 温度场仿真 

分 类 号：TP212.9[自动化与计算机技术—检测技术与自动化装置]