光纤传感技术在变压器状态检测中的应用研究

Study of optical fiber sensor technology applying in state dectecting of transformer

实现对变压器等电力系统关键设备的状态检测,迫切需要适合强电场环境的各种在线监测技术。简要介绍近年来兴起的相关光纤传感技术进展,重点描述适于变压器油温、绕组温度在线监测的光纤光栅温度传感系统;用于局放检测的光纤超声传感器;用于变压器油溶解性气体分析的光纤多种气体监测技术。最后给出了基于全光纤传感技术的变压器状态监测方案。

To detect state of key equipment of electricity power system such as transformer, it is necessary for having suitable measuring techniques on-line for the strong magnetic field environment. This paper briefly introduces the recent development related to optical fiber sensing technology ,and describes in detail about FBG temprature system for transformer hotpot measuring,fiber ultrasonic sensor for local discharging detecting, fiber multi-gas monitoring technology for dissolved gases analysis. Lastly a transformer state monitoring Solution based on all fiber sensing technology is presented.