基于光纤光栅传感的低功耗小型化电网智能感知系统

文章针对监测装置现场取电难的问题,为智能电网盲区和多事态区监测提供解决方案。本研究设计并实现了一种可用于电网智能感知的光纤光栅传感系统,由多参量的光纤光栅传感器和解调仪组成,该解调仪采用可调谐激光器作激发光源,以20×70×90 mm的微型体积,实现2 W的低功耗。系统解调仪最多可容纳4通道光纤光栅传感器,重量小于500 g,分辨率为0.5 pm,精度±2 pm,测量频率可达100 Hz,光信息可通过电力通讯光缆传输,满足多数电网设备监测需求。该传感系统功耗低、体积小,可实现多参量监测,完全满足智能电网现场供电和通讯难、事态多发的监测需求。

Low Power Consumption Miniaturized Power Grid Intelligent Sensing System Based on Fiber Bragg Grating Sensing

Aiming at the problem of difficult power supply of the monitoring device,this paper provides a solution for the blind area and eventful area monitoring of smart grid.A fiber grating sensing system which can be used for intelligent sensing of power grid is designed and implemented,which is mainly composed of a multiparameter fiber grating sensor and a demodulator.The demodulator uses a tunable laser as the excitation light source to achieve a low power consumption of 2 W and a 20 mm×70 mm×90 mm miniature volume.The system demodulator can hold up to 4 channels of fiber grating sensors,the weight is controlled within 500 g,the resolution is 0.5 pm,the accuracy is±2 pm,and the measuring frequency can reach 100 Hz.Optical information can be transmitted through power communication cables.The proposed system can meet the monitoring needs of most power grid equipment,which has low power consumption and small volume,and can realize multiparameter monitoring,and can fully meet the needs of power supply and communication in smart grid.