电力电缆护套环流磁光效应传感器仿真设计  

Simulation Design of Circulating Magneto-Optical Effect Sensor for Power Cable Sheath

作　　者：江天炎 刘翔 毕茂强 陈曦 唐博 曾帅 JIANG Tianyan;LIU Xiang;BI Maoqiang;CHEN Xi;TANG Bo;ZENG Shuai(School of Electrical and Electronic Engineering,Chongqing University of Technology,Chongqing 400054,China)

机构地区：[1]重庆理工大学电气与电子工程学院,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2020年第3期158-164,共7页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51607019);重庆市教育委员会科学技术研究项目(KJ1709200)。

摘　　要：对电力电缆护套环流进行监测在电力电缆的安全稳定运行方面有着重要作用。为此,提出了一种基于法拉第磁光效应的光纤传感器,该传感器通过检测电流所引起的周围磁场的变化来测量电力电缆护套环流。根据光纤传感器原理设计了环型、双螺线管型、U型螺线管型3种磁光效应传感器传感头结构,采用ANSYS仿真软件对其进行磁场仿真研究。结果表明:闭合环路积分结果近似相等,导线和光路之间的相对位置改变并不影响检测结果。双螺线管型与U形螺线管型的法拉第旋转角远大于环型,设计的螺线管型与U形螺线管型传感头相较于环型传感头的灵敏度大大提高。Monitoring the circulating current of power cable sheath plays an important role in the safe and stable operation of power cable.In this paper,an optical fiber sensor based on Faraday magnetooptic effect is proposed.The sensor measures the circumfluence of power cable sheath by detecting the change of magnetic field around the sheath caused by current.According to the principle of optical fiber sensor,three kinds of magneto-optic effect sensor head structures,ring,double solenoid and U solenoid,are designed.The magnetic field is simulated by ANSYS simulation software.The results show that the integral results of the closed loop are approximately equal,and the change of the relative position between the conductor and the optical path does not affect the detection results.The Faraday rotation angle of thetwin-solenoid and U-solenoid is much larger than that of ring.The sensitivity of the designed solenoid type and U-type solenoid type sensor head is greatly improved compared with that of the ring type sensor head.

关 键 词：电力电缆 护套环流 磁光效应 传感器 灵敏度 

分 类 号：TM853[电气工程—高电压与绝缘技术]