基于Rogowski线圈的新型电压行波传感器  

Rogowski Coil Based Voltage Traveling Wave Sensor

作　　者：李泽文[1] 刘柏罕 范彩兄 熊毅[1] 彭翰川 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南省长沙市410076

出　　处：《电力系统自动化》2016年第9期94-99,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目(51577013;51377012);湖南省自然科学杰出青年基金资助项目(2015JJ1001);湖南省教育厅科学研究重点项目(14A002)~~

摘　　要：现有行波传感器的行波传变一致性较差,影响故障行波定位准确度。文中研究了一种基于Rogowski线圈原理的印制电路板(PCB)式电压行波传感器。给出了Rogowski线圈的高频工作特性,研究了PCB行波传感器的结构和工作原理,推导出了PCB行波传感器互感系数的计算方法,并分析了行波传感器的抗外磁场干扰机理,为有效检测行波信号提供了理论依据。该PCB行波传感器具有结构新颖、频带响应宽、一致性好、抗干扰能力强等优点。仿真和测试实验表明,PCB行波传感器能有效提高行波精确检测的一致性,可靠传变高频暂态行波信号。In order to solve the poor traveling consistency of existing traveling wave sensors that affects the accuracy of traveling wave location,aprinted circuit board（PCB）traveling wave sensor based on the principles of Rogowski coil is proposed.In this paper,the high frequency working characteristics of the Rogowski coil are given,and the structure and working principles of the PCB sensor are studied.And the formula for calculating the mutual inductance coefficient of the PCB sensor is deducted.The anti-interference mechanism of the external magnetic field is analysed to provide a theoretical basis for detecting the traveling wave effectively.The PCB traveling wave sensor has the advantages of novel structure,wide frequency response,good consistency,strong anti-interference ability,etc.The experiment results indicate that the PCB traveling sensor can improve the consistency of precise traveling wave detection effectively and deliver transient traveling wave signals of high frequency reliably.

关 键 词：故障定位 印制电路板(PCB) 行波传感器 高频传变特性 抗干扰 一致性 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TM55[自动化与计算机技术—控制科学与工程]