摘要
针对以电磁式电流互感器为核心的传统电流检测方式存在电流互感器安装与维护困难、占用空间大、精度低等问题,设计了一套以Rogowski线圈为传感头的井下智能变电站电流检测系统。详细介绍了积分还原电路、自适应放大电路的设计,并进行了系统稳定性分析及Rogowski线圈测试、线性度测试、频率特性测试和温度特性测试。测试结果表明,该系统具有较高的精度和良好的线性度。
In view of problems of traditional current detection method which took electromagnetic current transformer as the core that it was difficult to install and maintain,took up a lot of space and has low precision,a current detection system of underground intelligent substation with Rogowski coil as sensing head was designed.Design of integral reduction circuit and adaptive amplifier circuit was introduced,and the system stability analysis as well as Rogowski coil test,linearity test,frequency characteristic test and temperature characteristic test were carried out.Test results show that the system has high precision and good linearity.
作者
陈连玉
高晴
CHEN Lianyu;GAO Qing(School of Information&Electrical Engineering,Jiangsu University of Technology,Changzhou 213001,China;Tiandi(Changzhou)Automation Co.,Ltd.,Changzhou 213015,China)
出处
《工矿自动化》
北大核心
2018年第9期72-76,共5页
Journal Of Mine Automation
基金
江苏省产学研前瞻性联合研究项目(BY2016030-19)
关键词
井下智能变电站
电流检测
ROGOWSKI线圈
线性度
频率特性
温度特性
underground intelligent substation
current detection
Rogowski coil
linearity
frequency characteristic
temperature characteristic
作者简介
陈连玉(1970-),男,江苏徐州人,副教授,工程师,研究方向为电力系统自动化、电力检测技术,E-mail:chenly4254@sina.com。
