摘要
氧化锌避雷器作为电力输变电系统的一个核心保护设备,必须进行在线状态监测。文章在研究氧化锌避雷器常用的在线监测方法的基础上,提出了一种基于谐波分析法的新的氧化锌避雷器阻性电流提取方法。该方法采用准同步DFT谐波分析线性修正算法来实现氧化锌避雷器的阻性电流的测量。仿真实验和现场实验表明,该方法可行、有效,有极高的应用价值。
As a core protection device for power transmission system,metal oxide surge arresters must be monitored online.On the basis of studying the on-line monitoring methods commonly used in metal oxide surge arresters,this paper proposes a novel resistive current extraction method of metal oxide surge arresters based on harmonic analysis method.This method employs the quasi-synchronous DFT harmonic analysis linear correction algorithm to measure the resistive current of metal oxide surge arresters.The simulation experiment and on-site experiment show that this method is feasible,effective and has high application value.
作者
陈丹
傅中君
柳益君
白凤娥
赵小荣
Chen Dan;Fu Zhongjun;Liu Yijun;Bai Fenge;Zhao Xiaorong(School of Computer Engineering,Jiangsu University of Technology,Changzhou 213001,Jiangsu,China;Key Laboratory of Cloud Computing & Intelligent Information Processing of Changzhou City,Changzhou 213001,Jiangsu,China)
出处
《电测与仪表》
北大核心
2019年第13期117-122,共6页
Electrical Measurement & Instrumentation
基金
国家自然科学基金资助项目(61472166)
江苏省高校自然科学研究项目(15KJD510003)
关键词
氧化锌避雷器
阻性电流
谐波分析
仿真实验
metal oxide surge arresters
resistive current
harmonic analysis
simulation experiment
