基于分数阶巴特沃斯滤波器的1000kV特高压远传式SF_(6)密度继电器  

Remote Transmission SF_(6) Density Relay in 1000 kV UHV Based on Fractional-Order Butterworth Filter

作　　者：刘畅 祖树涛 李光 梁利辉 郭帅 李强 LIU Chang;ZU Shutao;LI Guang;LIANG Lihui;GUO Shuai;LI Qiang(State Grid Hebei Extra High Voltage Company,Shijiazhuang Hebei 050051,China)

机构地区：[1]国网河北省电力有限公司超高压分公司,河北石家庄050051

出　　处：《电子器件》2023年第1期172-178,共7页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(51177048)。

摘　　要：由于1000kV特高压设备所处电磁环境复杂,采用现有技术的远传式SF_(6)密度继电器抗干扰能力差,无法将设备信息准确远传,严重影响特高压设备在线监测。为解决这一问题,利用分数阶巴特沃斯滤波器设计了一种新型抗干扰远传式SF_(6)密度继电器。通过500kV及1000kV两类组合电器在三种情况下抗干扰试验、极端特殊情况下的电磁干扰试验,表明采用分数阶巴特沃斯滤波器的远传式SF_(6)密度继电器具有良好的最大抑制倍数,验证了本文方法的有效性、全面性。Due to the complex electromagnetic environment of 1000 kV UHV equipment,the anti-interference ability of the remote transmission SF_(6) density relay using the existing technology is poor.Therefore,the equipment information can not be accurately transmit-ted,which seriously affects the on-line monitoring of UHV equipment.In order to solve this problem,a new anti-interference remote transmission SF_(6) density relay is designed by using fractional Butterworth filter.Results of the anti-interference test of 500 kV and 1000 kV combined electrical appliances in three cases and the electromagnetic interference test in extreme special cases show that the remote SF_(6) density relay using fractional Butterworth filter has a good maximum suppression multiple,verifying the effectiveness and comprehensiveness of this method.

关 键 词：特高压技术 SF_(6)密度继电器 在线监测 高抗干扰 分数阶巴特沃斯滤波器 

分 类 号：TM51[电气工程—电器]