一种多个异步采样的暂态同源录波文件分析方法  

Analysis Method of Multiple Asynchron Sample Transient Homology Waves

作　　者：江晓亮[1] 付国新[1] 王正 JIANG Xiaoliang;FU Guoxin;WANG Zheng(Guodian Nanjing Automation Co.,Ltd.,Nanjing 210003,China)

机构地区：[1]国电南京自动化股份有限公司,江苏南京210003

出　　处：《电工技术》2023年第6期94-96,共3页Electric Engineering

摘　　要：提出了一种多个异步采样的暂态同源录波文件分析方法,运用电流突变量、牛顿二阶插值、多级FIR滤波和最小二乘曲线拟合等信号处理方法,实现对多个异步采样的同源波形进行波形对齐和比对分析,为继电保护装置采样回路的实时监测、电力系统隐患预判、智能变电站运维检修效率提高提供了基础分析数据,保证了电网的安全稳定运行。An analysis method of multiple asynchron sample transient homology waves uses multiple signal processing methods of the current sudden variable,Newton Second Order Interpolating,multilayer FIR filtering,least squares curve-fitting is proposed.The waveform alignment and comparison analysis of multiple asynchronously sampled homologous waveforms is realized.This method provides basic analysis data for real-time monitoring of sampling loops of relay protection devices,prediction of hidden dangers of power system,and improvement of operation and maintenance efficiency of intelligent substations,so as to ensure the safe and stable operation of the power grid.

关 键 词：暂态同源波形 牛顿二阶插值 多级FIR滤波 最小二乘曲线拟合 

分 类 号：TM732[电气工程—电力系统及自动化]