基于差分滤波的改进傅氏算法  

Based on the Differential Filtering Improved Fourier Algorithm

作　　者：李伟中[1] 杨丰萍[1] 

机构地区：[1]华东交通大学电气与电子工程学院,江西南昌330013

出　　处：《江西科学》2012年第2期204-206,共3页Jiangxi Science

摘　　要：讲述微机保护中傅氏算法的原理及优缺点,并提出基于差分滤波的改进傅氏算法,通过Matlab软件编程仿真,得到结果比较分析,证明该改进算法在滤波衰减直流分量上的正确性和有效性,大大提高了在电力系统微机保护中对故障信号的判断,从而做出快速、准确地动作,保护电力设备,防止事故发生。Tell about the principle of fourier algorithm for microprocessor based protection and its advantages or disadvantages,put forward the improved Fourier algorithm improved based on difference Fourier filtering algorithm,through the software matlab programming and simulation,get results and comparative analysis of the simulation results,proved that the improved algorithm in filtering on decaying direct current component of validity and availability,greatly improved in power system of fault signal microcomputer protection,thus make the judgment of quickly and accurately action,protect the power equipment,prevent accidents.

关 键 词：傅氏算法 微机保护 差分滤波 仿真 

分 类 号：TM77[电气工程—电力系统及自动化]