傅氏算法在微机保护应用中的探讨  

Discussion on Application of Fourier Algorithm in Microcomputer Protection

作　　者：朱桂英[1] 龚乐年[1] 

机构地区：[1]东南大学电气工程系,南京210096

出　　处：《电力系统及其自动化学报》2005年第4期41-43,93,共4页Proceedings of the CSU-EPSA

摘　　要：傅氏算法由于其良好的滤波性能在电力系统微机保护中得到了广泛的应用。但从近几年发表的相关傅氏算法的文献来看,很多文章中关于信号相量的实部和虚部表达式有错误。这里通过详细的数学推导,给出了在不同数学模型下信号相量实部和虚部的具体表达式,并讨论了各种错误在微机保护应用中带来的问题。Fourier algorithm has been widely applied to the microcomputer protection. However, as to the expressions of the real or image parts of the phasor, there are many problems in the relevant documents published in recent years. After detailed analysis,the correct expressions are formulated and what the false expressions will bring about to the microcomputer protection is discussed.

关 键 词：傅氏算法 相量表示 微机保护 

分 类 号：TM711[电气工程—电力系统及自动化]