一种提高消除衰减非周期分量响应速度的交流采样数据修正法  

An approach to raise the response speed on eliminating non-period AC sampling components

作　　者：方刚[1] 高仕斌[1] 林国松[1] 杜晟[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《电力系统保护与控制》2009年第20期61-64,共4页Power System Protection and Control

摘　　要：利用交流采样数据修正法处理含有衰减非周期分量的故障信号,并结合DFT对修正后的数据进行滤波,对滤波的结果进行了仿真分析,验证了交流采样数据修正法处理衰减非周期分量的有效性。最后对交流采样数据修正法处理数据的响应速度作了分析,提出了改进方法并对改进后的算法进行仿真,仿真结果证明了改进后算法的可行性。An approach based on modifying the AC sampling data is used to deal with the fault signal with decaying DC components. Using DFT to filter the revised data, the algorithm is proved effectively by the result of simulation. Finally, on the basis of analyzing response speed of the approach, a new method is proposed which is proved feasibly by the result of simulation.

关 键 词：非周期分量 交流采样 DFT 

分 类 号：TM755[电气工程—电力系统及自动化]