一种不受衰减非周期分量影响的最小二乘滤波算法  

AN EFFICIENT METHOD TO ELIMINATE THE EFFECTS OF DECAYING DC COMPONENT ON THE LEAST SQUARE ALGORITHM

作　　者：周大敏[1] 龙燕[1] 

机构地区：[1]重庆后勤工程学院

出　　处：《电网技术》1999年第3期31-33,37,共4页Power System Technology

摘　　要：提出一种不受衰减非周期分量影响的最小二乘滤波算法。该方法通过对最小二乘算法的滤波结果进行处理，完全消除了衰减非周期分量的影响，并与衰减时间常数Ｔｄ无关。文中还研究了运行频率对算法的影响及误差的消除方法。理论分析和仿真验算表明，该算法具有精度高，计算量较小，只需增加两点采样等特点。A least square algorithm immunizing from decaying DC component is proposed in this paper, which is based on the numeral process of filtering results of least square. The influence of running frequency on the algorithm and how to eliminate the influence are discussed. Except lesser computation amount, the new algorithm has no relation to the decaying constant and exists a relatively low time delay. Theoretical analysis and simulation show that the principle of the new algorithm is correct, and the computation result is accurate.

关 键 词：最小二乘法 电力系统 系统故障 滤波算法 

分 类 号：TM711[电气工程—电力系统及自动化]