基于一种新型自适应滤波的谐波检测算法

为提高自适应噪声消除技术(adaptive noise canceling technology,ANCT)系统的瞬态响应速度,且不影响稳态精确度,提出了一种应用于有源电力滤波器(active power filter,APF)的新型自适应谐波电流检测方法。该方法增加的计算量少,通过对瞬态时期的权值变化的分析,证明了用传统方法确定了步长因子和迭代次数,系统就可迅速进入稳定状态。并应用matlab对方法进行了仿真研究,结果证明了该方法的有效性。

Harmonic Detecting Algorithm Based on A Novel Adaptive Filter

This paper presents a novel adaptive harmonics detecting algorithm applied in active power filter(APF),which can greatly shorten the transient period of adaptive noise canceling technology(ANCT) system without influencing its steady-stat accuracy or adding large amount of calculation.Based on the analysis of transient behavior of adaptive weighting factors,it is proven that the system can get into a steady-state in a short time while the step-size parameter and iteration times are determined by the conventional method.The validity of the proposed method is proven by the simulation results of MATLAB.