摘要
从理论上对自适应槽口滤波器的基本原理进行了分析,指出由于其反馈量是以输出量中含有基波分量为前提的。若输出分量中只含有谐波分量而无基波分量,反馈量为零,也就不能达到输出电流中不含基波的目的,因此该检测方法输出的电流中必定含有一部分基波分量,同时导致有源滤波器向电网输送一部分有功功率,直流侧电容器电压不能保持稳定,使其应用受到一定限制。
Based on the principle of adaptive filter, we find that in this method, the output contains base component, this is because its feedbacks is gained presupposing that the output contains base component. If the output contains only harmonic component and no base component, feedback will be zero, the purpose that the output contains only harmonic component will not be reached. At the same time,APF will send active current to net. This is its limitation~
出处
《现代电子技术》
2007年第2期36-37,共2页
Modern Electronics Technique
关键词
自适应滤波
谐波检测
基波分量
谐波分量
adaptive filter
harmonic detection
base component
harmonic component
