基于同步相关滤波的广义谐波检测

Detection of generalized harmonics based on in-phase correlation filtering technique

采用三相系统复信号的频域表示并根据频谱搬移原理 ,本文提出了一种基于同步相关滤波的谐波检测方法 ,可用于三相电路中除正序基波以外广义谐波的有效检测。针对三相交 -交变频器交流励磁发电系统的谐波检测进行的仿真研究 。

Applying the frequency\|domain representation of the complex signals in a three phase system, a harmonic detection method based on the in phase correlation filtering was put forward in this paper, which can be used to detect effectively the generalized harmonics in the three phase system except the fundamental of positive sequence. The simulation about the harmonic detection of a three phase cycloconverter fed a.c. excited generator verified the effectiveness of the method.