基于盲源分离理论的电能质量闪变的仿真研究

Simulation Research of the Power Quality Flicker Based on the Blind Source Separation Theory

本文研究了利用单只电压互感器输出的信号序列构造延迟矩阵,以代替多个传感器输出信号阵列,满足盲源分离的要求并进行了盲源分离,对闪变的时域和频域进行分析,验证盲源分离理论的准确性和优越性,实现了从含有多个频率分量的闪变信号中分离出闪变包络及各谐波、间谐波频率分量的波形。

This paper studies the delay matrix structured by the single voltage transformer output signal sequence,in order to replace the plurality sensor to output signal array,meet the requirements of blind source separation and carry out the blind source separation.This paper analyzes the time and frequency domain of the flicker,verifies the accuracy and superiority of blind source separation theory,dissociates the waveforms of the frequency component of each harmonics and inter-harmonics of the flicker envelope from the flicker signals that containing many frequency component.