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A algorithm of VMD for the detection of APF harmonics

机译：一种用于检测APF谐波的VMD算法

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摘要

In this paper, a new algorithm of Mode Decomposition Variational (VMD) for the detection of harmonics is proposed for the first time, and it is applied to the active power filter(APF). VMD decomposes the distorted power signal into a series of intrinsic mode functions (IMF), and different IMF components represent different frequency components, so that the fundamental IMF component can be determined. By subtracting the obtained fimdamental component from the original distortion signals, the harmonic component can be detected. In order to verily the effectiveness of VMD algorithm for the detection of APF harmonics, the VMD algorithm and the instantaneous reactive power theory are applied to the simulation circuit. The simulation results showed that the VMD algorithm has not only a good harmonic detection effect, but also a good effect on unstable signals.
机译：在本文中，第一次提出了一种用于检测谐波的模式分解变分（VMD）的新算法，并且应用于有源电力滤波器（APF）。 VMD将扭曲的电源信号分解为一系列内在模式功能（IMF），不同的IMF组件表示不同的频率分量，从而可以确定基本IMF组件。通过从原始失真信号中减去所获得的比米特术分量，可以检测谐波分量。为了确保VMD算法检测APF谐波的有效性，对仿真电路应用VMD算法和瞬时无功功率理论。仿真结果表明，VMD算法不仅具有良好的谐波检测效果，而且对不稳定信号的良好影响良好。

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