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A novel average filter based phase-locked loop for FACTS devices

机译:一种新颖的基于平均滤波器的FACTS装置锁相环

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The continuous phase-angle of electrical networks is critical information for the auxiliary devices used for improving the stability of the power system. A Phase-Locked Loop (PLL) is the most widely used method for extracting the grid phase accurately to synchronize these devices. In this study, a novel PLL, based on average filter algorithm (APLL), is proposed to extract the amplitude, phase and sequences of selected harmonic for the real time applications. It is actualized by integrating the average filters into the simple structure of adaptive notch filter. The accuracy of APLL is demonstrated by giving the mathematical derivation of each property and its validation is evaluated under the distorted system conditions by comparing its results with Fast Fourier Transform at the simulation and experimental case studies. (C) 2016 Elsevier B.V. All rights reserved.
机译:电网的连续相角是用于改善电力系统稳定性的辅助设备的关键信息。锁相环(PLL)是最广泛使用的方法,可以准确地提取电网相位以同步这些设备。在这项研究中,提出了一种基于平均滤波器算法(APLL)的新型PLL,以提取用于实时应用的选定谐波的幅度,相位和序列。通过将平均滤波器集成到自适应陷波滤波器的简单结构中来实现。通过给出每种特性的数学推导来证明APLL的准确性,并通过在仿真和实验案例研究中将其结果与Fast Fourier变换进行比较,在失真的系统条件下评估APLL的有效性。 (C)2016 Elsevier B.V.保留所有权利。

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