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首页> 外文期刊>Power Electronics, IET >Notch filter-based fundamental frequency component extraction to control distribution static compensator for mitigating current-related power quality problems
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Notch filter-based fundamental frequency component extraction to control distribution static compensator for mitigating current-related power quality problems

机译：基于陷波滤波器的基频成分提取，以控制分布静态补偿器，以缓解电流相关的电能质量问题

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摘要

This study presents an implementation of a multifunction distribution static compensator (DSTATCOM) using a notch filter-based control algorithm for DSTATCOM to mitigate power quality issues. There are many power quality problems such as poor power factor of loads, network pollution due to harmonics injection by the non-linear loads and excessive neutral current because of non-linear and unbalanced loads. The function of the notch filter is to extract the fundamental frequency component of the load currents. The notch filter is designed to retain its property of fundamental frequency component extraction without any extra calculation to work even under variation of grid frequency. These components of load currents are used to estimate reference supply currents. This control algorithm is implemented on a digital signal processor and tested on a developed prototype of DSTATCOM.
机译：这项研究提出了一种多功能分配静态补偿器（DSTATCOM）的实现，该补偿器使用基于陷波滤波器的控制算法来减轻DSTATCOM的电能质量问题。电能质量问题很多，例如负载的功率因数低，非线性负载注入谐波会导致网络污染以及非线性负载和不平衡负载会导致中性电流过大。陷波滤波器的功能是提取负载电流的基频分量。陷波滤波器旨在保留其基本频率分量提取的特性，即使在电网频率变化的情况下也无需任何额外的计算即可工作。负载电流的这些分量用于估计参考电源电流。该控制算法在数字信号处理器上实现，并在DSTATCOM的开发原型上进行测试。

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