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首页> 外文期刊>Leonardo Electronic Journal of Practices and Technologies >Active power filter improvement by new DC link for power quality enhancing
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Active power filter improvement by new DC link for power quality enhancing

机译：通过新的直流链路改善有源功率滤波器，以提高电能质量

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Active Power Filters (APFs) are one of the devices which could be applied for improving the Power Quality (PQ) indices such as harmonics, unbalances and voltage flicker. The most important topics in designing APFs are their correct control and especially suitable DC capacitor control for aforesaid parameters improvement. So in this paper, a new DC voltage link is developed by combining the fuzzy and PI control approaches into the predictive control structure. The presented DC link consists of a Fuzzy-PI Controller (FPIC). So, these parameters are modified by minimizing the errors between the DC link output and reference voltage. Finally, the output signal is added to two reference current achieved by incorporating the p-q theory. This method can almost improve the all PQ parameters such as harmonic, flicker, unbalances, power factor, etc. To test the APF in the worst conditions, an actual power system with nonlinear loads is considered. The aims of this paper are a new DC link of active power filter, power quality improvement based on fuzzy logic controller.
机译：有源功率滤波器（APF）是可用于改善电能质量（PQ）指标（例如谐波，不平衡和电压闪烁）的设备之一。设计APF时，最重要的主题是其正确控制，尤其是用于上述参数改进的合适直流电容器控制。因此，在本文中，通过将模糊控制和PI控制方法结合到预测控制结构中，开发了一种新的直流电压链路。所呈现的DC链路由Fuzzy-PI控制器（FPIC）组成。因此，通过最小化直流母线输出和参考电压之间的误差来修改这些参数。最后，将输出信号加到通过合并p-q理论获得的两个参考电流中。这种方法几乎可以改善所有PQ参数，例如谐波，闪烁，不平衡，功率因数等。为了在最坏的条件下测试APF，需要考虑具有非线性负载的实际电源系统。本文的目的是提出一种新型的有源滤波器直流环节，基于模糊逻辑控制器的电能质量改善方法。

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