This study provides the design, control and comparative analysis of the proposed LCLC coupling hybrid active power filter (LCLC-HAPF). Compared with the conventional L filter coupling active power filters (APFs), LC filter and LCL filter coupling HAPFs (LC-HAPFs and LCL-HAPFs), the proposed LCLC-HAPF provides better switching frequency harmonics elimination, lower dc-link voltage rating and switching loss. Although the LCLC-HAPF has some advantages, two main challenges will still be confronted in practical implementations. Those are stability problems caused by resonance of LCLC filter, and parameter design for the LCLC filter. In this study, a new active damping method is proposed to overcome the high order resonance problem existing in the proposed LCLC-HAPF. After that, the stability analysis and parameter design are given for the proposed LCLC-HAPF. Finally, the effectiveness of the proposed LCLC-HAPF topology is validated through both simulation and experimental studies in comparison with the conventional APFs and HAPFs.

中文翻译：

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LCLC耦合混合型有源电力滤波器的设计，控制和比较分析

这项研究提供了所提出的LCLC耦合混合有源电力滤波器（LCLC-HAPF）的设计，控制和比较分析。与传统的L滤波器耦合有源功率滤波器（APF），LC滤波器和LCL滤波器耦合HAPF（LC-HAPF和LCL-HAPF）相比，拟议的LCLC-HAPF提供了更好的开关频率谐波消除，更低的直流链路额定电压和开关损耗。尽管LCLC-HAPF具有一些优势，但在实际实施中仍将面临两个主要挑战。这些是由LCLC滤波器的谐振以及LCLC滤波器的参数设计引起的稳定性问题。在这项研究中，提出了一种新的主​​动阻尼方法，以克服所提出的LCLC-HAPF中存在的高阶共振问题。之后，对所提出的LCLC-HAPF进行了稳定性分析和参数设计。最后，与传统的APF和HAPF相比，通过仿真和实验研究验证了所提出的LCLC-HAPF拓扑的有效性。