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Analysis and Design of a New Current Controlled Switched Capacitor Filter for Harmonic Mitigation

机译：新型电流控制开关电容器滤波器的谐波分析与设计

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摘要

This article presents a novel switched capacitor (SC) type single-phase active filter. The power circuit is simple, requiring only three bi-directional switches, as well as the control circuit that is based on hysteresis current control. There is no need for employing a capacitor voltage regulation loop if the reactive components are chosen adequately. The operating principles are described and a logic circuit for generating the gating signals of the switches is presented. A design approach is proposed and the feasibility of the topology is verified by simulation and experimental results. An interesting feature of the proposed scheme is that considerable harmonic mitigation can be achieved with an average switching frequency of a few kHz.
机译：本文介绍了一种新型的开关电容器（SC）型单相有源滤波器。电源电路简单，仅需三个双向开关，以及基于磁滞电流控制的控制电路。如果适当选择电抗元件，则无需采用电容器电压调节环路。描述了工作原理，并给出了用于产生开关的选通信号的逻辑电路。提出了一种设计方法，并通过仿真和实验结果验证了该拓扑的可行性。所提出的方案的一个有趣的特征是，可以以几kHz的平均开关频率实现相当大的谐波抑制。

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