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Analysis and operation of hybrid active filter for harmonic elimination

机译：混合有源滤波器谐波消除的分析与运行

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摘要

This paper presents a hybrid active filter topology and its control to suppress the harmonic currents from entering the power source. The adopted hybrid active filter consists of one active filter and one passive filter connected in series. By controlling the equivalent output voltage of active filter, the harmonic currents generated by the nonlinear load are blocked and flowed into the passive filter. The power rating of the converter is reduced compared wit the pure active filters to filter the harmonic currents. The harmonic current detecting approach and dc-link voltage regulation are proposed to obtain equivalent voltage of active filter. The effectiveness of the adopted topology and control scheme has been verified by the computer simulation and experimental results in a scaled-down laboratory prototype.
机译：本文提出了一种混合有源滤波器拓扑及其控制，以抑制谐波电流进入电源。所采用的混合有源滤波器由一个有源滤波器和一个无源滤波器串联而成。通过控制有源滤波器的等效输出电压，非线性负载产生的谐波电流被阻止并流入无源滤波器。与纯有源滤波器相比，转换器的额定功率降低了，以滤除谐波电流。为了获得有源滤波器的等效电压，提出了谐波电流检测方法和直流环节调压方法。通过按比例缩小的实验室原型中的计算机仿真和实验结果，已验证了采用的拓扑和控制方案的有效性。

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