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本文提出了一种新型无变压器的串联混合有源电力滤波器(TL-SHAPF)的拓扑。有源滤波器和电容是串联关系,然后和电感并联,这样一种总体的结构不通过变压器而是直接串联到线路上。在该拓扑结构中,在串联谐振和并联谐振概念基础上采用了电流分离的疗法。源电流被提供了两个通路:一个是谐波电流通路,另一个是基波电流通路。在固定参考坐标系中得到了从低通到带通变换的控制方法。控制器对系统性能的影响用状态空间法来描述。文章也给出了所建模型及仿真结果。
This paper presents a novel transformerless series hybrid active power filter (TL-SHAPF) topology. Active filters and capacitors are in series, and then in parallel with the inductor, so that an overall structure does not go through the transformer but directly in series with the line. In this topology, galvanic separation therapy is used based on the concepts of series resonance and parallel resonance. The source current is provided with two paths: one for the harmonic current path and the other for the fundamental current path. In the fixed reference frame, a control method from low pass to bandpass transform is obtained. The effect of the controller on the system performance is described by the state space method. The article also gives the model and simulation results.