新型单相并联混合电力滤波器的研究

Study on a novel single-phase parallel hybrid power filter

本文针对LC无源滤波器和传统的电压源型并联混合电力滤波器的缺点,提出了一种新型的并联混合电力滤波器。它由纯调谐LC无源滤波器、附加电感和有源电力滤波器(APF)构成,APF控制成谐波电流源。从理论分析得到了APF的容量公式,并提出了附加电感的设计原则。仿真和实验结果证明了此方案的有效性和优越性。

A novel single- phase parallel hybrid power filter is presented in this paper, which can eliminate drawbacks of LC passive filter and the conventional voltage source parallel hybrid power filter. The novel power filter consists of the well tuned LC passive filter, the additional inductor and the active power filter (APF) which is controlled as a harmonic current source. According to the theoretic analysis, a formula estimating VA rating of APF and some design principles of the additional inductor are proposed. Simulation and experiment results verify the effectiveness and advantage of the novel power filter.