有源电力滤波器的新型拓扑结构和控制策略

着重介绍了用来抑制谐波和补偿无功功率的几种有源电力滤波器(APF)如并联型、串联型、串-并混合 型、无源有源混合型的拓扑结构。由无源滤波器(PF)与APF组合而成的混合型APF是目前较好的拓扑结构。对 比分析了可影响APF性能的几种适于APF的控制策略如基于空间向量的滞环电流控制、单周控制、无差拍控制 等,这些控制策略随着DSP技术的快速发展可方便地实现数字化,十分适合APF的控制。低损耗、低价格及大功 率、高频率的APF是未来的发展方向。

Research on APF Based on a Novel Topology Structure and Control Method

This paper introduces the topology structure of shunt APF, series APF, hybrid APF, passive and active power hybrid APF. Among those, the last one is the best. Several control methods applied in APF such as HCC based on space vector, one cycle control and slid mode control are analyzed and compared. Along with rapid development of DSP technology, those control methods can be digitized easily and are suitable to be applied in the control of APF. The APF with low loss, low price, heavy power and high frequency will be developed further in future.