有源调谐型混合滤波器的重复控制策略研究

Research on Repetitive Control Strategy of Active Tuned Hybrid Power Filter

以有源调谐型混合滤波器(ATHPF)作为研究对象,其特征在于有源电力滤波器(APF)直接并联于无源滤波支路中滤波电抗器的两端。其中,APF补偿电流的跟踪效果直接影响着滤波器的滤波效果。因此,这里结合重复控制原理,实现对APF补偿电流的高精度、无静差跟踪控制,从而提升滤波器的滤波效果。在此基础上进一步搭建了实验平台,通过对重复控制和三角波比较控制方式的对比,验证了所提理论分析的正确性和可行性。

The active tuned hybrid power filter(ATHPF) is studied,which is characterized by the fact that the active power filter(APF) parallels directly across a filter reactor of passive filter loop.Here,the tracing performance of APF compensation current directly effects filtering ability of the filter.Therefore,combing with the repetitive control principle,the compensation current of APF is traced with high precision and no static error control.Thereby,the filtering performance is improved.On this basis,the experimental platform is built to verify the effectiveness and feasibility of the theoretical analysis,where the comparison between repetitive control and triangular comparison control is conducted.