新型单相谐振阻抗型混合电力滤波器的研究

为了进一步降低混合电力滤波器的有源滤波器容量,采用了一种新的混合电力滤波器的拓扑结构。新拓扑结构的基本思想是增加了和有源电力滤波器(APF)并联的LC基波谐振支路,并将APF控制成受控谐波电流源。LC基波谐波支路使得有源电力滤波器的额定电压和电流大大降低。分析了新型单相谐振阻抗型混合电力滤波器的工作原理及滤波特性。通过MATLAB/Simulink仿真,验证了新型单相谐振阻抗型混合电力滤波器的滤波特性。仿真结果表明这种新型混合电力滤波器具有优良的滤波性能。

Study on Novel Single-phase Resonant Impendent Type Hybrid Power Filter

This paper presents a novel hybrid power filter topology to reduce active filter rate of hybrid power filter. The basic idea of the new topology is to add LC fundamental resonant branch in parallel with active power filter (APF) which is controlled as a harmonic current source. The LC fundamental resonant branch greatly reduces rated voltage and current of APF. The working principle of novel single-phase RITHAF (Resonant Impendent Type Hybrid Active Filter) and its filtering characteristic are analyzed. By way of simulation with MATLAB/ Simulink, the filtering characteristic of novel single-phase RITHAF is verified. Simulation results show that the novel single-phase RITHAF has excellent filtering performance.