邓亚平 同向前

针对有源调谐型混合滤波器,本文在建立系统谐波等值电路结构的基础上,从理论角度对滤波控制系统分别采用基于检测电源电流与基于检测滤波支路电流这两种控制方法下的系统滤波特性进行了分析,并根据所得出的幅频特性对两种控制方法的优缺点进行了对比研究。在此基础上,还进一步研究了在无源支路参数发生偏移的情况下,两种控制方法对该有源调谐型混合滤波器工作性能的影响。本文所得出的结论可为有源调谐型混合滤波器在不同运行工况下控制策略的合理选择提供有效的理论依据。

Comparison between two control methods forActive Tuned Hybrid Power Filter

On the basis of establishing equivalent circuit of an active tuned hybrid power filter (ATHPF),this paper carries on an research on the harmonic filtering characteristic of the system theoretically when the control strategies are based on detecting source current and filter branch current respectively. Further more, a comparison research according to their amplitude-frequency curve was carried out to obtain their advantages and disadvantages between the two methods. The influence of ATHPF operating performance produced by parameters change of passive filter branch was also studied. The conclusion is useful to the reasonable choice of control strategy under different operating modes.