两种并联型有源滤波器控制方法的动态特性分析

An Analysis Over the Dynamic Features of Control Strategies Concerning two Types of Shunt Active Filter

并联型有源滤波器根据其谐波检测点的不同,有两种控制方法,即负载电流检测控制方法和电源电流检测控制方法。本文将对两种控制方法的数学模型进行比较,然后对两者的传递函数进行分析,指出两者在动特性上的差异。最后通过仿真来验证上述理论分析。

Based on the differences of harmonic testing point, there are two control ways for shunt active filters, that is, the way of load current sensing and the way of power supply current sensing. The article is to compare the mathematical models of the two ways, and then analyses the transfer functions of the two, intending to find out their dynamic differences. Finally, the author demonstrates the theoretical analysis by simulation.