有源电力滤波器直流侧电压控制系统的仿真

针对有源电力滤波器的特点,提出一种用MATLAB/Simulink元件库中的电力电子器件建立闭环控制系统的仿真模型,用特有的S函数对改进的ip-iq算法编程实现。仿真分析了投入APF前后系统建立过程各个变量的状态变化,针对其结果进行了定性分析研究,分析影响APF投入及其直流侧电压控制的各种因素。仿真分析表明,系统仿真模型有效地模拟了系统启动过程中,补偿电流指令及直流侧电压的过渡过程,对研究和应用数字化控制技术的有源电力滤波系统具有重要指导意义。

DC Side Voltage Control System Simulation of Active Power Filter

For the characteristics of the active power filter,a closed-loop control system’s simulated model was set up which used the power electronic devices of the MATLAB / Simulink component library,and the improved ip-iq algorithm was programmed by the specific S function.In the model,the state change of each parameter was analyzed in the process that before and after the application of APF,the results were analyzed qualitative to show what affect the application of APF and the DC side voltage control.The results of simulation show that the simulated model can effectively simulate the system’s startup processes,in which the compensation current command and the DC side voltage of the transition process can be seen clearly.All of this is an important guiding significance for the research and the digital control application of the active power filter.