有源电力滤波器电流控制PI校正研究

采用PI校正方法对并联有源电力滤波器电流环进行控制。通过对并联有源电力滤波器的开环幅频特性分析和PI校正分析，得到了并联有源电力滤波器电流环控制的校正参数。通过仿真实验，对有源电力滤波器的补偿精度进行分析，结果证明该校正方法能够取得较好的补偿效果。

Research of PI Current Control of Active Power Filter

The application of PI control for current closed loop control of shunt active power filter is discussed. Through the open-loop frequency analysis of shunt active power filter, the PI current correction parameters of active power filter is deduced. Based on the analysis, the PI current control loop of active power filter is researched and simulated. The results of simulation show that the method is correct and feasible.