The operation principle and control strategies of the APF and the DVR are introduced. Digital simulations are employed to validate the feasibility and validity of the harmonics detection method and voltage dip detection method by using MATLAB/SIMULINK.

• 在详细介绍有源滤波器的基本原理、类型和控制策略以及动态电压恢复器的基本原理与补偿方式的基础上,将上述基于数学形态学的检测方法分别应用于谐波和电压跌落补偿,仿真结果表明上述检测方法正确有效。