Hybrid active power filter DC bus control based on double fuzzy control

Aiming at the existing problems of overshoot and static error of DC bus voltage control methods, the design of hybrid active power filter control system is presented in this paper. In the system, a hybrid active power filter system model is established. In order to control DC bus voltage, a double fuzzy controller is designed as well. The MATLAB simulation results show the system not only keeps the advantage of faster response but also has smaller static error and overshoot in comparison to traditional DC voltage control method.