Model-free predictive control for power decoupling integrated PFC converters

An innovative integration of the second-order ultra-local model and deadbeat predictive control tactic is proposed to reinforce the performance of the power decoupling circuit. Consequently, bulky electrolytic capacitors can be eliminated, and the reliability of PFC converter can be improved. Simulation results of an 800W prototype demonstrate that better dynamic and steady state performance can be achieved compared with the previous control method such as proportional-resonant (PR) control.