Design of a PFC rectifier with fast start up response and low input current distortion

For a PFC rectifier, normally designing of the PI compensator is based on the frequency domain model which is derived from the dynamic model of the rectifier, so it cannot guarantee a fast start up response. As the high input current quality and fast start up response are conflicting objectives and with improving one of them, another is degraded, for designing a PI controller which can provide both of them, a Multi-Objective optimization approach can be implemented. In this paper, for the first time, Strength Pareto Evolutionary Algorithm which is based on Pareto Optimality concept is used to gain a fast start up response as well as low input current distortion. In order to validate the proposed PI controller, simulation results are presented.