Comparative analysis of Cuk converter with proportional integral controller proportional resonant controller

摘要

This study presents comparison between two different control techniques for PFC converters with less total harmonic distortion (THD). The PR current controller provides the gain at resonant frequency & eliminates steady state error. On other hand, PI controller has less disturbance rejection capability in high frequency range. Hence PR controllers can be applied to PFC converters to obtain extended DC-link voltage with enhanced power quality at input. Here, Cuk converter is introduced for power quality improvement and it's operation is described in three modes with corresponding waveforms. The simulation study of Cuk converter with PI controller & PR controller is carried out and comparative analysis of these two techniques is presented.