Dynamic power factor control using multi-model operation of Cuk converter

This paper deals with dynamic power factor correction using Cuk converter that can be operated in continuous and discontinuous conduction. It is used to overcome the effect of diode bridge rectifier that draws non-sinusoidal current from the AC source and makes the input power factor very poor. The THD of the input current at the AC mains and input power factor are analysed with the diode bridge rectifier, diode bridge rectifier with cuk converter. The proposed system is simulated in MATLAB/Simulink for CCM and DCM modes. A hardware prototype of the cuk converter is implemented using PIC microcontroller to assist in dynamic power factor correction.