Analysis and design of three phase single stage isolated Cuk based PFC converter

In this paper, analysis and design of a three phase isolated Cuk based power factor corrected converter is presented. The proposed converter uses the voltage follower approach i.e it is operated in Discontinuous Conduction Mode (DCM). This avoids the inner current control loop which further eliminates the sensing of current. This makes the system more reliable and robust. The proposed control uses only one voltage loop for output voltage regulation and all the power switches are driven by the same gate signal. The operation, design calculations and simulation results from PSIM are presented to confirm the operation of the proposed converter.