Fuzzy Logic Based Power Factor Correction for BLDC Drive

This paper deals with a Cuk Topology for Power Factor Correction (PFC). Most of the front-end PFC converters are designed using diode bridge and has lower efficiency due to losses with reduced power factor. The current flow, during each intervals of the switching cycle reduces the conduction losses compared to the conventional Cuk PFC Rectifier. The converter also provides protection against starting current occurring at start-up, decreases input current ripple and reduces Electromagnetic Interference (EMI). It works in the Discontinuous Conduction Mode (DCM) to provide almost unity power factor and low distortions in the input current. To analyse the performance of this converter, a model based on the CUK topology has been designed by using MATLAB/SIMULINK software and implemented Fuzzy logic controller.