Comparative Analysis between SEPIC and Cuk Converter for Power Factor Correction

The aim of this paper is to give a comparative analysis between the two converter topologies namely Single Ended Primary Inductance Converter (SEPIC) and Cuk converter used for Power Factor Correction (PFC). MATLAB/Simulink models of SEPIC and Cuk converter are developed to improve the power factor at the input side as well as the voltage regulation at the output side. Hysteresis Current Control (HCC) technique is used for input PFC and Fuzzy Logic Controller (FLC) or Proportional Integral Controller (PIC) is adopted for regulation of the output voltage. The proposed system is tested at both steady state, transient condition and its performance is then estimated and compared in terms of various parameters like, Total Harmonic Distortion (THD), Input Power Factor (IPF), output voltage ripple for Fuzzy Logic and PI Controller.