Comparative Analysis of Fuzzy and PI Controller Based Two Switch Buck-Boost Converter for Power Factor Correction

The use of power electronic devices in the present scenario is not avoidable. But the power electronic devices cause low power factor in the input side during ACDC conversion to drive the DC load. This article presents two switch buckboost converter for correcting the input power factor. This two-switch buck boost converter not only improve the input factor but also satisfies the DC load. The average current control technique is used to control the twoswitch buck boost converter to achieve the unity power factor at the input side. Compared to conventional dc-dc converters, twoswitch buck boost converter is more efficient because of low voltage stress across the switches. The performance of the converter is further enhanced by incorporating fuzzy logic controller and PI controller. At last, the proposed concept is validated by the MATLAB/SIMULINK software and the appropriate results are presented. The performance of fuzzy logic and PI controller are also presented. KeywordBuckBoost Converter, Fuzzy logic Controller, Power Factor, two switch.