A Fuzzy Controlled Interleaved Buck-Boost Power Factor Converter for Electric Vehicle Battery Charging

For electric vehicle battery charging better converters needs to be used for reduced ripple in voltage and current. The conventional buck-boost converters are replaced with novel power factor converters (PFCs) for improving the power factor of the source. As the large capacity batteries need more power to charge which impacts the quality of the source. In this paper, a novel interleaved boost cascaded by a buck converter is integrated into a single-phase source to charge batteries with a wide range of ratings. The converter is controlled by Fuzzy Interface System (FIS) to operate the switches of the converter to change the output voltage to a specific value. The output voltage generation has a wide range between 50V to 500V. The complete modeling and analysis are done in MATLAB software with results discussed for different operating conditions. A comparative analysis between PI and fuzzy controllers is also carried out concerning time.