Shifting nonlinear phenomena in a DC-DC converter using a fuzzy logic controller

Kamel Guesmi, Najib Essounbouli, Abdelaziz Hamzaoui, Janan Zaytoon et Noureddine Manamanni

The occurrence of nonlinear phenomena in DC–DC power converters makes their analysis and control difficult. We propose a converter model that takes into account the internal resistances of the converter elements. A fuzzy logic controller is then used to shift the nonlinear phenomena outside the operating domain, and to ensure current regulation over a wide range of parameters. To validate the achieved performance, a comparative study is presented.