Multipurpose Power Electronic Interface for Plug-In Electric Vehicles with Dual Charging Sources and Anfis Control

This paper presents a multipurpose power electronic interface (PEI) for plug-in electric vehicles (EVs), capable of utilizing dual sources—solar photovoltaic (SPV) and the electrical grid—during the battery charging process. The proposed PEI eliminates the need for additional components or switches to switch between sources or to perform Maximum Power Point Tracking (MPPT), making it a highly efficient solution. The converter, based on a conventional isolated Secondary-ended Primary Inductance Converter (SEPIC), is designed to operate in all vehicular modes: charging, propulsion, and regenerative braking (RB). In charging modes, the converter functions as an isolated SEPIC, providing safe and effective battery charging from both SPV and grid sources. During propulsion and regenerative braking, it operates as a flyback converter while maintaining electrical isolation in all modes for improved safety. The proposed PEI enhances the compactness and functionality of the onboard charger by integrating all modes into a single converter system, making it an ideal solution for electric vehicle applications. The system is controlled by an Adaptive Neuro-Fuzzy Inference System (ANFIS) controller, ensuring optimal performance under varying conditions.