Four-leg floating interleaved converters for electric vehicle applications with rule-based energy management algorithm

Abstract

This work contributes to the optimization of hybrid system coupling a fuel cell (FC) to a supercapacitor (SC) for electric vehicles. The complementarity between these two energy sources allows the improvement of the global performances of the system. Our study focuses on the implementation of control and energy management techniques. Our objective is to have a better use of the storage system. In this context, our approach is to regulate the bus current and voltage and then to develop two real-time energy management strategies, one without considering and the other with considering the state of charge of the storage system. A comparison between these two strategies allowed us to understand the importance of the state of charge in the hybrid system. MATLAB/Simulink helped us in showing the performance obtained on a given mission profile of the vehicle dynamics.