Robust fuzzy model predictive control for energy management systems in fuel cell vehicles

Abstract

Fuel cell vehicle combines the benefits of fuel cell stack and energy storage system to achieve fuel economy and zero emission. The energy management system is vital to the hybrid vehicle systems since it regulates power flow from the fuel cell stack and energy storage system. In this paper, we design an energy management scheme in fuel cell vehicle systems. By using optimal control principle, we aim to reduce hydrogen consumption while maintaining battery state of charge under practical operating constraints and uncertain future power demand. Fuzzy modelling approach is employed to describe the nonlinear power plant and a robust model predictive based control is designed to achieve the desired system performance. Moreover, traffic condition is incorporated into the energy management controller design to further improve the system performance. The effectiveness and advantages of the proposed control scheme are illustrated by a simulator developed based on real-world experimental data.