Modeling and adaptive lyapunov sliding mode controller for battery electric vehicle using interleaved converters

Abstract

Vehicular system, purely based on green energy, is gaining importance be cause of global warming and perilous greenhouse gases emission. Fossil fuel, liquefied natural gas (LNG), coal and other conventional energy sources are becoming obsolete. Nonetheless, the strategic use and control of an alternate) energy system is the way forward. This paper proposes a dynamic state- space model based control strategy for a battery electric vehicle (BEV). It employs two interleaved power converters to reduce ripples in the input induc- tor current and an output capacitor voltage. Non-linear controllers including Lyapunov redesign, sliding mode controller (SMC) and adaptive Lyapunov- redesign controller have been proposed for tracking of the inductor currents to their desired references and output direct current (DC) voltage regula- tion. Additionally, system modeling and its parameters are also derived and substantiated through the simulations using MATLAB/Simulink and hard- ware in loop. Results are further compared with linear proportional integral. derivative (PID) controller and cach other, for two different sets of reference current. It is found that sliding mode controller produces better results than those of the PID, Lyapunov-redesign as well as adaptive Lyapunov-redesign controllers.