Abstract

This paper presents a novel sliding-mode control method for torque control of induction motors for hybrid electric vehicle applications. The control principle is based on sliding-mode control combined with space vector modulation techniques. The sliding-mode control contributes to the robustness of induction motor drives, and the space vector modulation improves the torque, flux, and current steady-state performance by reducing the ripple. The Lyapunov direct method is used to ensure the reaching and sustaining of sliding mode and stability of the control system. Computer simulation results show that the proposed control scheme owns very good dynamic characteristics, high accuracy in torque tracking to various reference signals and strong robustness to external load disturbances, which meet the requirements of hybrid electric vehicle applications.

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