Adaptive Super-Twisting Sliding Mode Control for Mobile Robots Based on High-Gain Observers

Abstract EN

In this paper, a robust adaptive output feedback control strategy based on a sliding mode super-twisting algorithm is designed for the trajectory tracking control of a wheeled mobile robot.

First, a robust adaptive law is designed to eliminate the influence of parameter uncertainties.

Second, a double-power sliding mode surface is designed to improve the response speed of the robot system.

Finally, a high-gain observer is employed to estimate the speed information.

The stability of the closed-loop system is proved using the Lyapunov stability theorem.

The effectiveness of the proposed control strategy is verified by simulation.