Terminal Sliding Mode Controller for Tracking a Wheeled Mobile Robot

محورهای موضوعی : Communication

Fahimeh Kordi ¹ , Hamidreza Reza Alikhani ² , Javad Nikoukar ³

1 - Department of Electrical Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran
2 - Department of Electrical Engineering, Tafresh University, Tafresh, Iran
3 - Department of Electrical Engineering, Saveh Branch, Islamic Azad University, Saveh, Iran

تاریخ دریافت : 1400/03/04 تاریخ پذیرش : 1400/04/31 تاریخ انتشار : 1400/09/10

کلید واژه: sliding mode control, NON-HOLONOMIC SYSTEMS, TERMINAL SLIDING MODE CONTROLLER, GRAPHIC SIMULATION,

چکیده مقاله :

In this paper, reference path tracking based on terminal slip mode control for a wheeled mobile robot is presented and the proposed method is practically simulated on a mobile robot. The wheeled actuator is a nonlinear system with two inputs for controlling and three state variables and a nonlinear constraint. To control this system in this paper, first by converting the equations of the non-holonomic system into a chain form, the equations of a wheeled mobile robot are extracted for generalized chain equations. Then the limited time terminal sliding model control method is presented to control the reference path tracking of this system. It could be run using a graphical simulation environment in MATLAB software. The proposed method for the wheeled mobile robot used in the laboratory is simulated. The simulation results in the graphical environment show the efficiency of the proposed method in comparison with the classical sliding mode control method. Finally, the practical results of the controller simulation to follow the reference path provided on the mobile robot are shown. The results of the practical simulation show well the proper performance of the proposed method.