Name:Yang Xiaohui
Nationality:China
Email:yangxiaohui@ncu.edu.cn
Phone:13970941450
TeacherType:Doctoral Supervisor
Gender:male
Graduated From:Nanchang University
Degree:doctor
Affiliated Institution:College of Information Engineering
Position Level:Level 4 Technical Position
Staff Category:Teaching and Research-Oriented
Professional Title:Professor
Subject:Engineering
Department:Department of Energy and Electrical Engineering
Office Address:Xin Gong Building, Room C303-1
Professional Title Level:Senior Professional Title
Position Category:Teaching Position
In this paper, we propose a backstepping integral nonsingular fast terminal sliding mode control approach based on an extended state observer to the trajectory tracking control of robotic manipulators with LuGre friction. In order to improve convergence speed and tracking precision, an integral fast terminal sliding surface is introduced. An appropriate saturation function is designed in the control input to avoid singularity. An extended state observer is employed to estimate the uncertainties and disturbances, and they are compensated by the control laws, for which the chattering can be effectively eliminated. The backstepping method is used to design the control input of the system to ensure the globally asymptotic stability based on the Lyapunov criterion. In comparison with other control methods, simulation results show effectiveness and superiority of this proposed control scheme.