Finite time stability of uncertain second order systems using sliding mode control

Author(s):  
Marwa Jouini ◽  
Slim Dhahri ◽  
Anis Sellami
Author(s):  
Bin Wang ◽  
Yangquan Chen ◽  
Ying Yang

Abstract This paper studies the chattering-free finite-time control for a class of fractional-order nonlinear systems. First, a class of fractional-order nonlinear systems with external disturbances is presented. Second, a new finite-time terminal sliding mode control method is proposed for the stability control of a class of fractional-order nonlinear systems by combining the finite-time stability theory and sliding mode control scheme. Third, by designing a controller with a differential form and introducing the arc tangent function, the chattering phenomenon is well suppressed. Additionally, a controller is developed to resist external disturbances. Finally, numerical simulations are implemented to demonstrate the feasibility and validity of the proposed method.


2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Jingfei Jiang ◽  
Hongkui Li ◽  
Kun Zhao ◽  
Dengqing Cao ◽  
Juan L. G. Guirao

AbstractThis paper deals with the finite time stability and control for a class of uncertain variable fractional order nonlinear systems. The variable fractional Lyapunov direct method is developed to provide the basis for the stability proof of the system considered. The sliding mode control method is applied for robust control of uncertain variable fractional order systems; furthermore, the chattering phenomenon is avoided. And the finite time stability of the systems under control law is proved based on the proposed stability criterion. Finally, numerical simulations are proposed and the efficiency of the controller is verified.


2018 ◽  
Vol 2018 ◽  
pp. 1-8 ◽  
Author(s):  
Dan-xu Zhang ◽  
Yang-wang Fang ◽  
Peng-fei Yang ◽  
You-li Wu ◽  
Tong-xin Liu

This paper proposed a finite time convergence global sliding mode control scheme for the second-order multiple models control system. Firstly, the global sliding surface without reaching law for a single model control system is designed and the tracking error finite time convergence and global stability are proved. Secondly, we generalize the above scheme to the second-order multimodel control system and obtain the global sliding mode control law. Then, the convergent and stable performances of the closed-loop control system with multimodel controllers are proved. Finally, a simulation example shows that the proposed control scheme is more effective and useful compared with the traditional sliding mode control scheme.


2020 ◽  
Vol 51 (16) ◽  
pp. 3425-3435
Author(s):  
Juan Diego Sánchez-Torres ◽  
Aldo Jonathan Muñoz-Vázquez ◽  
Michael Defoort ◽  
Rodrigo Aldana-López ◽  
David Gómez-Gutiérrez

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