Title :
Second-order time-varying sliding mode control for uncertain systems
Author :
Jie Geng ; Yongzhi Sheng ; Xiangdong Liu ; Bing Liu
Author_Institution :
Sch. of Autom., Beijing Inst. of Technol., Beijing, China
Abstract :
A novel second-order time-varying sliding mode control(SOTVSMC) law is proposed for the robust tracking control problem of nonlinear smooth single-input single-output(SISO) system with disturbance. The advantages of the proposed SOTVSMC are twofold. The global second order sliding mode is established, which implies that the closed-loop system is global robust against matched parameter uncertainties and disturbances. Meanwhile, the chattering problem is significantly alleviated. Then the parameter of the sliding mode is obtained by solving an optimal problem. Finally, the effectiveness and robustness of the control strategy is demonstrated by simulation results.
Keywords :
closed loop systems; control nonlinearities; nonlinear control systems; optimisation; robust control; time-varying systems; uncertain systems; variable structure systems; SOTVSMC law; chattering problem; closed loop system; control strategy robustness; global second order sliding mode; matched parameter disturbances; matched parameter uncertainties; nonlinear smooth SISO system; nonlinear smooth single-input single-output system; optimal problem; robust tracking control problem; second-order time-varying sliding mode control; uncertain systems; Algorithm design and analysis; Convergence; Robustness; Time-varying systems; Trajectory; Uncertainty; Chattering Alleviation; Global Second Order Sliding Phase; Nonlinear Systems; Sliding Mode Control;
Conference_Titel :
Control and Decision Conference (CCDC), 2013 25th Chinese
Conference_Location :
Guiyang
Print_ISBN :
978-1-4673-5533-9
DOI :
10.1109/CCDC.2013.6561626
