Decoupling and tracking control for linear time-varying systems using eigenstructure assignment and CGT

2003 ◽  
Author(s):  
Ho Chul Lee ◽  
Jae Weon Choi
Keyword(s):  
Tracking Control ◽  
Linear Time ◽  
Eigenstructure Assignment ◽  
Time Varying ◽  
Time Varying Systems

Design of an adaptive chattering avoidance global sliding mode tracker for uncertain non-linear time-varying systems

2016 ◽  
Vol 39 (10) ◽  
pp. 1547-1558 ◽  
Author(s):  
Saleh Mobayen ◽  
Fairouz Tchier
Keyword(s):  
Sliding Mode Control ◽  
Tracking Control ◽  
Sliding Mode ◽  
Linear Time ◽  
Time Varying ◽  
Mode Control ◽  
Global Sliding Mode Control ◽  
Non Linear ◽  
Time Varying Systems ◽  
Non Linear System

In this paper, a novel adaptive global sliding mode control technique is suggested for the tracking control of uncertain and non-linear time-varying systems. The proposed scheme composed of a global sliding mode control structure to eliminate reaching mode and an adaptive tracker to construct the auxiliary control term for eliminating the impacts of unwanted perturbations. Using the Lyapunov direct method, the tracking control of the non-linear system is guaranteed. Moreover, superior position tracking performance is obtained, the control effort is considerably decreased and the chattering phenomenon is removed. Furthermore, using adaptation laws, information about the upper bounds of the system perturbations is not required. To indicate the effectiveness of the suggested scheme, three simulation examples are presented. Simulation results demonstrate the superiority and capability of the offered control law to improve the transient performance of a closed-loop system using online adaptive parameters.

An Internal Model-Based Tracking Control for a Class of Uncertain Linear Time-Varying Systems

2010 ◽  
Author(s):  
Zhen Zhang ◽  
Zongxuan Sun ◽  
Peiqing Ye
Keyword(s):  
Tracking Control ◽  
Internal Model ◽  
Linear Time ◽  
Design Method ◽  
Uncertain System ◽  
Feedback Gain ◽  
Time Varying ◽  
Linear Parameter Varying ◽  
Model Based ◽  
Time Varying Systems

In this paper, we extend previous results for a novel internal model-based tracking control with a class of known LTV plant models driven by LTI exosystems to uncertain LTI plant models driven by LTV exosystems. The augmented time-varying system to be stabilized becomes uncertain. Moreover, the time-varying fashion under consideration renders the augmented uncertain system linear parameter-varying (LPV). By means of an output-feedback gain-scheduling design, the augmented uncertain LTV system is stabilized. Simulation results illustrate the proposed design method.

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