Research on the Tracking Problem of Chaotic Systems with Static Uncertain Function and Unknown Parameters

2011 ◽  
Vol 66-68 ◽  
pp. 220-223 ◽  
Author(s):  
Wei Ming Sun ◽  
Xin Yu Wang ◽  
Jun Wei Lei
Keyword(s):  
General Class ◽  
Chaotic Systems ◽  
Engineering Application ◽  
Adaptive Controller ◽  
Tracking Problem ◽  
Unknown Parameters ◽  
Robust Adaptive ◽  
Robust Adaptive Controller

Considering the situation with both unknown multi-parameters and uncertain multi- functions, a robust adaptive controller was constructed to solve the tracking problem of a general class of chaotic systems. What is worthy pointing out is that the uncertainties are assumed to be bounded with triangular functions which is meaningful in engineering application.

Nonlinear Robust Adaptive Control Using Direct Adaptive Method

2012 ◽  
Vol 263-266 ◽  
pp. 817-821 ◽  
Author(s):  
Yi Mei Chen ◽  
Shao Ru Chen
Keyword(s):  
Adaptive Controller ◽  
Adaptive Method ◽  
Robust Adaptive Control ◽  
Adaptive Stabilization ◽  
Unknown Parameters ◽  
System A ◽  
Robust Adaptive ◽  
System States ◽  
Direct Adaptive Method ◽  
Robust Adaptive Controller

The problem of robust adaptive stabilization of a class of multi-input nonlinear systems with unknown parameters and structure has been considered. By employing the direct adaptive method to a general nonlinear adaptive system, a robust adaptive controller is designed to complete the global asymptotically stability of the system states. Some simulations are provided to illustrate the effectiveness of the proposed method.

Adaptive Modified Hybrid Robust Projective Synchronization Between Identical and Nonidentical Fractional-Order Complex Chaotic Systems With Fully Unknown Parameters

2016 ◽  
Vol 11 (4) ◽  
Author(s):  
Hadi Delavari ◽  
Milad Mohadeszadeh
Keyword(s):  
Fractional Order ◽  
Chaotic Systems ◽  
Sliding Mode ◽  
Adaptive Controller ◽  
Projective Synchronization ◽  
Order Complex ◽  
Unknown Parameters ◽  
Adaptive Sliding Mode Controller ◽  
Robust Adaptive ◽  
Complex Chaotic Systems

In this paper, a robust adaptive sliding mode controller is proposed. Under the existence of external disturbances, modified hybrid projective synchronization (MHPS) between two identical and two nonidentical fractional-order complex chaotic systems is achieved. It is shown that the response system could be synchronized with the drive system up to a nondiagonal scaling matrix. An adaptive controller and parameter update laws are investigated based on the Lyapunov stability theorem. The closed-loop stability conditions are derived based on the fractional-order Lyapunov function and Mittag-Leffler function. Finally, numerical simulations are given to verify the theoretical analysis.

The use of identified parameter limits in a robust adaptive controller

1997 ◽  
Vol 5 (4) ◽  
pp. 469-475
Author(s):  
R.W. Beaven ◽  
M.T. Wright ◽  
M.I. Friswell
Keyword(s):  
Adaptive Controller ◽  
Robust Adaptive ◽  
Robust Adaptive Controller

Robust Adaptive Control Based on Specified Region Pole Assignment for Flexible Hypersonic Vehicle

2011 ◽  
Vol 128-129 ◽  
pp. 270-275
Author(s):  
Zhi Gao Feng
Keyword(s):  
Dynamic Performance ◽  
Adaptive Controller ◽  
Pole Assignment ◽  
Hypersonic Vehicle ◽  
Open Loop ◽  
Robust Adaptive Control ◽  
Robust Controller ◽  
Robust Adaptive ◽  
Robust Adaptive Controller ◽  
Control Failures

This paper describes a robust adaptive controller based on specified region pole assignment for flexible hypersonic vehicle. The dynamic model of air-breathing hypersonic vehicle retains features including flexible effects, non-minimum phase behavior, model uncertainties, and strong couplings between flight dynamic and engine. To track velocity and altitude commands, robust controller based on specified region pole assignment is used to make unstable modes of open-loop system stable and guarantee dynamic performance of attitude. Meanwhile adaptive controller is proposed to solve tracking problems when existing control failures or saturation. The simulation results demonstrate that the proposed controller achieves excellent dynamic performance while the engine operates normally.

Robust Adaptive Controller for the Diesel Engine Air Path with Input Saturation

2019 ◽  
Vol 17 (10) ◽  
pp. 2541-2549 ◽  
Author(s):  
Samia Larguech ◽  
Sinda Aloui ◽  
Olivier Pagès ◽  
Ahmed El Hajjaji ◽  
Abdessattar Chaari
Keyword(s):  
Diesel Engine ◽  
Input Saturation ◽  
Adaptive Controller ◽  
Robust Adaptive ◽  
Robust Adaptive Controller
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