Nonlinear Adaptive Control of a Chemical Reactor Using Singular Perturbation Techniques

1992 ◽  
Vol 25 (5) ◽  
pp. 125-130
Author(s):  
J. Alvarez ◽  
E. Aranda
Keyword(s):  
Adaptive Control ◽  
Singular Perturbation ◽  
Chemical Reactor ◽  
Perturbation Techniques ◽  
Nonlinear Adaptive Control

Enhanced Composite Nonlinear Control Technique using Adaptive Control for Nonlinear Delayed Systems

2020 ◽  
Vol 13 (3) ◽  
pp. 396-404
Author(s):  
Sonal Singh ◽  
Shubhi Purwar
Keyword(s):  
Adaptive Control ◽  
Actuator Saturation ◽  
Input Saturation ◽  
Chemical Reactor ◽  
Control Technique ◽  
Control Law ◽  
Nonlinear Feedback ◽  
Composite Nonlinear Feedback ◽  
Delayed Systems ◽  
Analysis Of Stability

Background and Introduction: The proposed control law is designed to provide fast reference tracking with minimal overshoot and to minimize the effect of unknown nonlinearities and external disturbances. Methods: In this work, an enhanced composite nonlinear feedback technique using adaptive control is developed for a nonlinear delayed system subjected to input saturation and exogenous disturbances. It ensures that the plant response is not affected by adverse effect of actuator saturation, unknown time delay and unknown nonlinearities/ disturbances. The analysis of stability is done by Lyapunov-Krasovskii functional that guarantees asymptotical stability. Results: The proposed control law is validated by its implementation on exothermic chemical reactor. MATLAB figures are provided to compare the results. Conclusion: The simulation results of the proposed controller are compared with the conventional composite nonlinear feedback control which illustrates the efficiency of the proposed controller.

Nonlinear adaptive control of spacecraft maneuvers

1997 ◽  
Author(s):  
John Junkins ◽  
Maruthi Akella ◽  
Rush Robinett ◽  
John Junkins ◽  
Maruthi Akella ◽  
...  
Keyword(s):  
Adaptive Control ◽  
Nonlinear Adaptive Control
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