scholarly journals Output Feedback Concurrent Learning Model Reference Adaptive Control

2015 ◽  
Author(s):  
John F. Quindlen ◽  
Girish Chowdhary ◽  
Jonathan P. How
Keyword(s):  
Adaptive Control ◽  
Output Feedback ◽  
Learning Model ◽  
Model Reference Adaptive Control ◽  
Model Reference ◽  
Concurrent Learning ◽  
Model Reference Adaptive

Output-Feedback Model Reference Adaptive Control for Continuous State Delay Systems

2003 ◽  
Vol 125 (2) ◽  
pp. 257-261 ◽  
Author(s):  
Boris M. Mirkin ◽  
Per-Olof Gutman
Keyword(s):  
Adaptive Control ◽  
Output Feedback ◽  
Reference Model ◽  
Main Idea ◽  
Functional Method ◽  
Model Reference Adaptive Control ◽  
Delay Systems ◽  
Model Reference ◽  
Continuous State ◽  
Model Reference Adaptive

This paper develops a new approach for the output model reference adaptive control of linear continuous-time plants with state delays. The main idea is to include into the control law a feedforward component that compensates for the delayed states, in addition to output feedback. The feedforward is formed by special adaptively adjusted prefilters as a function of the delayed state of the reference model. The output feedback component is designed as for a plant without delay, but applied to the time-delay plant. Such a controller structure containing adaptive output feedback and adaptive prefilters from the delayed reference model makes it possible to solve the problem of adaptive exact asymptotic output tracking under parametric uncertainties. The stability is analyzed using the Lyapunov-Krasovskii functional method. A simulated example illustrates the new controller.

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