Title :
M-MRAC for nonlinear systems with bounded disturbances
Author :
Stepanyan, Vahram ; Krishnakumar, Kalmanje
Author_Institution :
Mission Critical Technol. Inc., NASA Ames Res. Center, Moffett Field, CA, USA
Abstract :
This paper presents design and performance analysis of a modified reference model MRAC (M-MRAC) architecture for a class of multi-input multi-output uncertain nonlinear systems in the presence of bounded disturbances. M-MRAC incorporates an error feedback in the reference model definition, which allows for fast adaptation without generating high frequency oscillations in the control signal, which closely follows the certainty equivalent control signal. The benefits of the method are demonstrated via a simulation example of an aircraft´s wing rock motion.
Keywords :
MIMO systems; feedback; model reference adaptive control systems; nonlinear systems; oscillations; uncertain systems; MRAC architecture; aircraft wing rock motion; bounded disturbances; control signal; equivalent control signal; error feedback; high frequency oscillations; model reference adaptive control; modified reference model; multiinput multioutput uncertain nonlinear systems; performance analysis; Adaptation models; Adaptive control; Control systems; Equations; Mathematical model; Oscillators; Transient analysis;
Conference_Titel :
Decision and Control and European Control Conference (CDC-ECC), 2011 50th IEEE Conference on
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-61284-800-6
Electronic_ISBN :
0743-1546
DOI :
10.1109/CDC.2011.6161416
