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

fYear

2011

fDate

12-15 Dec. 2011

Firstpage

5419

Lastpage

5424

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control and European Control Conference (CDC-ECC), 2011 50th IEEE Conference on

Conference_Location

Orlando, FL

ISSN

0743-1546

Print_ISBN

978-1-61284-800-6

Electronic_ISBN

0743-1546

Type

conf

DOI

10.1109/CDC.2011.6161416

Filename

6161416