Robust Adaptive Control Scheme for Discrete-Time System With Actuator Failures-Reference-Cited by-同舟云学术

Robust Adaptive Control Scheme for Discrete-Time System With Actuator Failures

Published:2004-09-04 Issue:3 Volume:127 Page:520-526
ISSN:0022-0434
Container-title:Journal of Dynamic Systems, Measurement, and Control
language:en
Short-container-title:

Author:

Fei Juntao¹,Chen Shuhao¹,Tao Gang¹,Joshi Suresh M.²

Affiliation:

1. Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22903

2. NASA Langley Research Center, Hampton, VA 23681

Abstract

A robust adaptive control approach using output feedback for output tracking is developed for discrete-time linear time-invariant systems with uncertain failures of redundant actuators in the presence of the unmodeled dynamics and bounded output disturbance. Such actuator failures are characterized by some unknown inputs stuck at some unknown fixed values at unknown time instants. Technical issues such as plant-model output matching, adaptive controller structure, adaptive parameter update laws, stability and tracking analysis, and robustness of system performance are solved for the discrete-time adaptive actuator failure compensation problem. A case study is conducted for adaptive compensation of rudder servomechanism failures of a Boeing 747 dynamic model presented in discrete time, verifying the desired adaptive system performance in the presence of uncertain actuator failures.

Publisher

ASME International

Subject

Computer Science Applications,Mechanical Engineering,Instrumentation,Information Systems,Control and Systems Engineering

Link

http://asmedigitalcollection.asme.org/dynamicsystems/article-pdf/127/3/520/5488547/520_1.pdf

Reference16 articles.

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4. Multivariable Adaptive Algorithms for Reconfigurable Flight Control;Bodson;IEEE Trans. Control Syst. Technol.

5. A Stable Scheme for Automatic Control Reconfiguration in the Presence of Actuator Failures;Boskovic

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