Model-Based Actuator Fault Accommodation for Distributed Parameter Systems Represented by Coupled Linear PDES

Abstract

A model-based fault detection and accommodation scheme is introduced for a class of distributed parameter systems (DPS) described by coupled partial differential equations (PDEs). Actuator faults at the boundary condition are considered. A detection observer is proposed based on the linear PDE representation of the DPS by assuming that the state information is available. Upon detecting a fault, an adaptive term is added to the observer to estimate the fault parameter vector which is utilized for fault accommodation by reconfiguring the control input. An update law is proposed to estimate the unknown fault parameter vector. An explicit formula is proposed to estimate the time-to-accommodation (TTA) by using the parameter vector. Finally, an example to demonstrate the effectiveness of the proposed scheme is included.

Meeting Name

2015 IEEE Conference on Control and Applications, CCA 2015 (2015: Sep. 21-23, Sydney, Australia)

Department(s)

Electrical and Computer Engineering

Comments

Research supported in part by NSF I/UCRC on Intelligent Maintenance Systems and Intelligent Systems Center.

Keywords and Phrases

Actuators; Boundary conditions; Partial differential equations; Accommodation; Actuator fault accommodation; Coupled partial differential equations; Distributed parameter systems; Fault accommodation; Fault parameter vectors; Model-based fault detection; State information; Fault detection

International Standard Book Number (ISBN)

978-1-4799-7787-1

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Sep 2015

Link to Full Text

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