Distributed fault-tolerant control of large-scale systems: An active fault diagnosis approach
File(s)
Author(s)
Boem, F
Gallo, A
Raimondo, DM
Parisini, T
Type
Journal Article
Abstract
The paper proposes a methodology to effectively address the increasingly important problem of distributed faulttolerant control for large-scale interconnected systems. The approach dealt with combines, in a holistic way, a distributed fault detection and isolation algorithm with a specific tube-based model predictive control scheme. A distributed fault-tolerant control strategy is illustrated to guarantee overall stability and constraint satisfaction even after the occurrence of a fault. In particular, each subsystem is controlled and monitored by a local unit. The fault diagnosis component consists of a passive set-based fault detection algorithm and an active fault isolation one, yielding fault-isolability subject to local input and state constraints. The distributed active fault isolation module - thanks to a modification of the local inputs - allows to isolate the fault that has occurred avoiding the usual drawback of controllers that possibly hide the effect of the faults. The Active Fault Isolation method is used as a decision support tool for the fault tolerant control strategy after fault detection. The distributed design of the tube-based model predictive control allows the possible disconnection of faulty subsystems or the reconfiguration of local controllers after fault isolation. Simulation results on a well-known power network benchmark show the effectiveness of the proposed methodology.
Date Issued
2020-03-01
Date Acceptance
2019-04-01
ISSN
2325-5870
Publisher
IEEE
Start Page
288
End Page
301
Journal / Book Title
IEEE Transactions on Control of Network Systems
Volume
7
Issue
1
Copyright Statement
© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. See http://www.ieee.org/publications_standards/publications/rights/index.html for more information.
Subjects
Science & Technology
Technology
Automation & Control Systems
Computer Science, Information Systems
Computer Science
Active fault diagnosis
decentralized control
fault-tolerant control (FTC)
interconnected systems
optimal control
MODEL-PREDICTIVE CONTROL
INPUT-DESIGN
STATE ESTIMATION
INVARIANT-SETS
RECONFIGURATION
DISCRIMINATION
ACCOMMODATION
STRATEGY
FEEDBACK
MPC
0102 Applied Mathematics
0805 Distributed Computing
0906 Electrical and Electronic Engineering
Publication Status
Published
Date Publish Online
2019-04-26