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The use of hybrid automata for fault-tolerant control of parametric failures

The use of hybrid automata for fault-tolerant control of parametric failures
The use of hybrid automata for fault-tolerant control of parametric failures
The purpose of this work is to make use of hybrid automata for vibration control reconfiguration under system failures. Fault detection and isolation (FDI) filters are used to monitor an active vibration control system. When system failures occur (specifically parametric faults) the FDI filters detect and identify the specific failure. In this work we are specifically interested in parametric faults such as changes in system physical parameters; however this approach works equally well with additive faults such as sensor or actuator failures. The FDI filter output is used to drive a hybrid automaton, which selects the appropriate controller and FDI filter from a library. The hybrid automata also implements switching between controllers and filters in order to maintain optimal performance under faulty operating conditions. The biggest challenge in developing this system is managing the switching and in maintaining stability during the discontinuous switches. Therefore, in addition to vibration control, the stability associated with switching compensators and FDI filters is studied. Furthermore, the performance of two types of FDI filters is compared: filters based on parameter estimation methods and so called "Beard-Jones" filters. Finally, these simulations help in understanding the use of hybrid automata for fault-tolerant control.
513-521
International Society for Optical Engineering
Byreddy, Chakradhar
d7b68ac8-bec9-4ee3-a6c7-c51507f77773
Frampton, Kenneth D.
94506b25-ed47-4216-8795-9f33a3761cfc
Yongmin, Kim
7512ab79-1b49-4837-b316-a3bac9078036
Inaudi, Daniele
Ecke, Wolfgang
Culshaw, Brian
Peters, Kara J.
Udd, Eric
Byreddy, Chakradhar
d7b68ac8-bec9-4ee3-a6c7-c51507f77773
Frampton, Kenneth D.
94506b25-ed47-4216-8795-9f33a3761cfc
Yongmin, Kim
7512ab79-1b49-4837-b316-a3bac9078036
Inaudi, Daniele
Ecke, Wolfgang
Culshaw, Brian
Peters, Kara J.
Udd, Eric

Byreddy, Chakradhar, Frampton, Kenneth D. and Yongmin, Kim (2006) The use of hybrid automata for fault-tolerant control of parametric failures. Inaudi, Daniele, Ecke, Wolfgang, Culshaw, Brian, Peters, Kara J. and Udd, Eric (eds.) In Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications. vol. 6167, International Society for Optical Engineering. pp. 513-521 . (doi:10.1117/12.658515).

Record type: Conference or Workshop Item (Paper)

Abstract

The purpose of this work is to make use of hybrid automata for vibration control reconfiguration under system failures. Fault detection and isolation (FDI) filters are used to monitor an active vibration control system. When system failures occur (specifically parametric faults) the FDI filters detect and identify the specific failure. In this work we are specifically interested in parametric faults such as changes in system physical parameters; however this approach works equally well with additive faults such as sensor or actuator failures. The FDI filter output is used to drive a hybrid automaton, which selects the appropriate controller and FDI filter from a library. The hybrid automata also implements switching between controllers and filters in order to maintain optimal performance under faulty operating conditions. The biggest challenge in developing this system is managing the switching and in maintaining stability during the discontinuous switches. Therefore, in addition to vibration control, the stability associated with switching compensators and FDI filters is studied. Furthermore, the performance of two types of FDI filters is compared: filters based on parameter estimation methods and so called "Beard-Jones" filters. Finally, these simulations help in understanding the use of hybrid automata for fault-tolerant control.

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More information

Published date: 2006
Venue - Dates: Smart Structures and Materials 2006: Smart Sensor Monitoring Systems and Applications, 2006-02-26 - 2006-03-02

Identifiers

Local EPrints ID: 43446
URI: https://eprints.soton.ac.uk/id/eprint/43446
PURE UUID: 49d7c6b0-d138-40a2-846f-32ca626a1774

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Date deposited: 15 Feb 2007
Last modified: 13 Mar 2019 21:09

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