Dynamic safety margin in fault-tolerant predictive controller

Author

Abdel-Geliel, M. ; Badreddin, E. ; Gambier, A.

Author_Institution

Autom. Lab, Mannheim Univ.

fYear

2005

fDate

28-31 Aug. 2005

Firstpage

803

Lastpage

808

Abstract

Dynamic safety margin (DSM) is a new performance index used to measure the distance between a predefined safety boundary in the state space and the system trajectory as it evolves. Controller design based on DSM is important to maintain a predefined margin of safety during the transient and in the presence of large disturbances particularly in safety-critical systems. In this paper, a fault tolerant control design, using predictive controller based on DSM, to recover system performance after some system faults is discussed. In addition, real-time results of a control system, which was implemented in a two-tank system, are presented to demonstrate the fruitfulness of this design

Keywords

control system synthesis; fault tolerance; nonlinear control systems; performance index; predictive control; state-space methods; distance measurement; dynamic safety margin; fault tolerant control design; performance index; predictive controller; safety boundary; safety-critical system; state space; system faults; system recovery; system trajectory; two-tank system; Automatic control; Automation; Control systems; Fault tolerance; Fault tolerant systems; Optimal control; Performance analysis; Predictive models; Safety; State-space methods;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, 2005. CCA 2005. Proceedings of 2005 IEEE Conference on

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-9354-6

Type

conf

DOI

10.1109/CCA.2005.1507227

Filename

1507227