Supervisory control after perturbation

Author

Declerck, Philippe ; Guihur, Roland

Author_Institution

LISA, Univ. d´´Angers, France

Volume

3

fYear

2000

fDate

2000

Firstpage

2192

Abstract

Discrete event systems undergo perturbations, such as failures, that disrupt the control system and reduce the anticipation capacities of the future evolution of the process. Using the (max,+) algebra, processes modelled by a timed event graph may be represented by a linear model. The knowledge of the model and of the initial conditions enable one to characterize the state vector with a state equation iteration, but perturbations may generate a misappreciation of the state vector. This paper estimates the unknown state in order to predict the output trajectory and to calculate the control when the state vector is unknown

Keywords

algebra; discrete event systems; equations; graph theory; iterative methods; optimal control; perturbation techniques; predictive control; state estimation; (max,+) algebra; anticipation capacity; control system disruptions; discrete event systems; initial conditions; linear model; output trajectory prediction; perturbations; process evolution; state equation iteration; state vector; supervisory control; system failure; timed event graph; unknown state estimation; Algebra; Character generation; Control systems; Delay; Discrete event systems; Equations; Predictive models; State estimation; Supervisory control; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Systems, Man, and Cybernetics, 2000 IEEE International Conference on

Conference_Location

Nashville, TN

ISSN

1062-922X

Print_ISBN

0-7803-6583-6

Type

conf

DOI

10.1109/ICSMC.2000.886441

Filename

886441