Creator:

Kowalczuk, Zdzisław ; Oliński, Krzysztof E.

Contributor:

Korbicz, Józef (1951- ) - ed. ; Sauter, Dominique - ed.

Title:

Suboptimal fault tolerant control design with the use of discrete optimization

Subtitle:

.

Group publication title:

AMCS, volume 18 (2008)

Subject and Keywords:

optimal control ; fault tolerant systems ; nonlinear models ; operations research ; discrete optimization

Abstract:

This paper presents a concept of designing fault tolerant control systems with the use of suboptimal methods. We assume that a given (nonlinear) dynamical process is described in a state space. The method consists in searching (at the off-line stage) for a trajectory of operational points of the system state space. The sought trajectory can be constrained by certain conditions, which can express faults or failures already detected. ; Within this approach, we are able to use the autonomous dynamics of the process in order to minimize a control cost index (a sub-optimality property). The search itself is based on finding a cheapest path in a graph structure, which represents the system?s dynamics described in the state space. Such a cheapest path (if it exists) represents the sought trajectory. Another (on-line) design stage consists in tracking this trajectory by an executive controller.

Publisher:

Zielona Góra: Uniwersytet Zielonogórski

Date:

2008

Resource Type:

artykuł

DOI:

10.2478/v10006-008-0049-0

Pages:

561-568

Source:

AMCS, volume 18, number 4 (2008) ; click here to follow the link

Language:

eng

License CC BY 4.0:

click here to follow the link

Rights:

Biblioteka Uniwersytetu Zielonogórskiego