Wszystkie pola: fault tolerant control - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Fault tolerant control design for polytopic LPV systems
Autorzy:: Rodrigues, M.
Theilliol, D.
Aberkane, S.
Sauter, D.
Powiązania:: https://bibliotekanauki.pl/articles/911248.pdf
Data publikacji:: 2007
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: sterowanie tolerujące uszkodzenia
interfejs lokalnego zarządzania
liniowa nierówność macierzowa
fault tolerant control
multiple actuator failures
polytopic LPV systems
LMI
static output feedback
stability
Opis:: This paper deals with a Fault Tolerant Control (FTC) strategy for polytopic Linear Parameter Varying (LPV) systems. The main contribution consists in the design of a Static Output Feedback (SOF) dedicated to such systems in the presence of multiple actuator faults/failures. The controllers are synthesized through Linear Matrix Inequalities (LMIs) in both faultfree and faulty cases in order to preserve the system closed-loop stability. Hence, this paper provides a new sufficient (but not necessary) condition for the solvability of the stabilizing output feedback control problem. An example illustrates the effectiveness and performances of the proposed FTC method.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2007, 17, 1; 27-37
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A mixed active and passive GLR test for a fault tolerant control system
Autorzy:: Jamouli, H.
El Hail, M. A.
Sauter, D.
Powiązania:: https://bibliotekanauki.pl/articles/331386.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: filtr Kalmana
system tolerujący uszkodzenia
generalized likelihood ratio
sequential jumps detection
two-stage Kalman filter
fault tolerant control system
Opis:: This paper presents an adaptive Generalized Likelihood Ratio (GLR) test for multiple Faults Detection and Isolation (FDI) in stochastic linear dynamic systems. Based on the work of Willsky and Jones (1976), we propose a modified generalized likelihood ratio test, allowing detection, isolation and estimation of multiple sequential faults. Our contribution aims to maximise the good decision rate of fault detection using another updating strategy. This is based on a reference model updated on-line after each detection and isolation of one fault. To reduce the computational requirement, the passive GLR test will be derived from a state estimator designed on a fixed reference model directly sensitive to system changes. We will show that active and passive GLR tests will be mixed and give interesting results compared with the GLR of Willsky and Jones (1976), and that they can be easily integrated in a reconfigurable Fault-Tolerant Control System (FTCS) to asymptotically recover the nominal system performances of the jump-free system.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2012, 22, 1; 9-23
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Model-free reconfiguration mechanism for fault tolerance
Autorzy:: Jain, T.
Yamé, J. J.
Sauter, D.
Powiązania:: https://bibliotekanauki.pl/articles/331372.pdf
Data publikacji:: 2012
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: sterowanie tolerujące uszkodzenia
sterowanie ślizgowe
fault tolerant control
control performance
behavioral theory
switching control
Opis:: The problem of fault tolerant control is studied from the behavioral point of view. In this mathematical framework, the concept of interconnection among the variables describing the system is a key point. The problem is that the behavior we intend to control is not known. Therefore, we are interested in designing a fault accommodation scheme for an unknown behavior through an appropriate behavioral interconnection. Here we deal simply with the trajectories that are generated by the system in real time. These trajectories determine the behavior of a system in various (faulty/healthy) modes. Based on the desired interconnected behavior, only the trajectories that obey certain laws are selected. These laws, representing the desired behavior, can indeed be achieved by a regular interconnection. Thus, when the trajectories do not belong to a certain desired behavior, it is considered to be due to the occurrence of a fault in the system. The vantage point is that the fault tolerant control problem now becomes completely a model-free scheme. Moreover, no explicit fault diagnosis module is required in our approach. The proposed fault tolerance mechanism is illustrated on an aircraft during the landing phase.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2012, 22, 1; 125-137
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Fault diagnosis of networked control systems
Autorzy:: Aubrun, C.
Sauter, D.
Yamé, J.
Powiązania:: https://bibliotekanauki.pl/articles/929885.pdf
Data publikacji:: 2008
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: sterowanie siecią
system sterowania
diagnostyka uszkodzeń
sterowanie odporne na błędy
straty pakietów
komunikacja ograniczona
networked control systems
fault diagnosis
fault tolerant control
network-induced time delays
packet losses
limited communication
Opis:: Networked Control Systems (NCSs) deal with feedback control systems with loops closed via data communication networks. Control over a network has many advantages compared with traditionally controlled systems, such as a lower implementation cost, reduced wiring, simpler installation and maintenance and higher reliability. Nevertheless, the network-induced delay, packet dropout, asynchronous behavior and other specificities of networks will degrade the performance of closed-loop systems. In this context, it is necessary to develop a new theory for systems that operate in a distributed and asynchronous environment. Research on Fault Detection and Isolation (FDI) for NCSs has received increasing attention in recent years. This paper reviews the state of the art in this topic.
Źródło:: International Journal of Applied Mathematics and Computer Science; 2008, 18, 4; 525-537
1641-876X
2083-8492
Pojawia się w:: International Journal of Applied Mathematics and Computer Science
Dostawca treści:: Biblioteka Nauki

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