- Tytuł:
- Fault tolerant multicontrollers for nonlinear systems: A real validation on a chemical process
- Autorzy:
-
Mejdi, Sondess
Messaoud, Anis
Ben Abdennour, Ridha - Powiązania:
- https://bibliotekanauki.pl/articles/331163.pdf
- Data publikacji:
- 2020
- Wydawca:
- Uniwersytet Zielonogórski. Oficyna Wydawnicza
- Tematy:
-
multicontroller
experimental validation
transesterification reactor
discrete unknown input multiobserver
fault tolerant control
sensor fault estimation
weryfikacja doświadczalna
sterowanie tolerujące uszkodzenia
błąd czujnika
estymacja błędu - Opis:
- An active sensor fault tolerant controller for nonlinear systems represented by a decoupled multimodel is proposed. Active fault tolerant control requires accurate fault estimation. Thus, to estimate both state variables and sensor faults, a discrete unknown input multiobserver, based on an augmented state multimodel, is designed. The multiobserver gains are computed by solving linear matrix inequalities with equality constraints. A multicontrol strategy is proposed for the compensation of the sensor fault and recovering the desired performances. This strategy integrates a bank of controllers, corresponding to a set of partial models, to generate a set of control laws compensating the fault effect. Then, a switching strategy between the generated local control laws is established in order to apply the most suitable control law that tolerates the fault and maintains good closed loop performances. The effectiveness of the proposed strategy is proven through a numerical example and also through a real time application on a chemical reactor. The obtained results confirm satisfactory closed loop performance in terms of trajectory tracking and fault tolerance.
- Źródło:
-
International Journal of Applied Mathematics and Computer Science; 2020, 30, 1; 61-74
1641-876X
2083-8492 - Pojawia się w:
- International Journal of Applied Mathematics and Computer Science
- Dostawca treści:
- Biblioteka Nauki
Artykuł