- Tytuł:
- Diagnosis of hybrid systems through bond graph, observers and timed automata
- Autorzy:
-
Mhamdi, Lotfi
Achbi, Mohammed Said
Dhouibi, Hedi
Kechida, Sihem - Powiązania:
- https://bibliotekanauki.pl/articles/329496.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Polskie Towarzystwo Diagnostyki Technicznej PAN
- Tematy:
-
bond graph
observer
timed automata
fault diagnosis
fault localization
grafy wiązań
obserwator
automaty czasowe
błędna diagnoza
lokalizacja uszkodzeń - Opis:
- Despite technological advances and progress in industrial systems, the fault diagnosis of a system remains a very important task. In fact an effective diagnosis contributes not only to improved reliability but also to a decrease in maintenance costs. This paper presents an approach to a diagnosis of hybrid systems thanks to the use of Bond Graphs, Observer and Timed Automata. Dynamic models (in normal and failing mode) are generated by an observer based methods as well as through state equations generated by the Bond Graphs model. The procedure of fault localization through a method based on the observer does not allow locating faults with the same signature of failure. Thus the diagnosis technique for the localization of these defects will be based on the time analysis using Timed Automata. The proposed approach is then validated by simulation tests in a two tanks hydraulic system.
- Źródło:
-
Diagnostyka; 2020, 21, 3; 113-125
1641-6414
2449-5220 - Pojawia się w:
- Diagnostyka
- Dostawca treści:
- Biblioteka Nauki
Artykuł