Approach to fault detection of time‐delay systems using functional observers

Autor:	Hieu Trinh, Tyrone Fernando, Dinh Cong Huong, H. M. Tran
Rok vydání:	2014
Předmět:	Engineering Transformation (function) Observer (quantum physics) Control theory business.industry State vector Observable Function (mathematics) State observer Electrical and Electronic Engineering Residual business Fault detection and isolation
Zdroj:	Electronics Letters. 50:1132-1134
ISSN:	1350-911X 0013-5194
DOI:	10.1049/el.2014.1480
Popis:	A new methodology is reported for designing functional observers to detect actuator faults of a class of time-delay systems where the matrix pair ( A , C ) is not observable. First, a generalised state transformation is used to transform the system into new coordinates where the delay term associated with the state vector is injected into the system's output and input. Then, a minimum-order functional observer is designed to construct a residual function that can trigger system faults. The finding is significant as it is now possible to detect faults of time-delay systems where the pair ( A , C ) is not required to be observable. A numerical example is given to illustrate the effectiveness of the proposed design approach.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::44dff750f332f81db82d93b81335496d https://doi.org/10.1049/el.2014.1480 Zobrazit plný text záznamu Plný text