Online fault diagnosis using recursive subspace identification: Application to a dam-gallery open channel system

Autor: Eric Duviella, Laurent Bako, A. Akhenak, Stéphane Lecoeuche
Rok vydání: 2013
Předmět:
Zdroj: Control Engineering Practice. 21:797-806
ISSN: 0967-0661
DOI: 10.1016/j.conengprac.2013.02.013
Popis: The paper presents an online strategy for sensor and/or actuator fault detection and isolation applied to a dam-gallery. A recursive subspace identification algorithm is used to estimate the dam-gallery model parameters. The main contribution consists in developing a specific identification scheme, insensitive to a certain type of faults. That is, the identified parameters are invariant to the faults. A fault estimation procedure is proposed to detect potential faults. The proposed approach appears to be suitable for open channel systems for which the characteristics are not easily measurable.
Databáze: OpenAIRE