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Root cause analysis of actuator fault based on invertibility of interconnected system

Zhang, Mei and Li, Ze-tao and Cabassud, Michel and Dahhou, Boutaïeb Root cause analysis of actuator fault based on invertibility of interconnected system. (2017) International Journal of Modelling Identification and Control, 27 (4). 256-270. ISSN 1746-6172

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Official URL: https://doi.org/10.1504/IJMIC.2017.10005535


This paper addresses the problem of root cause analysis(RCA)of actuator fault. By considering an actuator as an individual dynamic subsystem connected with process dynamic subsystem in cascade, an interconnected system is then constituted. The fault detection and diagnosis (FDD) algorithm is carried out in actuator subsystem and aims at identifying the root causes of actuator faults. According to real plant, outputs of the actuator subsystem are assumed inaccessible and are reconstructed by measurements of the global system, thus providing a means of monitoring and diagnosis of the plant at both local and global level. A condition of invertibility of the interconnected system is first developed to guarantee that faults occurring in the actuator subsystem will affect the measured output of the global system distinguishably. For that, a necessary and sufficient condition is proposed to ensure invertibility of the interconnected system. Effectiveness of the proposed approach is demonstrated on an intensified HEX reactor.

Item Type:Article
Additional Information:Thanks to Inderscience Enterprises Ltd editor. The original PDF of the article can be found at International Journal of Modelling Identification and Control website : https://www.inderscienceonline.com/doi/pdf/10.1504/IJMIC.2017.084723
HAL Id:hal-01763870
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Guizhou University (CHINA)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Institut National des Sciences Appliquées de Toulouse - INSA (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
National Natural Science Foundation of China No. 61540067 - Guizhou Big Data Collaborative Research Innovation Center, No. Qian jiao He Xie Tong Chuang Xin Zi 2014 (02) - IDEX-UNITI toulouse - 'SUPERHEX' project
Deposited On:11 Apr 2018 12:56

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