Hamiltonian Bond Graph formalism for generating energetic redundant relations

Garai, Dhaou; Harabi, Rafika El; Bacha, Faouzi

doi:10.1109/ssd49366.2020.9364213

Cited by 4 publications

(1 citation statement)

References 11 publications

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“…Subsequently, D. C. Karnopp and others further developed and improved it to form a systematic theoretical system [1]. Generally, a bond graph is used alone or in combination with other graphical models, functional observers, a statistical decision procedure, etc., to realize the fault diagnosis of mechanical components used in intermediary cooling systems of power plants [2], DC motors [3], stringing machines [4], six-tank systems [5], among others. In addition to using bond graph theory to establish the system fault model to realize equipment state identification and fault diagnosis, Sellami et al established bond graph linear fractional transformation models of an accelerometer based on fault detection and isolation algorithms to minimize false alarms and delays in fault detection [6].…”

Section: Introductionmentioning

confidence: 99%

Fault Diagnosis Using Bond Graphs in an Expert System

Zhou

Jiang

et al. 2022

Energies

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A fault diagnosis method using bond graphs in an expert system is proposed for a reactor coolant system. Firstly, the time causality graph and the variable relationship graph are derived from the bond graph. Secondly, the fault signature matrix is obtained by combining the change relationship of fault parameters. Finally, the fault signature matrix is used as the rule of the inference engine design in the expert system for fault diagnosis. In this paper, the key equipment of the reactor coolant system is used to verify the fault diagnosis method of the bond graph expert system, and the path reasoning relationship between alarms is obtained, which can accurately obtain the deep knowledge required by the operators. A new idea for fault diagnosis in a nuclear power plant’s expert system is provided by this method.

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