Hybrid bond graph

Hybrid bond graph

Fault diagnosis and remaining useful life prediction of multiple deteriorating components in hybrid dynamical system

Published in Stein Haugen, Anne Barros, Coen van Gulijk, Trond Kongsvik, Jan Erik Vinnem, Safety and Reliability – Safe Societies in a Changing World, 2018

Om Prakash, A.K. Samantaray, R. Bhattacharyya

Recently, many works have been published using hybrid bond graph (HBG) technique with applications to modeling, control and FD of HDS (Narasimhan & Biswas, 2007; Wang et al. 2013; Borutzky, 2015; Low et al., 2010; Ghoshal et al., 2012; Levy et al., 2015). But, very limited works (Yu et al., 2015; Daigal et al., 2015) deal with RUL prediction along with FD of HDS. In (Yu et al., 2015; Daigal et al., 2015), HBG technique is utilized for system modelling and FD; however particle filtering/Monte Carlo technique is applied for identification of degradation rate. According to available literatures for HDS, no work is found related to RUL prediction of sequentially occurring multiple faults, where new fault’s symptoms may be masked or compensated by the already existing degradations in other components.

Dynamic performance of a Skystream wind turbine: A bond graph approach

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Journal Information

Published in Cogent Engineering, 2019

Gilberto Gonzalez-A, Noe Barrera-G, Gerardo Ayala, J. Aaron Padilla, David Alvarado-Z

In this section, the diodes are modelled by Hybrid Bond Graph Methodology (HBGM). Hybrid systems are continuous dynamics and discrete events modelled by modes. Hybrid Bond Graph (HBG) is an extension of Bond Graph, it has been applied to model fast switching in solid-state elements: diodes, transistors, Mosfets, etc., which are characterized by a fast dynamic behavior.

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Fault diagnosis and remaining useful life prediction of multiple deteriorating components in hybrid dynamical system

Dynamic performance of a Skystream wind turbine: A bond graph approach