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Fault diagnosis based on directed factor graph for mode switching spacecraft power system

  • School of Astronautics, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Spacecraft power system is a complex, highly interconnected hybrid system that exhibit nonlinear and mode switching behaviors. Directed factor graph is an inference model for fault diagnosis using probabilistic reasoning techniques. A novel approach for constructing the directed factor graph structure based on hybrid bond graph model for fault diagnosis in spacecraft power system is proposed. The cause-effect relations between system components status and fault symptoms are identified and concluded through causal path analysis on hybrid bond graph model. A power supply module of a spacecraft power system is provided as case study to show the feasibility and validity of the proposed method.

Original languageEnglish
Title of host publicationProceedings - 2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011
Pages1957-1961
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011, Jointly with the 2011 7th International Conference on Natural Computation, ICNC'11 - Shanghai, China
Duration: 26 Jul 201128 Jul 2011

Publication series

NameProceedings - 2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011
Volume3

Conference

Conference2011 8th International Conference on Fuzzy Systems and Knowledge Discovery, FSKD 2011, Jointly with the 2011 7th International Conference on Natural Computation, ICNC'11
Country/TerritoryChina
CityShanghai
Period26/07/1128/07/11

Keywords

  • cause-effect relation
  • directed factor graph
  • fault diagnosis
  • hybrid bond graph
  • hybrid systems
  • spacecraft power system

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