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Search method for Wind turbine gearbox failures based on grey and fuzzy fault tree analysis

  • Wang Shoubin*
  • , Li Chengwei
  • , Sun Xiaogang
  • *Corresponding author for this work
  • School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

According to the characteristics of complicated structure as well as failure probability for shortage, failure mechanism is not clear, the fault degree are grey and fuzzy properties in Wind turbine gearbox transmission system. The grey and fuzzy theory were introduced into fault tree analysis method and the fault tree analysis method of Wind turbine gearbox transmission system was proposed based on grey and T-S fuzzy fault tree analysis. The method used fuzzy Numbers to describe system failure probability to solve the failure probability of uncertainty. Using T-S logic fuzzy gate to solve the connections and using grey correlation degree to get fault search order. Example of fault tree analysis of the Wind turbine gear-box system was given for illustration. Results show that the method is feasible.

Original languageEnglish
Pages (from-to)901-906
Number of pages6
JournalJournal of Applied Sciences
Volume13
Issue number6
DOIs
StatePublished - 2013
Externally publishedYes

Keywords

  • Fault diagnosis
  • Fault tree
  • Fuzzy number
  • Gearbox
  • Grey theory
  • Wind turbine

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