JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 26 Issue 4
July 2011
Article Contents
ZHU Gao-zhong. Research on converter recessive fault diagnosis based on information fusion technology[J]. Journal of Light Industry, 2011, 26(4): 109-112. doi: 10.3969/j.issn.1004-1478.2011.04.026
Citation: ZHU Gao-zhong. Research on converter recessive fault diagnosis based on information fusion technology[J]. Journal of Light Industry, 2011, 26(4): 109-112. doi: 10.3969/j.issn.1004-1478.2011.04.026 shu

Research on converter recessive fault diagnosis based on information fusion technology

  • Received Date: 2011-03-01
    Available Online: 2011-07-15
  • To solve the problem that by using common fault diagnosis method of motor in frequency-conversion speed-regulation system it is difficult to judge fault types,the method of fault diagonisis based on D-S evidence theory is used,which can reduce uncertainty in fault diagnosis.The fault of converter in the asymmetrical condition is identified from analysis result of three-phase voltage sensors and three-phase current sensors.The fault of the induction motors is identified by the fusion result of three phase stator current.Then the D-S evidence theory is used to fuse and calculate fault features data so as to identify fault.The experiment of diagnosis test showed the method improves precision of fault diagnosis of motor and can meet real-time requirement of diagnosis.
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