Multi-Physical Time- and Frequency-Domain Fault Detection and Isolation Technique for Power-Electronic Converters in DFIG Wind Turbines

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Abstract

A multi-physical time- and frequency-domain fault detection and isolation (FDI) method for power-electronic converters (PECs) of wind turbines is presented in this paper, with focus on open-circuit faults and the doubly-fed induction generator (DFIG) drivetrain topology. In order to reduce the risk of false alarms, the proposed approach combines fault indicators based on time- and frequency-domain analysis of the electrical signals, as well as frequency-domain analysis of vibration signals. The effectiveness of the method is illustrated on test bench data recorded in different healthy and faulty operating modes.
Original languageEnglish
Article number9184957
Pages (from-to)3793-3802
Number of pages10
JournalIEEE Transaction on Power Electronics
Volume36
Issue number4
DOIs
Publication statusPublished - Apr 2021

Keywords

  • Condition monitoring
  • semiconductor reliability
  • DFIG
  • wind turbines
  • open-circuit faults
  • fault diagnostic and isolation
  • power electronic converter

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