A New Stator Winding Inter-Turn Short Circuit Fault Detection Method For Brushless Doubly Fed Induction Machine

Mojtaba Afshar, Salman Abdi Jalebi, Abolfazl Mortazavizadeh, Poria Fajri, Mohammad Ebrahimi

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Abstract

The brushless Doubly Fed Induction Machine (BDFIM) with high reliability and robust structure demonstrates technical and commercial advantages both as a generator and motor for variable speed drive applications. As a generator it is particularly attractive to be used in offshore wind turbines where reliability improvement and maintenance cost reduction are the key factors in wind power market growth. As a motor it can be utilized in application requiring adjustable speed operation. Inter-turn short circuit fault is one of the most frequent electrical faults in electric machines, which can also be the cause of other stator winding faults in the machine, hence its early detection can significantly reduce the maintenance cost and improve reliability. In this paper a novel fault detection method for inter-turn short circuit fault is proposed for the BDFIM based on the discrete wavelet transform of the stator winding currents. The analytical winding function method as well as the finite element analysis of an experimental D180 BDFIM is used in order to verify the proposed fault detection method.

Original languageEnglish
Pages223-228
Number of pages6
DOIs
Publication statusPublished - 30 Jul 2020
EventIEEE 29th International Symposium on Industrial Electronics (ISIE) - Delft, Netherlands
Duration: 17 Jun 2020 → …

Conference

ConferenceIEEE 29th International Symposium on Industrial Electronics (ISIE)
CountryNetherlands
CityDelft
Period17/06/20 → …

Keywords

  • Brushless Doubly Fed Induction Machin (BDFIM)
  • Motor Current Signature Analysis (MCSA)
  • condition monitoring
  • fault detection
  • signal processing
  • wavelet transform.

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