Short-circuit current of wind turbines with doubly fed induction generator

Johan Morren, Sjoerd W. H. de Haan

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537 Citations (Scopus)

Abstract

The short-circuit current contribution of wind turbines has not received much attention so far. This paper considers the short-circuit behavior, especially the short-circuit current of wind turbines with a doubly fed induction generator. Mostly, these wind turbines have a crowbar to protect the power electronic converter that is connected to the rotor windings of the induction generator. First, the maximum value of the short-circuit current of a conventional induction machine is determined. The differences between a crowbar-protected doubly fed induction generator and a conventional induction generator are highlighted and approximate equations for the maximum short-circuit current of a doubly fed induction generator are determined. The values obtained in this way are compared to the values obtained from time domain simulations. The differences are less then 15%
Original languageEnglish
Pages (from-to)174-180
Number of pages7
JournalIEEE Transactions on Energy Conversion
Volume22
Issue number1
DOIs
Publication statusPublished - Mar 2007
Externally publishedYes

Keywords

  • AC generators
  • protection
  • short circuit currents
  • wind power generation

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