A series-dynamic-resistor-based converter protection scheme for doubly-fed induction generator during various fault conditions

Jin Yang, John Fletcher, John O'Reilly

Research output: Contribution to journalArticle

Abstract

This paper proposes a new converter protection method, primarily based on a series dynamic resistor (SDR) that avoids the doubly-fed induction generator (DFIG) control being disabled by crowbar protection during fault conditions. A combined converter protection scheme based on the proposed SDR and conventional crowbar is analyzed and discussed. The main protection advantages are due to the series topology when compared with crowbar and dc-chopper protection. Various fault overcurrent conditions (both symmetrical and asymmetrical) are analyzed and used to design the protection in detail, including the switching strategy and coordination with crowbar, and resistance value calculations. PSCAD/EMTDC simulation results show that the proposed method is advantageous for fault overcurrent protection, especially for asymmetrical faults, in which the traditional crowbar protection may malfunction.
Original languageEnglish
Article number5404230
Pages (from-to)422-432
Number of pages11
JournalIEEE Transactions on Energy Conversion
Volume25
Issue number2
Early online date2 Feb 2010
DOIs
Publication statusPublished - Jun 2010

Bibliographical note

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Keywords

  • converter protection scheme
  • doubly-fed induction generator (DFIG)
  • fault ride-through (FRT)
  • series dynamic resistor (SDR)
  • wind power generation

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