A Comprehensive LVRT Control Strategy for DFIG Wind Turbines with Enhanced Reactive Power Support

Dongliang Xie, Zhao Xu, Lihui Yang, Jacob Ostergaard, Yusheng Xue, Kit Po Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

170 Citations (Scopus)

Abstract

The paper presents a new control strategy to enhance the ability of reactive power support of a doubly fed induction generator (DFIG) based wind turbine during serious voltage dips. The proposed strategy is an advanced low voltage ride through (LVRT) control scheme, with which a part of the captured wind energy during grid faults is stored temporarily in the rotor's inertia energy and the remaining energy is available to the grid while the DC-link voltage and rotor current are kept below the dangerous levels. After grid fault clearance, the control strategy ensures smooth release of the rotor's excessive inertia energy into the grid. Based on these designs, the DFIG's reactive power capacity on the stator and the grid side converter is handled carefully to satisfy the new grid code requirements strictly. Simulation studies are presented and discussed.
Original languageEnglish
Article number6449334
Pages (from-to)3302-3310
Number of pages9
JournalIEEE Transactions on Power Systems
Volume28
Issue number3
DOIs
Publication statusPublished - 8 Feb 2013

Keywords

  • Doubly fed induction generator (DFIG)
  • low voltage ride through (LVRT)
  • power system fault
  • reactive power

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

Cite this