Assessment of fault-ride through capability of grid-connected brushless DFIG wind turbines

I. Azmy, A. Abdel-Khalik, A. M. Massoud, Shehab Ahmed

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

DFIGs are reported to suffer serious reliability problems due to the presence of slip-rings, brushes and gearbox. These disadvantages encouraged several research groups to investigate the viability of employing single-frame or doubleframe Brushless Cascade DFIGs (BCDFIGs) in grid connected multi-megawatt wind turbines especially off-shore and in solar chimney power plants. In this regard, this paper tackles three main issues. Firstly, the expected reduction in gear ratio and maintenance frequency and cost by replacing DFIGs with BCDFIGs of the same power. Secondly, a detailed comparison is held between DFIG-WTs and BCDFIG-WT regarding their behaviour under unbalanced grid voltage. Finally, the paper studies to what extent a multimegawatt BCDFIG-WT is grid code compliant by its nature in terms of fault ride-through capability. This is illustrated by comparing and quantifying the response of a DFIG-WT and a BCDFIG-WT to a severe three phase voltage dip. Results indicate a promising behaviour of BCDFIGs during disturbances.

Original languageEnglish
Title of host publicationIET Conference on Renewable Power Generation, RPG 2011
PublisherInstitution of Engineering and Technology
Number of pages1
Edition579 CP
ISBN (Print)9781849195362
DOIs
Publication statusPublished - 1 Jan 2011
EventIET Conference on Renewable Power Generation, RPG 2011 - Edinburgh, United Kingdom
Duration: 9 May 20118 Sep 2011

Publication series

NameIET Conference Publications
Number579 CP
Volume2011

Other

OtherIET Conference on Renewable Power Generation, RPG 2011
CountryUnited Kingdom
CityEdinburgh
Period9/5/118/9/11

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Keywords

  • Brushless doubly-fed induction generator (BDFIG)
  • Fault ride through
  • Grid-fault response
  • Variable speed wind turbines

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Azmy, I., Abdel-Khalik, A., Massoud, A. M., & Ahmed, S. (2011). Assessment of fault-ride through capability of grid-connected brushless DFIG wind turbines. In IET Conference on Renewable Power Generation, RPG 2011 (579 CP ed.). (IET Conference Publications; Vol. 2011, No. 579 CP). Institution of Engineering and Technology. https://doi.org/10.1049/cp.2011.0151