Modeling, Control and Experimental Verification of a DFIG with a Series-Grid-Side Converter with Voltage Sag, Unbalance and Distortion Compensation Capabilities

Gustavo Figueiredo Gontijo, Thiago Cardoso Tricarico, Leonardo Francisco da Silva, Daniel Krejci, Bruno Wanderley França, Mauricio Aredes, Josep M. Guerrero

Research output: Contribution to journalJournal articleResearchpeer-review

9 Citations (Scopus)

Abstract

This article presents the modeling and experimental validation of a recently presented DFIG wind power system driven by a two-level three-phase converter in which the grid-side converter is connected in series with the grid. The series-grid-side converter is able to compensate for stator-voltage sags, unbalance and harmonic distortion resulting in a high-power-quality system with considerable low-voltage-ride-through capability. The proposed control technique makes it feasible to obtain such high-power-quality system using a conventional two-level three-phase converter composed of 12 IGBTs, with no need of extra switches, while maintaining the usual high efficiency and low cost inherent to the DFIG configuration. Moreover, using the proposed linear model, one can design the dc-link-voltage controller's parameters according to the desired dynamic behavior. Experimental results are presented using a 15 kW test bench, which validate the proposed control technique.
Original languageEnglish
Article number8867946
JournalIEEE Transactions on Industry Applications
Volume56
Issue number1
Pages (from-to)584-600
Number of pages17
ISSN0093-9994
DOIs
Publication statusPublished - Jan 2020

Keywords

  • DFIG
  • Harmonic voltage compensation
  • Low-voltage ride through
  • Power quality
  • Series-grid-side converter (SGSC)
  • Voltage unbalance compensation
  • series-grid-side converter (SGSC)
  • voltage unbalance compensation
  • power quality
  • harmonic voltage compensation
  • low-voltage ride through

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