Robust Current Control of Doubly Fed Wind Turbine Generator under Unbalanced Grid Voltage Conditions

Yun Wang, Wenming Gong, Qiuwei Wu

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This paper presents the design of a H ∞ current controller for doubly fed induction generators (DFIGs) in order to maintain stable operation under unbalanced voltage conditions. The H ∞ current controller has a multi-input and multi-output (MIMO) structure and is designed using the loop shaping method. Case studies have been carried out in order to verify the efficacy of the proposed H ∞ current controller for DFIGs. The case study results show that the proposed H ∞ current controller can realize different control objectives, i.e. stable stator current, stable stator active power and stable stator reactive power. It is also shown that the H ∞ current controller is less sensitive to the parameter perturbation.
Original languageEnglish
Title of host publicationProceedings of IEEE PES APPEEC 2013
Number of pages4
Publication date2014
Article number0146
Publication statusPublished - 2014
EventIEEE PES APPEEC 2013: The 5th IEEE PES Asia-Pacific Power and - Kowloon Shangri La Hotel, Kowloon, Hong Kong SAR, Hong Kong
Duration: 8 Dec 201311 Dec 2013


ConferenceIEEE PES APPEEC 2013
LocationKowloon Shangri La Hotel
Country/TerritoryHong Kong
CityKowloon, Hong Kong SAR


  • DFIG
  • H ∞ current controller
  • MIMO
  • Unbalanced voltage conditions


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