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Mitigation of the effects of grid voltage disturbances on DFIG wind farm power conversion efficiency based on on-site measurements analysis.

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Title: Mitigation of the effects of grid voltage disturbances on DFIG wind farm power conversion efficiency based on on-site measurements analysis.
Authors: Mehdi, Taghi1 (AUTHOR), Labar, Hocine2 (AUTHOR) hocine.labar@univ-annaba.dz, Kelaiaia, Mounia Samira2 (AUTHOR), Yarba, Ahmed1 (AUTHOR)
Source: International Journal of Emerging Electric Power Systems. Jun2026, Vol. 27 Issue 3, p447-458. 12p.
Subjects: Reactive power control, Wind turbine efficiency, Wind turbines, Power quality disturbances
Geographic Terms: Mauritania
Abstract: The control and power production of a Doubly Fed Induction Generator (DFIG) wind turbine are highly dependent on grid parameters. To reach the maximum power point (MPPT) and hence to maximize the power output from the wind energy system, the MPPT algorithms used are generally dependent on the grid voltage measurements. Therefore, any deviation of the grid voltage from its rated value can reduce both the power production efficiency and the reactive power performance of the wind turbine. The main sources of these deviations are voltage unbalance and grid disturbances. Deep investigations of a year of data from the Nouadhibou wind farm located in Mauritania, have shown that DFIG wind turbines are very sensitive to the operating conditions defined by the grid code. This grid code specifies two operation modes: unlimited temporal operation and limited operation. In many situations, the wind farm exceeds the allowed time for limited operation, leading to grid disconnection. This paper proposes a new reactive power control strategy to reduce DFIG's sensitivity to grid voltage variations. The proposed control compares the measured Phase-Locked Loop (PLL) signal with the reference voltage. Based on this comparison, the controller chooses the suitable combination of capacitors to generate or absorb the required reactive power for voltage regulation. This method allows the wind turbine to remain in unlimited operation mode, preventing unwanted disconnections. Furthermore, it reduces reactive power exchange between the DFIG and the grid while keeping the Point of Common Coupling (PCC) voltage within optimal limits. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Emerging Electric Power Systems is the property of De Gruyter and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 194732116
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Label: Title
  Group: Ti
  Data: Mitigation of the effects of grid voltage disturbances on DFIG wind farm power conversion efficiency based on on-site measurements analysis.
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  Data: <searchLink fieldCode="AR" term="%22Mehdi%2C+Taghi%22">Mehdi, Taghi</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Labar%2C+Hocine%22">Labar, Hocine</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> hocine.labar@univ-annaba.dz</i><br /><searchLink fieldCode="AR" term="%22Kelaiaia%2C+Mounia+Samira%22">Kelaiaia, Mounia Samira</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yarba%2C+Ahmed%22">Yarba, Ahmed</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Emerging+Electric+Power+Systems%22">International Journal of Emerging Electric Power Systems</searchLink>. Jun2026, Vol. 27 Issue 3, p447-458. 12p.
– Name: Subject
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  Data: <searchLink fieldCode="DE" term="%22Reactive+power+control%22">Reactive power control</searchLink><br /><searchLink fieldCode="DE" term="%22Wind+turbine+efficiency%22">Wind turbine efficiency</searchLink><br /><searchLink fieldCode="DE" term="%22Wind+turbines%22">Wind turbines</searchLink><br /><searchLink fieldCode="DE" term="%22Power+quality+disturbances%22">Power quality disturbances</searchLink>
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  Label: Geographic Terms
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  Data: <searchLink fieldCode="DE" term="%22Mauritania%22">Mauritania</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The control and power production of a Doubly Fed Induction Generator (DFIG) wind turbine are highly dependent on grid parameters. To reach the maximum power point (MPPT) and hence to maximize the power output from the wind energy system, the MPPT algorithms used are generally dependent on the grid voltage measurements. Therefore, any deviation of the grid voltage from its rated value can reduce both the power production efficiency and the reactive power performance of the wind turbine. The main sources of these deviations are voltage unbalance and grid disturbances. Deep investigations of a year of data from the Nouadhibou wind farm located in Mauritania, have shown that DFIG wind turbines are very sensitive to the operating conditions defined by the grid code. This grid code specifies two operation modes: unlimited temporal operation and limited operation. In many situations, the wind farm exceeds the allowed time for limited operation, leading to grid disconnection. This paper proposes a new reactive power control strategy to reduce DFIG's sensitivity to grid voltage variations. The proposed control compares the measured Phase-Locked Loop (PLL) signal with the reference voltage. Based on this comparison, the controller chooses the suitable combination of capacitors to generate or absorb the required reactive power for voltage regulation. This method allows the wind turbine to remain in unlimited operation mode, preventing unwanted disconnections. Furthermore, it reduces reactive power exchange between the DFIG and the grid while keeping the Point of Common Coupling (PCC) voltage within optimal limits. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Emerging Electric Power Systems is the property of De Gruyter and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1515/ijeeps-2025-0160
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 447
    Subjects:
      – SubjectFull: Reactive power control
        Type: general
      – SubjectFull: Wind turbine efficiency
        Type: general
      – SubjectFull: Wind turbines
        Type: general
      – SubjectFull: Power quality disturbances
        Type: general
      – SubjectFull: Mauritania
        Type: general
    Titles:
      – TitleFull: Mitigation of the effects of grid voltage disturbances on DFIG wind farm power conversion efficiency based on on-site measurements analysis.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Mehdi, Taghi
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            NameFull: Labar, Hocine
      – PersonEntity:
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            NameFull: Kelaiaia, Mounia Samira
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            NameFull: Yarba, Ahmed
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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              Value: 27
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            – TitleFull: International Journal of Emerging Electric Power Systems
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