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A Novel DC Capacitor Inertia Control With Channel Decoupling for DFIG Based on Robustness to Frequency Fluctuation.

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Title: A Novel DC Capacitor Inertia Control With Channel Decoupling for DFIG Based on Robustness to Frequency Fluctuation.
Authors: Xian, Long1,2 (AUTHOR), Wu, Lizhen1,2 (AUTHOR) 806663958@qq.com, Chen, Wei1,2 (AUTHOR), Pei, Tingting1,3 (AUTHOR), Xie, Xingfeng1,2 (AUTHOR)
Source: International Journal of Circuit Theory & Applications. Jun2026, Vol. 54 Issue 6, p3417-3428. 12p.
Subject Terms: *Electric generators, *Electric current converters, *Feedback control system stability, *Model validation, *Linear control systems
Abstract: The existing DC capacitor inertia control (DCIC) used in the grid side converter (GSC) of doubly fed induction generator (DFIG) faces many issues such as a significant impact on DC bus voltage (DCBV) from grid frequency fluctuations, coupling of control parameter channels, and poor control stability. To tackle the above issues, this paper designs a novel DCIC method. This DCIC method removes the damping compensation branch in the phase control channel of the converter voltage modulation wave and adds a frequency‐resistant decoupling element (FRDE) to this branch. This effectively reduces the impact of grid frequency fluctuations on maintaining a constant DCBV in the GSC and enables the GSC under the designed control method to equivalently emulate the operational characteristics of a synchronous generator with damping. A thorough analysis of the disturbance rejection performance of the novel DCIC method in various aspects is conducted by establishing and utilizing a small‐signal model of the control system, combined with Bode plots. Finally, a comprehensive simulation model was established on the MATLAB/Simulink platform. Comparative studies were conducted between the conventional DCIC method and the designed method, validating its correctness and performance accuracy. [ABSTRACT FROM AUTHOR]
Database: Academic Search Index
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  – Url: https://resolver.ebsco.com/c/fiv2js/result?sid=EBSCO:asx&genre=article&issn=00989886&ISBN=&volume=54&issue=6&date=20260601&spage=3417&pages=3417-3428&title=International Journal of Circuit Theory & Applications&atitle=A%20Novel%20DC%20Capacitor%20Inertia%20Control%20With%20Channel%20Decoupling%20for%20DFIG%20Based%20on%20Robustness%20to%20Frequency%20Fluctuation.&aulast=Xian%2C%20Long&id=DOI:10.1002/cta.70184
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Items – Name: Title
  Label: Title
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  Data: A Novel DC Capacitor Inertia Control With Channel Decoupling for DFIG Based on Robustness to Frequency Fluctuation.
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  Data: <searchLink fieldCode="AR" term="%22Xian%2C+Long%22">Xian, Long</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Lizhen%22">Wu, Lizhen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> 806663958@qq.com</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Wei%22">Chen, Wei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pei%2C+Tingting%22">Pei, Tingting</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xie%2C+Xingfeng%22">Xie, Xingfeng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Circuit+Theory+%26+Applications%22">International Journal of Circuit Theory & Applications</searchLink>. Jun2026, Vol. 54 Issue 6, p3417-3428. 12p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Electric+generators%22">Electric generators</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+current+converters%22">Electric current converters</searchLink><br />*<searchLink fieldCode="DE" term="%22Feedback+control+system+stability%22">Feedback control system stability</searchLink><br />*<searchLink fieldCode="DE" term="%22Model+validation%22">Model validation</searchLink><br />*<searchLink fieldCode="DE" term="%22Linear+control+systems%22">Linear control systems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The existing DC capacitor inertia control (DCIC) used in the grid side converter (GSC) of doubly fed induction generator (DFIG) faces many issues such as a significant impact on DC bus voltage (DCBV) from grid frequency fluctuations, coupling of control parameter channels, and poor control stability. To tackle the above issues, this paper designs a novel DCIC method. This DCIC method removes the damping compensation branch in the phase control channel of the converter voltage modulation wave and adds a frequency‐resistant decoupling element (FRDE) to this branch. This effectively reduces the impact of grid frequency fluctuations on maintaining a constant DCBV in the GSC and enables the GSC under the designed control method to equivalently emulate the operational characteristics of a synchronous generator with damping. A thorough analysis of the disturbance rejection performance of the novel DCIC method in various aspects is conducted by establishing and utilizing a small‐signal model of the control system, combined with Bode plots. Finally, a comprehensive simulation model was established on the MATLAB/Simulink platform. Comparative studies were conducted between the conventional DCIC method and the designed method, validating its correctness and performance accuracy. [ABSTRACT FROM AUTHOR]
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1002/cta.70184
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 12
        StartPage: 3417
    Subjects:
      – SubjectFull: Electric generators
        Type: general
      – SubjectFull: Electric current converters
        Type: general
      – SubjectFull: Feedback control system stability
        Type: general
      – SubjectFull: Model validation
        Type: general
      – SubjectFull: Linear control systems
        Type: general
    Titles:
      – TitleFull: A Novel DC Capacitor Inertia Control With Channel Decoupling for DFIG Based on Robustness to Frequency Fluctuation.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Xian, Long
      – PersonEntity:
          Name:
            NameFull: Wu, Lizhen
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            NameFull: Chen, Wei
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            NameFull: Pei, Tingting
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          Name:
            NameFull: Xie, Xingfeng
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          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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              Value: 00989886
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              Value: 54
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              Value: 6
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            – TitleFull: International Journal of Circuit Theory & Applications
              Type: main
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