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Research on Application Performance of Controllable Line-Commutated Converters with Supporting Reactive Power Capability Dynamically.

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Title: Research on Application Performance of Controllable Line-Commutated Converters with Supporting Reactive Power Capability Dynamically.
Authors: Deng, Tingting1 (AUTHOR), Du, Zhaoxin2 (AUTHOR), Zhao, Wenbin1,3 (AUTHOR) wenbinmax@163.com, Zhang, Jing1,3 (AUTHOR), Zhang, Guangqing1,2 (AUTHOR)
Source: Energies (19961073). May2026, Vol. 19 Issue 10, p2428. 19p.
Subject Terms: *Reactive power control, *High-voltage direct current transmission, *Electric power system faults, *Power system simulation, *Thyristor control, *Electric power system stability, *Wind power
Abstract: Conventional high-voltage direct current (HVDC) systems based on line-commutated converters (LCC) are prone to commutation failures and consume excessive reactive power during AC grid faults. The controllable line-commutated converter (CLCC) was developed to solve these problems. To further investigate CLCC's practical application in the AC system, this paper proposes a fixed AC voltage control strategy for the inverter-side CLCC. A hybrid LCC-CLCC HVDC transmission system model is built in PSCAD. Simulations are performed under three-phase short-circuit faults and wind power fluctuation scenarios. The results show that, unlike traditional LCC, the CLCC under the proposed control can actively increase its firing angle over 160 degrees during disturbances. This action injects dynamic reactive power into the grid and significantly reduces the AC bus voltage drop. Especially in weak grid conditions, CLCC can greatly reduce reactive power consumption through wide-range active adjustment of the firing angle, thereby improving voltage stability. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 194141543
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Research on Application Performance of Controllable Line-Commutated Converters with Supporting Reactive Power Capability Dynamically.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Deng%2C+Tingting%22">Deng, Tingting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Du%2C+Zhaoxin%22">Du, Zhaoxin</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhao%2C+Wenbin%22">Zhao, Wenbin</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> wenbinmax@163.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Jing%22">Zhang, Jing</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Guangqing%22">Zhang, Guangqing</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Energies+%2819961073%29%22">Energies (19961073)</searchLink>. May2026, Vol. 19 Issue 10, p2428. 19p.
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: *<searchLink fieldCode="DE" term="%22Reactive+power+control%22">Reactive power control</searchLink><br />*<searchLink fieldCode="DE" term="%22High-voltage+direct+current+transmission%22">High-voltage direct current transmission</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+power+system+faults%22">Electric power system faults</searchLink><br />*<searchLink fieldCode="DE" term="%22Power+system+simulation%22">Power system simulation</searchLink><br />*<searchLink fieldCode="DE" term="%22Thyristor+control%22">Thyristor control</searchLink><br />*<searchLink fieldCode="DE" term="%22Electric+power+system+stability%22">Electric power system stability</searchLink><br />*<searchLink fieldCode="DE" term="%22Wind+power%22">Wind power</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Conventional high-voltage direct current (HVDC) systems based on line-commutated converters (LCC) are prone to commutation failures and consume excessive reactive power during AC grid faults. The controllable line-commutated converter (CLCC) was developed to solve these problems. To further investigate CLCC's practical application in the AC system, this paper proposes a fixed AC voltage control strategy for the inverter-side CLCC. A hybrid LCC-CLCC HVDC transmission system model is built in PSCAD. Simulations are performed under three-phase short-circuit faults and wind power fluctuation scenarios. The results show that, unlike traditional LCC, the CLCC under the proposed control can actively increase its firing angle over 160 degrees during disturbances. This action injects dynamic reactive power into the grid and significantly reduces the AC bus voltage drop. Especially in weak grid conditions, CLCC can greatly reduce reactive power consumption through wide-range active adjustment of the firing angle, thereby improving voltage stability. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=194141543
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.3390/en19102428
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 19
        StartPage: 2428
    Subjects:
      – SubjectFull: Reactive power control
        Type: general
      – SubjectFull: High-voltage direct current transmission
        Type: general
      – SubjectFull: Electric power system faults
        Type: general
      – SubjectFull: Power system simulation
        Type: general
      – SubjectFull: Thyristor control
        Type: general
      – SubjectFull: Electric power system stability
        Type: general
      – SubjectFull: Wind power
        Type: general
    Titles:
      – TitleFull: Research on Application Performance of Controllable Line-Commutated Converters with Supporting Reactive Power Capability Dynamically.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Deng, Tingting
      – PersonEntity:
          Name:
            NameFull: Du, Zhaoxin
      – PersonEntity:
          Name:
            NameFull: Zhao, Wenbin
      – PersonEntity:
          Name:
            NameFull: Zhang, Jing
      – PersonEntity:
          Name:
            NameFull: Zhang, Guangqing
    IsPartOfRelationships:
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          Dates:
            – D: 15
              M: 05
              Text: May2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 19961073
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            – Type: volume
              Value: 19
            – Type: issue
              Value: 10
          Titles:
            – TitleFull: Energies (19961073)
              Type: main
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