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A pilot protection scheme based on high‐frequency transient current waveform similarity for AC lines connected to HVDC inverter station.

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Title: A pilot protection scheme based on high‐frequency transient current waveform similarity for AC lines connected to HVDC inverter station.
Authors: Duan, Jiandong1 (AUTHOR), Song, Wenqiang1 (AUTHOR) 2211921142@stu.xaut.edu.cn, Du, Xiaotong2 (AUTHOR), Zhao, Yuhang1 (AUTHOR)
Source: IET Generation, Transmission & Distribution (Wiley-Blackwell). Apr2024, Vol. 18 Issue 7, p1404-1420. 17p.
Subjects: Electric transients, Computer-aided design, Electric lines, Theory of wave motion, High voltages, Computer systems
Abstract: Affected by inverter station commutation failure and fast control, line fault characteristics are obviously different from traditional AC transmission line fault characteristics. The existing protection methods for AC line connected to line commutated converter based high voltage DC (LCC‐HVDC) inverter station (ACLs) have the problems of complex setting, weak anti‐noise and high demand for data synchronization. This paper proposes a pilot protection scheme based on high‐frequency transient current waveform similarity. Firstly, with analyzing the fault traveling wave propagation process, the obvious differences are found in the transient current waveforms at both ends of the line when internal and external faults occur. Then the similarity of transient current waveforms is measured with the improved longest common similar subsequence (LCSS) method. And the weak high‐frequency current is extracted with the improved synchronous squeezed S‐transform (SST) method. Finally, a large number of power systems computer aided design (PSCAD) simulation results show that the proposed protection method does not require strict data synchronization, has strong anti‐noise performance, and is tolerant to the influence of abnormal point fluctuations. [ABSTRACT FROM AUTHOR]
Copyright of IET Generation, Transmission & Distribution (Wiley-Blackwell) is the property of Wiley-Blackwell 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
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Header DbId: egs
DbLabel: Engineering Source
An: 176388375
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: A pilot protection scheme based on high‐frequency transient current waveform similarity for AC lines connected to HVDC inverter station.
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  Data: <searchLink fieldCode="DE" term="%22Electric+transients%22">Electric transients</searchLink><br /><searchLink fieldCode="DE" term="%22Computer-aided+design%22">Computer-aided design</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+lines%22">Electric lines</searchLink><br /><searchLink fieldCode="DE" term="%22Theory+of+wave+motion%22">Theory of wave motion</searchLink><br /><searchLink fieldCode="DE" term="%22High+voltages%22">High voltages</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+systems%22">Computer systems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Affected by inverter station commutation failure and fast control, line fault characteristics are obviously different from traditional AC transmission line fault characteristics. The existing protection methods for AC line connected to line commutated converter based high voltage DC (LCC‐HVDC) inverter station (ACLs) have the problems of complex setting, weak anti‐noise and high demand for data synchronization. This paper proposes a pilot protection scheme based on high‐frequency transient current waveform similarity. Firstly, with analyzing the fault traveling wave propagation process, the obvious differences are found in the transient current waveforms at both ends of the line when internal and external faults occur. Then the similarity of transient current waveforms is measured with the improved longest common similar subsequence (LCSS) method. And the weak high‐frequency current is extracted with the improved synchronous squeezed S‐transform (SST) method. Finally, a large number of power systems computer aided design (PSCAD) simulation results show that the proposed protection method does not require strict data synchronization, has strong anti‐noise performance, and is tolerant to the influence of abnormal point fluctuations. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of IET Generation, Transmission & Distribution (Wiley-Blackwell) is the property of Wiley-Blackwell 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:
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    Identifiers:
      – Type: doi
        Value: 10.1049/gtd2.13134
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 17
        StartPage: 1404
    Subjects:
      – SubjectFull: Electric transients
        Type: general
      – SubjectFull: Computer-aided design
        Type: general
      – SubjectFull: Electric lines
        Type: general
      – SubjectFull: Theory of wave motion
        Type: general
      – SubjectFull: High voltages
        Type: general
      – SubjectFull: Computer systems
        Type: general
    Titles:
      – TitleFull: A pilot protection scheme based on high‐frequency transient current waveform similarity for AC lines connected to HVDC inverter station.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Duan, Jiandong
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            NameFull: Song, Wenqiang
      – PersonEntity:
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            NameFull: Du, Xiaotong
      – PersonEntity:
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            NameFull: Zhao, Yuhang
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          Dates:
            – D: 01
              M: 04
              Text: Apr2024
              Type: published
              Y: 2024
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              Value: 18
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              Value: 7
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            – TitleFull: IET Generation, Transmission & Distribution (Wiley-Blackwell)
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