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Multi-tasking dc–dc and dc–ac converters for dc voltage tapping and power control in highly meshed multi-terminal HVDC networks.

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Title: Multi-tasking dc–dc and dc–ac converters for dc voltage tapping and power control in highly meshed multi-terminal HVDC networks.
Authors: Adam, Grain Philip1 grain.adam@eee.strath.ac.uk, Abdelsalam, Ibrahim2, Lie Xu1, Fletcher, John3, Burt, Graeme1, Williams, Barry1
Source: IET Power Electronics (Wiley-Blackwell). 2017, Vol. 10 Issue 15, p2217-2228. 12p. 2 Diagrams, 1 Chart, 9 Graphs.
Subjects: High-voltage direct current transmission, Voltage control, Computer multitasking, Electric current converters, Electric power transmission
Abstract: This study extends a recently proposed dc auto-transformer to a true multi-port converter that can function simultaneously as dc auto-transformer and a dc/ac converter for dc voltage matching and tapping, and power control in highly meshed multi-terminal dc grids. The presented multi-port converter can generate multiple adjustable dc voltages from a fixed or variable input dc voltage, or from an active ac grid. Theoretical discussions and simulations indicate that when the proposed multi-port converter is used as a hybrid dc and ac hub to manage congestions and resolve loop flow issues in a highly meshed multi-terminal dc network, large dc power can be fed to the lower dc terminal, without exposing the switching devices of the lower subconverter to excessive current stress. Its increased control flexibility and response to dc faults at high and low dc terminals are validated using simulations and experiments. [ABSTRACT FROM AUTHOR]
Copyright of IET Power Electronics (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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DbLabel: Engineering Source
An: 127182921
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
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  Data: Multi-tasking dc–dc and dc–ac converters for dc voltage tapping and power control in highly meshed multi-terminal HVDC networks.
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  Data: <searchLink fieldCode="AR" term="%22Adam%2C+Grain+Philip%22">Adam, Grain Philip</searchLink><relatesTo>1</relatesTo><i> grain.adam@eee.strath.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Abdelsalam%2C+Ibrahim%22">Abdelsalam, Ibrahim</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Lie+Xu%22">Lie Xu</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Fletcher%2C+John%22">Fletcher, John</searchLink><relatesTo>3</relatesTo><br /><searchLink fieldCode="AR" term="%22Burt%2C+Graeme%22">Burt, Graeme</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Williams%2C+Barry%22">Williams, Barry</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22IET+Power+Electronics+%28Wiley-Blackwell%29%22">IET Power Electronics (Wiley-Blackwell)</searchLink>. 2017, Vol. 10 Issue 15, p2217-2228. 12p. 2 Diagrams, 1 Chart, 9 Graphs.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22High-voltage+direct+current+transmission%22">High-voltage direct current transmission</searchLink><br /><searchLink fieldCode="DE" term="%22Voltage+control%22">Voltage control</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+multitasking%22">Computer multitasking</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+current+converters%22">Electric current converters</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+power+transmission%22">Electric power transmission</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This study extends a recently proposed dc auto-transformer to a true multi-port converter that can function simultaneously as dc auto-transformer and a dc/ac converter for dc voltage matching and tapping, and power control in highly meshed multi-terminal dc grids. The presented multi-port converter can generate multiple adjustable dc voltages from a fixed or variable input dc voltage, or from an active ac grid. Theoretical discussions and simulations indicate that when the proposed multi-port converter is used as a hybrid dc and ac hub to manage congestions and resolve loop flow issues in a highly meshed multi-terminal dc network, large dc power can be fed to the lower dc terminal, without exposing the switching devices of the lower subconverter to excessive current stress. Its increased control flexibility and response to dc faults at high and low dc terminals are validated using simulations and experiments. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of IET Power Electronics (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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      – Type: doi
        Value: 10.1049/iet-pel.2016.1035
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 2217
    Subjects:
      – SubjectFull: High-voltage direct current transmission
        Type: general
      – SubjectFull: Voltage control
        Type: general
      – SubjectFull: Computer multitasking
        Type: general
      – SubjectFull: Electric current converters
        Type: general
      – SubjectFull: Electric power transmission
        Type: general
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      – TitleFull: Multi-tasking dc–dc and dc–ac converters for dc voltage tapping and power control in highly meshed multi-terminal HVDC networks.
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            NameFull: Adam, Grain Philip
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            NameFull: Abdelsalam, Ibrahim
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            NameFull: Lie Xu
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            NameFull: Fletcher, John
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            NameFull: Burt, Graeme
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            NameFull: Williams, Barry
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            – D: 01
              M: 11
              Text: 2017
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              Y: 2017
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