Operational control and protection implications of fault current limitation in distribution networks

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Abstract

Rising short-circuit fault current levels is one of the
problems associated with the increased presence of distributed
generation (DG) in electrical networks. A fault level management
system involving superconducting fault current limiters (SCFCLs)
is a potential solution to this issue. The typical applications
of SCFCLs and their advantages over traditional fault current
limitation measures are discussed. However, several technical issues
remain, relating to: SCFCL post-fault recovery time; network
control and protection; and maloperation of the SCFCL due to
non-fault transient currents, such as transformer inrush. Initial
solutions to these problems, involving a distributed software-based
fault level management system, are presented.
Original languageEnglish
Title of host publication2009 Proceedings of the 44th International Universities Power Engineering Conference (UPEC)
Place of PublicationNew York
PublisherIEEE
Number of pages5
ISBN (Print)9781424468232
Publication statusPublished - 2009

Keywords

  • operational control
  • protection implications
  • fault current limitation
  • distribution networks

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