Analysis of VSC-based HVDC system under DC faults

John Rafferty, D John Morrow, Lie Xu

Research output: Contribution to journalConference Contributionpeer-review

19 Citations (Scopus)


This paper analyzes the behavior of a Voltage Source Converter Based HVDC system under DC cable fault conditions. The behavior of the HVDC system during a permanent line-to-earth fault is analyzed, outlining the systems configuration and behavior at each stage of the fault timeline. Operation of the proposed system under a single earthing configurations, i.e. Converter (solid) earthed/AC transformer unearthed, was analyzed and simulated, with particular attention paid to the converters operation. It was observed that the development of potential earth loops within the system as a result of DC line-to-earth faults leads to substantial overcurrent and results in system configuration oscillation.
Original languageEnglish
Pages (from-to)459 - 464
Number of pages6
Journal39th Annual Conference of the IEEE Industrial Electronics Society IECON 2013
Publication statusPublished - Nov 2013
EventIEEE IECON 2013 - Vienna, Austria
Duration: 28 Oct 2013 → …


  • HVDC power convertors
  • HVDC power transmission
  • earthing
  • power cables
  • power transmission faults
  • single earthing configurations


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