Advanced Automated Emergency Control Strategy for Embedded VSC-HVDC Links

Stefan Christian Polster*, Herwig Renner, Katrin Friedl, Olof Samuelsson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


This paper proposes an advanced emergency control strategy for embedded VSC-HVDC links after AC disturbances, such as line tripping and generation loss. The control goals are to minimize the impact of the disturbance on the AC-network, which includes improving the long-term voltage stability with utilizing possible unloading capacity of parallel AC elements. The proposed algorithm is evaluated against other control strategies for embedded VSC-HVDC links by applying it to a simple demonstration network. The test system includes all necessary VSC converter dynamics, the VSC-HVDC link current and voltage limits and simple load recovery characteristics for an evaluation of the long term voltage stability. The simulation results are explained and the advantages of the proposed emergency control strategy are discussed.
Original languageEnglish
Pages (from-to)394-399
Number of pages6
JournalElektrotechnik und Informationstechnik
Issue number8
Early online date15 Oct 2020
Publication statusPublished - Dec 2020


  • VSC-HVDC links
  • long term voltage stability
  • cascading line tripping
  • emergency control scheme

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fields of Expertise

  • Sustainable Systems


Dive into the research topics of 'Advanced Automated Emergency Control Strategy for Embedded VSC-HVDC Links'. Together they form a unique fingerprint.
  • NetzReg - Optimum Grid Control

    Polster, S. C.


    Project: Research project

  • DOC-Fellowship

    Polster, S. C. (Recipient), 9 Jun 2017

    Prize: Fellowship awarded competitively

Cite this