• Smart fault handling in medium voltage distribution grids 

      Tutvedt, Kjell Anders; Seguin, R.; Kjølle, Gerd Hovin; Simonsen, Stig; Hermansen, Tonje Skoglund; Myhr, Ingrid (CIRED Conference Proceedings;2017, Chapter; Peer reviewed, 2017)
      This paper presents first results from a pilot project on using fault indicators and self-healing in medium voltage distribution grids. Directional earth-fault indicators were chosen and deployed in real environments to ...
    • The impact of protection systems on power system reliability 

      Vadlamudi, Vijay Venu; Gjerde, Oddbjørn Idar; Kjølle, Gerd Hovin (SINTEF Energi. Rapport;TR A7439, Research report, 2014)
      This report is a collection of memos written to describe the methodology for quantifying the impact of protection systems on power system reliability. Including the effect of protection system response scenarios on a ...
    • Transmission line unavailability due to correlated threat exposure 

      Kiel, Erlend Sandø; Kjølle, Gerd Hovin (Chapter; Peer reviewed, 2019)
      Extreme weather is known to cause failure bunching in the electrical transmission system. However, protection systems can also contribute to the worsening of the system state through spontaneous, missing or unwanted operation ...
    • Vulnerability analysis of HVDC contingencies in the Nordic power system 

      Sperstad, Iver Bakken; Kjølle, Gerd Hovin; Gjerde, Oddbjørn; Vrana, Til Kristian; Jakobsen, Sigurd Hofsmo; Turunen, J.; Haarla, L (Chapter; Peer reviewed, 2018)
      In the increasingly interconnected and integrated European power system, transmission system operators need to consider new kinds of risk associated with the interconnection to neighbouring systems. For the Nordic power ...
    • Vulnerability and security in a changing power system 

      Kjølle, Gerd Hovin; Gjerde, Oddbjørn; Hofmann, Matthias (SINTEF Energi. Rapport;, Research report, 2013)
      This report presents the main results from the knowledge-building project Vulnerability and security in a changing power system. The main stakeholders of this project are the energy authorities, system operators and network ...
    • Vulnerability indicators for electric power grids 

      Hofmann, Matthias; Kjølle, Gerd Hovin; Gjerde, Oddbjørn (SINTEF Energi. Rapport;TR A7276, Research report, 2013)
      This report presents a framework and methodology to develop indicators to monitor the vulnerability of the electric power grid. It establishes a scientific foundation by defining vulnerability and the different dimensions ...
    • Vulnerability of the Nordic Power System 

      Doorman, Gerard L.; Kjølle, Gerd Hovin; Uhlen, Kjetil Obstfelder; Huse, Einar Ståle; Flatabø, Nils (Teknisk rapport / SINTEF energiforskning;, Research report, 2004)
    • Vulnerability of the Nordic Power System - Executive Summary 

      Doorman, Gerard L.; Kjølle, Gerd Hovin; Uhlen, Kjetil Obstfelder; Huse, Einar Ståle; Flatabø, Nils (Teknisk rapport / SINTEF energiforskning;, Research report, 2004)