• Analysing the stability of an islanded hydro-electric power system 

      Winkler, Dietmar (Journal article; Peer reviewed, 2018)
      Power system simulation is a large arena especially in connection with the large European power system. The challenges of large interconnected electrical power systems call for a sophisticated system modelling solution ...
    • Electrical Power System Modelling in Modelica – Comparing Open-source Library Options 

      Winkler, Dietmar (Journal article; Peer reviewed, 2017)
      The past modelling of electrical powers systems used to be a the domain of a few major power system modelling tools. Commercial tools1 like DIgSILENT PowerFactory [3], POWERSYS EMTP-RV [17], PSCADTM [14], Siemens PSS/E R ...
    • Evaluation of battery storage in combination with hydro-power systems 

      Hellborg, Lars Jonatan (Master thesis, 2021)
      As the power grid moves away from larger rotating masses, thereby decreasing the inertia and making the grid more sensitive to production changes, it becomes more and more important that new and improved power reserves ...
    • modelica.university: A Platform for Interactive Modelica Content 

      Winkler, Dietmar; Tiller, Michael (Journal article; Peer reviewed, 2017)
      The World Wide Web was conceived of as a medium for the expression and exploration of scientific and engineering ideas. However, much of the innovation in web technologies is now focused on consumer facing applications. Although ...
    • Modeling the Excitation Control System of a Hydropower Controller in Modelica 

      Manoranjan, Luxshan (Master thesis, 2021)
      Hydropower technologies are crucial to provide flexibility, reliability, and stability to the grid compared to other renewable energy technologies. Therefore, the number of hydropower plants, mainly the small-scale plants, ...
    • Modelling of a Hydro Power Station in an Island Operation 

      Winkler, Dietmar; Magnúsdóttir, Arndís (Journal article; Peer reviewed, 2017)
      There is a strong focus on new renewable energy sources, such as, solar power, wind energy and biomass, in the con-text of reducing carbon emissions. Because of its maturity, hydropower is often overlooked. However, there ...
    • Modelling of Water Levels in a Reservoir using Modelica 

      Meijer, Willem; Winkler, Dietmar (Journal article; Peer reviewed, 2020)
      The regulation of hydro power plants is influenced by amongst others reservoir capacity and the knowledge about how it is influenced by changes in in- and out?ow. The hydro power reservoir Aurdalsfjord has a small capacity ...
    • Modelling the System Dynamics of Islanding Asynchronous Generators 

      Edvardsen, Håkon Molland; Winkler, Dietmar (Conference object; Peer reviewed, 2014-03)
      Asynchronous generators are often used for small hydro power stations with an installed power capacity of under 1MW. The reason for this is their robustness and low cost. In order do be able to produce active electrical ...
    • Power System Stability Using Modelica 

      Øyvang, Thomas; Winkler, Dietmar; Lie, Bernt; Hegglid, Gunne John (Conference object; Peer reviewed, 2014-12-09)
      This paper is concerned with power system modeling using the Modelica language in comparison to a traditional simulation tool. Though most common power system simulation tools are computationally efficient and reasonably ...
    • Simple modelling approach using Modelica for microbial electrosynthesis 

      Arachchige, Gamunu L. Samarakoon; Winkler, Dietmar; Sivalingam, Vasan; Dinamarca, Carlos; Bakke, Rune (Peer reviewed; Journal article, 2020)
      This study intends to develop a simple mathematical model that contributes to the integration of Microbial Electrosynthesis (MES) in AD to reduce CO2 to CH4. Open-source modelling language Modelica was used to build the ...
    • Where impact got going 

      Tiller, Michael; Winkler, Dietmar (Conference object; Peer reviewed, 2015-09-18)
      This paper discusses the impact package manager. The primary goal of this project is to support the development of a healthy eco-system around Modelica. For many other languages, the existence of an easy to use package ...