Blar i USN Open Archive på forfatter "Winkler, Dietmar"

Viser treff 1-20 av 25

    • Ammonium as a Carbon-Free Electron and Proton Source in Microbial Electrosynthesis Processes 

      Sivalingam, Vasan; Dinamarca, Carlos; Arachchige, Gamunu L. Samarakoon; Winkler, Dietmar; Bakke, Rune (Peer reviewed; Journal article, 2020)
      Biogas upgrading to biomethane with microbial electrosynthesis (MES) is receiving much attention due to increasing biomethane demands and surplus renewable energy. Research has demonstrated the feasibility of MES to increase ...

    • 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 ...

    • Application of Design of Experiments to Verification of a Hydro Power Plant 

      Pham, Le Nam Hai (Master thesis, 2022)
      Abstract will be available on 2024-05-18

    • Applying Design of Experiments Method for the Verification of a Hydropower System 

      Pham, Le Nam Hai; Winkler, Dietmar (Chapter, 2022)
      Today, renewable energy plays a major role in the transition towards environment-friendly energy sources. Hydropower is one of the most important renewable energy sources leading to the high interest of research associated ...

    • Developing protective limiters for a hydro power controller in modelica 

      Manoranjan, Luxshan; Winkler, Dietmar (Peer reviewed; Journal article, 2021)
      In recent years the operation of electrical power plants has become more and more challenging due to a more dynamic operation pattern in order to keep the voltage quality within the limits of what the electrical network ...

    • Developing Voltage Droop/Compensation Controller for a Hydro Power Controller in Modelica 

      Manoranjan, Luxshan; Winkler, Dietmar (Peer reviewed; Journal article, 2022)
      With the introduction of unregulated renewable energy such as wind, solar and tidal power, the operation of the electrical grid has become more and more challenging. The more dynamic production pattern requires more advanced ...

    • Development of a HIL system for simulating FMUs 

      Haugnes, Benjamin (Master thesis, 2023)
      Several years ago, USN purchased a servo test stand for education purposes, to demonstrate small-scale load handling, consisting of two induction machines connected to each other, and controlled by its own driver. The servo ...

    • Development of an open control interface for a servo machine test stand 

      Kvalsund, Anniken Semb (Master thesis, 2022)
      For noen år siden gikk USN til anskaffelse av et servomaskin testoppsett, bestående av en servomaskin med tilhørende drive koblet til en frekvensstyrt asynkronmaskin. Oppsettet er brukt til småskala lasthåndteringsdemonstrasjoner ...

    • DroneLibrary: Multi-domain Drone Modeling in Modelica 

      Podlaski, Meaghan; Vanfretti, Luigi; Winkler, Dietmar (Chapter, 2023)
      In the development of complex, novel electrified aerial systems such as Unmanned Aerial Vehicles (UAVs) and electric vertical take-off and landing (eVTOL) systems, multi-domain modeling and simulation studies can provide ...

    • Efficient parameterization of modelica models 

      Beutlich, Thomas; Winkler, Dietmar (Peer reviewed; Journal article, 2021)
      This article presents the different approaches and use cases for efficient parameterization of Modelica models by means of external data resources. The main motivation is to improve the overall quality, testability and ...

    • 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 ...

    • Formulation of Stochastic MPC to Balance Intermittent Solar Power with Hydro Power in Microgrid 

      Pandey, Madhusudhan; Winkler, Dietmar; Sharma, Roshan; Lie, Bernt (Peer reviewed; Journal article, 2021)
      In a microgrid with both intermittent and dispatchable generation, the intermittency caused by sources such as solar power and wind power can be balanced using dispatchable sources like hydro power. Both generation and ...

    • Mechanistic Model of an Air Cushion Surge Tank for Hydro Power Plants 

      Pandey, Madhusudhan; Winkler, Dietmar; Vereide, Kaspar; Sharma, Roshan; Lie, Bernt (Peer reviewed; Journal article, 2022)
      Due to the increasing use of renewable energy sources, and to counter the effects of fossil fuels, renewable dispatchable hydro power can be used for balancing load and generation from intermittent sources (solar and wind). ...

    • 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 synchronisation control for a hydro power controller 

      Hellborg, Jonatan; Tollefsen, Tonje; Bhusal, Khemraj; Winkler, Dietmar (Peer reviewed; Journal article, 2021)
      This paper presents the modelling of a synchronisation control as used inside a typical hydro power controller for small hydro power plants. It was built using the open-source modelling language Modelica by use of the ...

    • Modelling the System Dynamics of Islanding Asynchronous Generators 

      Edvardsen, Håkon Molland; Winkler, Dietmar (Journal article; 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 ...