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  1. 1. Evaluation of OPAL-RT Simulator through Simulation of Microgrid with High Penetration of DER

    University essay from Uppsala universitet/Elektricitetslära

    Author : Anton Grönberg; [2024]
    Keywords : Real-Time simulation; Power System Simulation; OPAL; DER;

    Abstract : This thesis was written in collaboration with the department of electrical engineering at Uppsala University. It evaluates and tests the potentials and limitations of using the OPAL-RT simulator as a tool for designing and developing control strategies used in microgrids with a high penetration of distributed energy resources. READ MORE

  3. 2. Local Voltage Control in Converter Based PV Generation

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Charlotta Sporre; [2024]
    Keywords : distributed generation; active network management; low voltage distribution network; delta control; voltage control; Technology and Engineering;

    Abstract : As the world is trying to rid itself of its dependence on fossil fuels, the need for renewable energy is rapidly increasing. In the power distribution network (DN), this takes the form of distributed generation (DG) from renewable sources, such as photovoltaic (PV) power production. READ MORE

  4. 3. Implementation of Dyson equation to accelerate convergence in RS-LMTO-ASA code

    University essay from Uppsala universitet/Materialteori

    Author : Elis Uebel; Viktor Frilén; [2024]
    Keywords : Density functional theory; Dyson equation;

    Abstract : First-principle calculations is a key ingredient for us to understand, improve and design new materials. Density functional theory (DFT) [1] has proven to be a very powerful tool and a number of different versions exist depending on the problem at hand. READ MORE

  5. 4. Emission factors and methods used in climate impact assessments of energy use in Swedish heated buildings - Assessing district heating and electricity as energy source

    University essay from Lunds universitet/Institutionen för arkitektur och byggd miljö; Lunds universitet/Avdelningen för Energi och byggnadsdesign

    Author : Louise Piltz Vitanc; Matilda Hinsegård; [2023]
    Keywords : Life Cycle Assessment; Climate Calculation; Methodology; B6; Global Warming Potential; Technology and Engineering;

    Abstract : When the property- and building industry moves towards new solutions targeting reduced climate impact, this puts pressure on the building owners and companies to calculate the climate impact of buildings. It may seem easy, but there are various methods and guidelines to navigate around. READ MORE

  6. 5. Hydrogen Pipeline Infrastructure Design for Germany in 2045

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Flora Marianne von Mikulicz-Radecki; [2023]
    Keywords : Hydrogen Transport Infrastructure; Pipeline Networks; Retrofitting; Infrastructure Planning; Peak Hour Hydrogen Demand; Utilization Rate; Costs of Avoided Emissions; Carbon Neutrality; Infrastruktur för vätgastransport; rörledningsnät; eftermontering; infrastrukturplanering; efterfrågan på vätgas under m;

    Abstract : Germany’s commitment to carbon neutrality by 2045 underscores the need for climate action, with hydrogen’s multiple uses in industry, transport, and energy offering a viable solution. Efficient retrofitting of the extensive natural gas pipeline network can enable hydrogen to be transported from supply to demand centers. READ MORE