Sökning: "nonlinearities"

Visar resultat 1 - 5 av 59 uppsatser innehållade ordet nonlinearities.

  1. 1. Model Predictive Urea Dosing Control Strategy for Heavy-Duty Diesel Vehicles

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Mathias Schmekel; [2023]
    Nyckelord :Model predictive control; Selective catalytic reduction; Nitrogen oxides; Modell-prediktiv reglering; Selektiv katalytisk reduktion; Kväveoxider;

    Sammanfattning : Stricter requirements on the reduction of Nitrogen Oxides (NOx) in the emissions of heavy-duty diesel vehicles drives development for more efficient aftertreatment systems. An ammonia covered catalyst is one of the most successful technologies in reducing NOx by converting it into the harmless byproducts water and nitrogen. LÄS MER

  3. 2. Methodology for analysis of vibration isolating systems

    Master-uppsats, Linköpings universitet/Mekanik och hållfasthetslära

    Författare :Jonas Olsson; [2023]
    Nyckelord :Vibration;

    Sammanfattning : Vibration causes problems in many kinds of machinery including fighter aircraft. It can, for example, cause structural fatigue, malfunction in equipment and injuries to humans. The sources of vibration are engines, flow disturbance and separation of external loads, to mention some. LÄS MER

  4. 3. Estimating CO2 reductions from renewable energy sources : The impact of power system nonlinearities

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Kristoffer Berglund; [2022]
    Nyckelord :CO2 reduction; Dispatch model; Econometric model; Unit commitment; CO2-reduktion; ekonometriska modeller; produktionssimuleringsmodeller;

    Sammanfattning : Replacing conventional generation with renewable generation in power systems is essential for reducing CO2 emissions. It is important to know how effective renewables are in reducing CO2 emissions. Since CO2 reduction cannot be measured directly, different methods have been used to estimate reduction of CO2 emissions. LÄS MER

  5. 4. Modeling the Head Effect in Hydropower River Systems using MILP and BLP Approaches

    Master-uppsats, Linköpings universitet/Tillämpad matematik; Linköpings universitet/Tekniska fakulteten

    Författare :Lina Larsson; Mikaela Lindberg; [2022]
    Nyckelord :Hydropower optimization; Hydropower scheduling; The head effect; Bilinear programming; Mixed-integer linear programming;

    Sammanfattning : With a fast-growing electricity demand and a larger proportion of intermittent energy sources follows a greater need for flexible and balancing sources of electricity, such as hydropower. Planning of hydropower production is considered to be a difficult problem to solve due to several nonlinearities, combinatorial properties and the fact that it is a large scale system with spatial-temporal coupling. LÄS MER

  7. 5. A comparison of different machine learning algorithms applied to hyperspectral data analysis

    Master-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Axel Vikström; [2021]
    Nyckelord :;

    Sammanfattning : Hyperspectral image analysis works with image data where each pixel contains hundreds of wavelengths acquired from spectral measurements. It is a growing field of research in the sciences and industries because it can distinguish visually similar objects. LÄS MER