Sökning: "primary frequency regulation"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden primary frequency regulation.

  1. 1. Optimization of Kaplan turbines for frequency regulation in hybrid hydropower plants

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Nayan Narkhede; [2022]
    Nyckelord :Kaplan; Kaplan turbines; frequency regulation; hybrid hydropower plants; wear and tear; guide vanes; runner blades;

    Sammanfattning : The increasing penetration of variable renewable energy sources in the Nordic Power System is causing frequency quality degradation and has increased the importance of primary frequency control provided by hydropower plants. Hydropower is the world’s largest renewable energy source. LÄS MER

  3. 2. Combining Smart Energy Storage with a Nordic PV Park : An explorative study of revenue-improving and cost-reducing battery services

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Byggteknik och byggd miljö

    Författare :Amanda Bränström; Jonna Söderberg; [2021]
    Nyckelord :battery storage; energy storage; PV park; primary frequency regulation; energy arbitrage; NPV; VRE; Li-ion; service stacking;

    Sammanfattning : With global climate change as the main driver, there is an increase towards including more variable renewable energy (VRE) sources in the electricity mix. Energy production from utilizing the photovoltaic effect, or PV power, is increasing rapidly and is visioned to cover 5 – 10 % of Sweden’s electricity demand in 2040. LÄS MER

  4. 3. Effects of the 2018 drought on mire productivity in Skogaryd - Evaluation of ground sensors, satellite data and meteorological data

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Ines Júlio Alfredo; [2021]
    Nyckelord :Sentinel 2; Vegetation Indices; Ground Sensors; Drought and Mire; Earth and Environmental Sciences;

    Sammanfattning : The drought is a complex meteorological phenomenon associated with low precipitation and low water saturation in atmosphere, soils and plants and can has a great effect on aboveground biomass and change the structure and function of the ecosystems. The droughts also are known to reduce the primary and secondary productivity of vegetation. LÄS MER

  5. 4. Techno-economic analysis of PV and energy storage systems for Swedish households

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Alia Amber Ahmed; [2020]
    Nyckelord :PV systems; Energy storage; STandUP;

    Sammanfattning : As more countries progress towards renewable energy, intermittency in the power system is causing an unreliable power supply. Flexibility solutions from prosumers, which both consume and produce electricity, is one solution to provide stability to the power system. LÄS MER

  7. 5. Virtual Power Plant Contributing to Primary Frequency Containment Using Demand Response - A case study of a commercial building

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Viktor Persson; [2020]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The Swedish power grid is experiencing an ever-growing challenge to efficiently balance the grid. An increasing share of intermittent generation, decreased system inertia, continued electrification and more distributed energy resources result in an increasing need for flexibility. LÄS MER