Search for dissertations about: "Hydropower"
Showing result 1 - 5 of 175 swedish dissertations containing the word Hydropower.
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1. Hydropower Area Equivalents : Reduced Models for Efficient Simulation of Large-Scale Hydropower Systems
Abstract : With over 4000 TWh yearly electricity production worldwide, hydropower plays an important role in many power systems. Unlike many other renewable energy sources, hydropower has a certain degree of controllability and high levels of flexibility over several time scales. READ MORE
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2. Graphene as Solid Lubricant in Polymer Composites : With Application in Hydropower Bearings
Abstract : With a rising global demand for green energy production, hydropower plays a key role in securing a reliable and sustainable energy supply. Hydropower is the largest and most efficient renewable energy source, with an ever-increasing capacity. READ MORE
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3. The Frequency of the Frequency : On Hydropower and Grid Frequency Control
Abstract : Variations in the electricity consumption and production connected to the power system have to be balanced by active control. Hydropower is the most important balancing resource in the Nordic system, and will become even more important as the share of variable renewable energy sources increases. READ MORE
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4. Grid frequency stability from a hydropower perspective
Abstract : Many AC grids suffer from decreased frequency stability due to less system inertia. This has increased the risk of large-scale blackouts. This thesis and its papers address the frequency stability problem from a hydropower perspective.Grid frequency stability assessments often require accurate system inertia estimates. READ MORE
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5. On optimal hydropower bidding in systems with wind power : Modeling the impact of wind power on power markets
Abstract : The introduction of large amounts of wind power into power systems will increase the production uncertainties due to unforeseen wind power production variations. This will have a significant impact on the required balance management quantities. READ MORE