Essays about: "vattenkraft"

Showing result 21 - 25 of 129 essays containing the word vattenkraft.

  1. 21. Modeling of Hydro-Power in Spine - Optimizing Electricity Production With a Piece-Wise Linear

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Siri Löfgren; Iiris Seppälä; [2022]
    Keywords : hydropower; Spine; optimization; modeling; piece-wise linear function;

    Abstract : Hydropower plays an important role in the Swedish power system and is a valuable renewable energy source with great ability for regulation. It is, therefore, crucial to plan and optimize hydropower in a way that is effective. In this project, the Skellefte River is modeled with the software Spine. READ MORE

  3. 22. Simplified Model For Simulation of Fault Ride Through at Hydropower Units

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Sebastian Söderström; [2021]
    Keywords : Fault Ride Through; Hydropower; Simulation; Generator; Simulink; Transient Stability; Gränsbryttid; Vattenkraft; Simulering; Generator; Simulink; Transient Stabilitet;

    Abstract : As new requirements for grid connected generators were implemented, the requirements for evaluating the Fault Ride Through capabilities of the generators became stricter. When refurbishing a power unit, proof that the power unit meet the requirements must be submitted to the authorities. READ MORE

  4. 23. How does hydropeaking and geological substrate affect aquatic macroinvertebrates in a regulated river?

    University essay from Karlstads universitet/Institutionen för miljö- och livsvetenskaper (from 2013)

    Author : Andreas Vernby; [2021]
    Keywords : Hydropeaking; geological substrate; aquatic macroinvertebrates; EPT species; Hester-Dendy samplers; Korttidsreglering; geologiskt substrat; akvatiska makroevertebrater; EPT; Hester-Dendy-provtagare;

    Abstract : Hydropower is an important source of renewable energy, but is often a cause of degradation to river ecosystems. Hydropeaking, i.e. the frequent alteration of discharge, is a process involved in hydropower generation and has been proven to affect aquatic organisms negatively. READ MORE

  5. 24. Modelling the Nordic Hydro Power System with Spine Toolbox

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Angelica Waernlund; [2021]
    Keywords : ;

    Abstract : In the Nordic power system, the largest balancing resource is hydro power. For future developments of the Nordic power system with more renewable and varying energy, such as wind power, the hydro power and its limitations must thus be taken into account. To be able to study this, a model with these limitations is needed. READ MORE

  6. 25. Exploateringen av Mekongfloden : en litteraturstudie om vattenkraftens påverkan på ekosystem och samhälle i Mekongregionen

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Emma Litsmark; [2021]
    Keywords : Mekongfloden; vattenkraft; reservoarer; socioekologiska förändringar;

    Abstract : Vattenkraften i Mekongfloden har stor påverkan på ekosystem, samhälle och ekonomi. Mekongregionen genomgår just nu en snabb socioekonomisk utveckling och har dessutom en ökande befolkning som kräver allt mer elektricitet, jordbruksmark och andra naturresurser. READ MORE