Essays about: "Kärnkraft"

Showing result 11 - 15 of 52 essays containing the word Kärnkraft.

  1. 11. Protection of HVDC Grids Against Blackouts (Simulation)

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

    Author : Amal Al-Ammari; Dinah Atchan; [2021]
    Keywords : High Voltage Direct Current HVDC ; Voltage derivative dv=dt algorithm; Traveling wave algorithm; PSCAD simulation; Multi-terminal grid; Fault detection; Threshold value; Offshore HVDC; DC breaker; Voltage collapse;

    Abstract : In the search for green energy to combat climatechange, a shift from conventional energy sources such as coal,oil, and nuclear towards Renewable Energy Sources (RES) isneeded. This shift poses a threat to the stability of the powergrids as RES do not contribute with rotating mass in the system. READ MORE

  3. 12. Frequency Stability in Future Low Inertia Power Systems With Battery Support

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

    Author : Alessandro Bonetti; Emil Bergvall; [2021]
    Keywords : Battery power support; Frequency Containment Reserves; Fast Frequency Reserves; Low inertia; Renewable Energy Sources;

    Abstract : In the search for green energy to combat climatechange, a shift from conventional energy sources such as coal,oil, and nuclear towards Renewable Energy Sources (RES) isneeded. This shift poses a threat to the stability of the powergrids as RES do not contribute with rotating mass in the system. READ MORE

  4. 13. Real-time Classification of Multi-sensor Signals with Subtle Disturbances Using Machine Learning : A threaded fastening assembly case study

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

    Author : Theodor Olsson; [2021]
    Keywords : Multivariate time series classification; Residual-based fault detection; Low-pass filter; Support vector machine; Threaded fastening assembly; Multivariat tidserieklassificering; Residual-baserad feldetektering; Lågpass-filter; Stödvektormaskin; Åtdragningsmontering;

    Abstract : Sensor fault detection is an actively researched area and there are a plethora of studies on sensor fault detection in various applications such as nuclear power plants, wireless sensor networks, weather stations and nuclear fusion. However, there does not seem to be any study focusing on detecting sensor faults in the threaded fastening assembly application. READ MORE

  5. 14. The potential role of energy communities in Sweden

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Ola Mattsson; [2021]
    Keywords : Energy communities; Community energy; Renewable energy; energigemenskaper; energisamfälligheter; förnybar energi; Energycommunities; Decentralization; sustainable energy system; Kooperativ; Earth and Environmental Sciences;

    Abstract : To combat the ongoing climate change, a sustainable energy system is essential. In recognition of this, Sweden has set a national goal of 100% renewable energy by the year 2040. However, to reach this goal, it is important that efficient tools are utilized. The EU suggests that energy communities can act as one such tool. READ MORE

  6. 15. Evaluation of transition towards zero emission commuter ferries : Comparative Analysis of Fuel-based and Battery-based Marine Propulsion System from financial and environmental perspectives

    University essay from KTH/Marina system

    Author : Varun Goel; Sonja Wadelius; [2021]
    Keywords : Water-borne public transport; Maritime industry; marine propulsion system; marine Li-ion batteries; diesel-electric; diesel-mechanical; all-electric; life cycle assessment; cost assessment.; Vattenburenkollektivtrafik; marinaindustrin; marinaframdrivningssystem; marinabatterisystem; dieselelektrisk; diesel mekanisk; helt elektrisk; livscykelanalys; kostnadsanalys.;

    Abstract : The purpose of this study is to compare the life-cycle cost and environmental impact of the existing fuel-based propulsion system, on public commuter ferries in Stockholm, with a battery based propulsion system. The study is divided into multiple layers. READ MORE