Sökning: "elkraftsystem"

Visar resultat 6 - 10 av 38 uppsatser innehållade ordet elkraftsystem.

  1. 6. Data-driven cyberattack detection for microgrids

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

    Författare :Jiaying Mao; [2022]
    Nyckelord :Cyberattack detection; Deep learning network; Microgrid; Smart inverter; Cyber-physical system; Distributed system; Detektering av cyberattacker; Djupinlärning nätverk; Microgrid; Smart växelriktare; Cyberfysiska system; Distribuerade system;

    Sammanfattning : Microgrids are undergoing higher penetrations of renewables and associated power electronics, along with precise and sophisticated control and communication networks. However, such cyber-physical systems might suffer from potential cybersecurity threats and inherent low inertia. LÄS MER

  3. 7. 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

  4. 8. Small Signal Stability of Power Systems With Increased Converter Based Power Production

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

    Författare :Gustav Kjellson; Josefin Gustafsson; [2022]
    Nyckelord :Small signal stability; Power system stabilizer; Renewable energy; Grid following converters; Grid forming converters;

    Sammanfattning : The aim of this project is to analyze how increasing the share of converter-based power production in a power system affects the small signal stability. The project also aims to stabilize systems using Power System Stabilizers (PSSs), and examine the effect of two different types of power electronic converters: grid following (GFL) and grid forming (GFM). LÄS MER

  5. 9. Fallstudie-Impedansmetoden i radiella elkraftsystem : Elkraft

    M1-uppsats, Högskolan i Gävle/Elektronik

    Författare :Felicia Orellana Moza; [2021]
    Nyckelord :Elkraft; Elektronik;

    Sammanfattning : Denna studie bygger på att teoretiskt beskriva hur man beräknar fram kortslutningsströmmar för att kunna ställa in reläskydd i en större processindustri. Reläskyddet ingår i selektivplanering som används inom skyddssäkerhet för bl.a. elkraftledningar och transformatorer. LÄS MER

  7. 10. System analysis of a fossil free steel manufacturing plant powered by an offshore wind power farm

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Felix Vedin; [2021]
    Nyckelord :;

    Sammanfattning : Major changes are taking place in the Sweden’s electricity system and steel industry. Through political agreements, the current government has set national goals of 100% renewable electricity generation and a net zero GHG emissions industry by 2040. This will be achieved by increasing renewable power generation, mainly wind power. LÄS MER