Sökning: "Microgrids"

Visar resultat 6 - 10 av 15 avhandlingar innehållade ordet Microgrids.

  1. 6. Fundamental Limitations of Distributed Feedback Control in Large-Scale Networks

    Författare :Emma Tegling; Henrik Sandberg; Ali Jadbabaie; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Distributed control; Large-scale systems; networked control; decentralized control; fundamental limitations; networked systems; frequency control; smart grid; consensus; spatial invariance; power system dynamics; microgrids; vehicular formation systems; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : Networked systems accomplish global behaviors through local feedback interactions. The purpose of a distributed control design is to select interaction rules and control protocols that achieve desired global control objectives. LÄS MER

  3. 7. On performance limitations of large-scale networks with distributed feedback control

    Författare :Emma Tegling; Henrik Sandberg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Networked control systems; microgrids; platooning; vehicular formation; multi-agent systems; H2 norms; fundamental limitations; consensus; Distributed control; large-scale networks; oscillator networks; power networks; power system dynamics; system performance; spatially invariant systems; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : We address the question of performance of large-scale networks with distributed feedback control. We consider networked dynamical systems with single and double integrator dynamics, subject to distributed disturbances. We focus on two types of problems. First, we consider problems modeled over regular lattice structures. LÄS MER

  4. 8. Modeling, Control and Protection of Low-Voltage DC Microgrids

    Författare :Daniel Salomonsson; Lennart Söder; Brian K. Johnsson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; circuit transient analysis; dc power systems; dispersed storage and generation; load modeling; power conversion; power distribution control; power distribution faults; power distribution protection; power electronics; Electric power engineering; Elkraftteknik;

    Sammanfattning : Current trends in electric power consumption indicate an increasing use of dc in end-user equipment, such as computers and other electronic appliances used in households and offices. With a dc power system, ac/dc conversion within these loads can be avoided, and losses reduced. LÄS MER

  5. 9. Developing a Security-Enhanced Internet-of-Things Based Communication System for Smart Microgrids

    Författare :Aron Kondoro; Hannu Tenhunen; Anders Hallén; Nerey Mvungi; Masoumeh Ebrahimi; Giovanni Spagnuolo; KTH; []
    Nyckelord :Informations- och kommunikationsteknik; Information and Communication Technology;

    Sammanfattning : Access to clean and reliable electric power is still a challenge for many local communities in developing countries. Smart micro-grids are one of the new practical solutions that can take advantage of locally available resources to satisfy the energy demands of these communities. LÄS MER

  7. 10. Microgrid Power Control Strategies: Enabling Distributed Energy Resources in Power Systems

    Författare :Jéssica Santos Döhler; Cecilia Boström; Janaína Gonçalves de Oliveira; Irina Temiz; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control strategies; energy storage system; islanding operation; microgrid; multifunctional inverter; ancillary services; unsymmetrical fault.;

    Sammanfattning : As the world continues to deal with the effects of climate change, the need for carbon neu-trality becomes increasingly urgent. To achieve this goal, many countries are exploring the potential of distributed energy resources to reduce their dependence on fossil fuels and transition to renewable sources of energy. LÄS MER