Sökning: "smart grids"

Visar resultat 26 - 30 av 57 avhandlingar innehållade orden smart grids.

  1. 26. Increasing the hosting capacity of distributed energy resources using storage and communication

    Författare :Nicholas Etherden; Sami Repo; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Renewable Energy Generation; Energy Storage; Hosting Capacity; Curtailment; Demand Response; Dynamic Line Rating; Power System Communication; Smart Grid; Förnyelsebara energikällor; Energilagring; Acceptansgräns; Kommunikation i kraftsystem; Smarta elnät; Energy Engineering; Energiteknik; Electric Power Engineering; Elkraftteknik;

    Sammanfattning : The use of electricity from Distributed Energy Resources like wind and solar powerwill impact the performance of the electricity network and this sets a limit to theamount of such renewables that can be connected. Investment in energy storage andcommunication technologies enables more renewables by operating the networkcloser to its limits. LÄS MER

  3. 27. Energy Feedback and Demand Response Strategies : Exploring Household Engagement and Response Using a Mixed Methods Approach

    Författare :Anders Nilsson; Maria Malmström; Cajsa Bartusch; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy feedback; demand response; household energy consumption; energy efficiency and conservation; demand flexibility; smart grids; smart homes; Industrial Ecology; Industriell ekologi;

    Sammanfattning : Real-time energy feedback (EF) and demand response using dynamic pricing tariffs (DR) have been suggested as effective intervention strategies to meet the need for increased energy efficiency and demand flexibility in the residential sector. Although previous studies provide some empirical support for the effectiveness of EF and DR, evaluation approaches used in practical experiments and field trials commonly suffer from several methodological shortcomings, preventing deeper of knowledge on the potential and barriers for EF and DR to influence household energy consumption. LÄS MER

  4. 28. Low-temperature based thermal micro-grids: operation and performance assessments

    Författare :José Fiacro Castro Flores; Viktoria Martin; Bruno Lacarrière; Justin NingWei Chiu; Vittorio Verda; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; low-temperature district heating; active thermal micro-grid; substation operation; performance assessment; distributed heat resources; chauffage urbain basse température; micro-réseaux de chaleur urbains actifs; fonctionnement de la sous-station; évaluation de la performance; sources de chaleur distribuées; lågtemperatur fjärrvärme; aktiv fjärrvärmemikronät; fjärrvärmecentral operation; prestationsbedömning; distribuerada värmekällor; Energy Technology; Energiteknik;

    Sammanfattning : Energy use in the urban environment is vital for the proper functioning of our society, and in particular, comfort heating –or cooling– is a central element of our energy system often taken for granted. Within this context, district energy systems and especially, district heating (DH) systems must evolve to adapt to the upcoming decades-long transition towards a sustainable energy system. LÄS MER

  5. 29. 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

  7. 30. 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