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Visar resultat 16 - 20 av 22 uppsatser som matchar ovanstående sökkriterier.

  1. 16. Techno-economical modeling of a PtG plant for operational optimization in the context of gas grid injection in France

    Master-uppsats, KTH/Kemiteknik

    Författare :Corey Scott Duncan; [2020]
    Nyckelord :hydrogen; SNG; power-to-gas; electricity curtailment; decarbonization; vätgas; elektrolys; PtG; elnät; SNG;

    Sammanfattning : Klimatförändringar är den enskilt största utmaningen som mänskligheten står inför under 2000-talet. För att ta itu med denna utmaning förutses förnybara energikällor en stor ökning av andelen primärenergi globalt. LÄS MER

  3. 17. Evaluation of KPIs and Battery Usage of Li-ion BESS for FCR Application

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Samuel Jansson; [2019]
    Nyckelord :Evaluation; Key performance indicator; battery energy storage system; frequency regulation; frequency containment reserve; lithium-ion; energy efficieny; response time; performance;

    Sammanfattning : The main purpose of this thesis was to develop and evaluate Key Performance Indicators (KPIs) and battery usage associated with Lithium-ion Battery Energy Storage Systems (LiBESS) used as Frequency Containment Reserve (FCR). The investigation was based on three of Vattenfall´s LiBESS projects that use the same lithium-ion battery technology but vary in system rating and configuration. LÄS MER

  4. 18. Optimal Day-Ahead Scheduling and Bidding Strategy of Risk-Averse Electric Vehicle Aggregator : A Case Study of the Nordic Energy and Frequency Containment Reserve Markets

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

    Författare :Jacob Dalton; [2018]
    Nyckelord :;

    Sammanfattning : The Nordic synchronous grid is facing a number of challenges. The ongoingphaseout of synchronous generation coupled with increased penetration ofintermittent renewable generation is leading to reduced system inertia. LÄS MER

  5. 19. Grid impact study of frequency regulation with EVs

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Emma Blomgren; [2018]
    Nyckelord :Electric vehicles EVs ; grid impact; ancillary services; frequency regulation; FCR-N; vehicle-to-grid V2G ; voltage; reactive power; load profile; Technology and Engineering;

    Sammanfattning : The ongoing grid paradigm shift has resulted in synchronous generators currently being phased out. As the generators have been providing ancillary services, such as frequency control regulation, this means that new technologies to perform ancillary services need to be developed and evaluated. LÄS MER

  7. 20. Variations in the primary control availability : An investigation of market conditions’ influence on the FCR-N product

    Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Johan Mann; Kasper Dahlin; [2015]
    Nyckelord :Primary control; primary regulation; electricity market; FCR-N; Frequency Containment Reserve for Normal Operation; frequency control.;

    Sammanfattning : The systematic implementation of intermittent energy production sources has made the energy system more volatile and unpredictable than ever before. This development increases the importance of balancing services, in particular the primary control. However, the current research that has been conducted on the primary regulation products is limited. LÄS MER