Sökning: "islanded mode"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden islanded mode.

  1. 1. Soft Energization and Blackout Recovery of Offshore Wind Farm Export System

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

    Författare :Nicolas Mile; [2022]
    Nyckelord :STATCOM; ES-STATCOM; Blackout; Blackstart; Energization; Restoration; Offshore Wind; Power System; STATCOM; ES-STATCOM; Strömavbrott; Svartstart; Spänningssätta; Återställning; Havsbaserad Vindkraft; Energisystem;

    Sammanfattning : Power generation of the future will be dominated by renewable energy sources. This is a positive trend as society aims to improve sustainability, energy security, and reduce CO2 emissions. This progress however bears challenges for the power systems of the future. LÄS MER

  3. 2. Operation of battery energy storage system for frequency control of hydropower operated in island mode

    Uppsats för yrkesexamina på avancerad nivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Amanda Hallblad; [2020]
    Nyckelord :Battery energy storage system BESS ; hydropower; microgrid MG ; operational strategies; frequency control; PowerFactory;

    Sammanfattning : The purpose of this study is to analyse how a battery energy storage system (BESS) can support the frequency and voltage stability for an islanded microgrid containing a hydropower plant. Two different microgrids, both situated in Sweden, are evaluated. Modelling and dynamic simulations are conducted in the PowerFactory tool. LÄS MER

  4. 3. LCA of Microgrid System: a Case Study at ‘North-five Islands’ of Changshan Archipelago, China

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Jiang Yuning; [2019]
    Nyckelord :Microgrid system; Life cycle Assessment LCA ; Climate change impact; Greenhouse gas emissions GHG ; China;

    Sammanfattning : Microgrid can provide stable, clean, and sustainable electricity supply for remote places since it can operate on renewable energy sources and work isolated from the utility grid. This thesis evaluates the life cycle greenhouse gas (GHG) emissions of the microgrid system which is located at the ‘North-five Islands’ of Changshan archipelago in China. LÄS MER

  5. 4. Analysis of Simris Hybrid Energy System Design and Working and Checking the Effects of Using High Capacity Factor Wind Turbine

    Magister-uppsats, Högskolan i Halmstad/Akademin för ekonomi, teknik och naturvetenskap

    Författare :Naeem Akhtar; [2019]
    Nyckelord :Renewable energy; Microgrids; Wind turbines; Solar PV; Storage betteries;

    Sammanfattning : The world is entering the future where integration of renewable energy sources within the power grid will play an important role when facing the challenge of reducing global warming. The intermittent generation characteristics associate with renewable energy sources can be handled by the implementation of microgrids. LÄS MER

  7. 5. Microgrid Safety and Protection Strategies

    Master-uppsats, KTH/Elektroteknisk teori och konstruktion

    Författare :Aryudha Hartono; [2018]
    Nyckelord :IB-RES; grid-connected mode; islanded mode; short circuit; IED; directional zero and negative sequence current protection; unbalanced load flow; protection coordination; fault ride-through;

    Sammanfattning : One of the challenging issues with the Microgrid is that the bidirectional power flow providedby the distributed generator (DG) which modify the fault current level. Furthermore, theinverter based-renewable energy source (IB-RES) limits the total fault current contributionto the grid due to its thermal capability. LÄS MER