Sökning: "Voltage stability"

Visar resultat 1 - 5 av 91 uppsatser innehållade orden Voltage stability.

  1. 1. Spectroelectrochemical analysis of the Li-ion battery solid electrolyte interphase using simulated Raman spectra

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets fysik

    Författare :Edvin Andersson; [2020]
    Nyckelord :Lithium Ion Battery; Solid Electrolyte Interphase; Surface Enhanced Raman Spectroscopy; Density Functional Theory; LIB; SEI; SERS; DFT;

    Sammanfattning : Lithium Ion Batteries (LIBs) are important in today's society, powering cars and mobile devices. LIBs consist of a negative anode commonly made of graphite, and a positive cathode commonly made from transition metal oxides. Between these electrodes are separators and organic solvent based electrolyte. LÄS MER

  2. 2. A Comparison of Grid-Forming and Grid-Following Control of VSCs

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för elektroteknik

    Författare :Pontus Roos; [2020]
    Nyckelord :Voltage source converter; Synthetic inertia; Fast frequency response; Power system; STATCOM; Energy storage; Power electronics; Syntetisk svängmassa; Frekvensreglering; Elkraftsystem; energilager; kraftelektronik;

    Sammanfattning : Variable renewable energy sources are today increasingly integrated in the power system as a step towards the renewable society. The large-scale introduction of converter-based energy sources brings challenges in terms of reduced damping to the power system due to the reduced number of synchronous generators. LÄS MER

  3. 3. Electrical performance study of organic photovoltaics for indoor applications : with potential in Internet of Things devices

    Master-uppsats, Karlstads universitet

    Författare :August Andersson; [2020]
    Nyckelord :Indoor light harvesting; Internet of things IoT ; Organic Solar cell; Organic photovolaic;

    Sammanfattning : The evolution of the internet of things (IoT) opens the market opportunity for organic photovoltaic cells, especially for indoor applications where the lifetime of the organic cells is longer than outdoor. For example, IoT requires off-grid energy sources for many devices with low power consumption. LÄS MER

  4. 4. Dynamic Virtual Admittance Control Hardware-In-The-Loop Real-Time Simulation

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

    Författare :Damien Gadou-Sanyal; [2020]
    Nyckelord :;

    Sammanfattning : To enhance the transient stability and the power oscillation damping of the powergrid, supplementary controllers can be applied to the embedded point-to-point High-Voltage Direct Current (HVDC) links. The work presented in this report aimed tovalidate the Dynamic Virtual Admittance Control (DVAC) designed in SuperGridInstitute, in Software- and Hardware-In-The-Loop (SIL and HIL) simulations. LÄS MER

  5. 5. 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