Blar i Publikasjoner fra CRIStin - SINTEF Energi på tittel
Viser treff 1572-1591 av 1614
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Virtual Friction Control for Power System Oscillation Damping with VSC-HVDC Links
(Chapter; Peer reviewed, 2019)This paper presents a technique for damping of oscillations in ac grids by control of VSC-HVDC links. The effect of the proposed controller is equivalent to a mechanical friction between two asynchronous networks (modelled ... -
Virtual Friction for Oscillation Damping and Inertia Sharing from Multi-Terminal VSC-HVDC Grids
(Chapter; Peer reviewed, 2020)This paper proposes a control scheme for multi-terminal HVDC (MTDC) interconnections that introduces an effect equivalent to a mechanical coupling between asynchronous ac networks providing damping of frequency oscillations ... -
Virtual Impedance Design for Power Quality and Harmonic Sharing Improvement in Microgrids
(Chapter; Peer reviewed, 2019)One of the main challenges of decentrally operated islanded microgrids has been proper harmonic sharing for parallel connected inverters. This is largely affected by differences in the feeder impedances of the inverters. ... -
Virtual Synchronous Machine Control of VSC HVDC for Power System Oscillation Damping
(Chapter; Peer reviewed, 2018)Two different methods for implementing inertial damping on a Virtual Synchronous Machine (VSM) and their potential for attenuating power system oscillations when utilized in a VSC HVDC terminal are investigated in this ... -
A Virtual Synchronous Machine-based Control for Eliminating DC-side Power Oscillations of Three-Phase VSCs under Unbalanced Grid Voltages
(Chapter; Peer reviewed, 2021)This paper presents a Virtual Synchronous Machine (VSM)-based control method for avoiding dc-side power oscillations in grid connected voltage source converters (VSCs) when operating under under unbalanced conditions. The ... -
Visualization and Measurement of Swirling Flow of Dry Ice Particles in Cyclone Separator-Sublimator
(Peer reviewed; Journal article, 2022)The dry ice sublimation process of carbon dioxide (CO2 ) is a unique, environmentally friendly technology that can achieve a temperature of −56 ◦C or lower, which is a triple point of CO2 in CO2 refrigeration systems. In ... -
Voltages and AC Corrosion on Metallic Tubes in Umbilical Cables Caused by Magnetic Induction From Power Cable charging Currents
(Journal article; Peer reviewed, 2018)Offshore umbilical cables often include both power cables and elements such as metallic tubes and signal cables. It was concluded from a recent failure of stainless tubes that AC corrosion was the failure cause. This paper ... -
Vulnerability analysis of HVDC contingencies in the Nordic power system
(Chapter; Peer reviewed, 2018)In the increasingly interconnected and integrated European power system, transmission system operators need to consider new kinds of risk associated with the interconnection to neighbouring systems. For the Nordic power ... -
Vulnerability and security in a changing power system
(SINTEF Energi. Rapport;, Research report, 2013)This report presents the main results from the knowledge-building project Vulnerability and security in a changing power system. The main stakeholders of this project are the energy authorities, system operators and network ... -
Vulnerability indicators for electric power grids
(SINTEF Energi. Rapport;TR A7276, Research report, 2013)This report presents a framework and methodology to develop indicators to monitor the vulnerability of the electric power grid. It establishes a scientific foundation by defining vulnerability and the different dimensions ... -
Vulnerability of the Nordic Power System
(Teknisk rapport / SINTEF energiforskning;, Research report, 2004) -
Vulnerability of the Nordic Power System - Executive Summary
(Teknisk rapport / SINTEF energiforskning;, Research report, 2004) -
Vurdering av kraftsituasjonen 2021‐2022 - Del 1 ‐ Magasindisponering høsten 2021
(SINTEF Rapport;, Research report, 2022)Denne rapporten beskriver første del av utredningen "Vurdering av kraftsituasjonen 2021‐2022", som SINTEF Energi utfører på oppdrag fra OED. Hovedfokus i denne delen av utredningen er på magasindisponering høsten 2021. Vi ... -
Vurdering av kraftsituasjonen 2021‐2022 - Sluttrapport
(SINTEF Rapport;, Research report, 2023)Denne rapporten beskriver resultat fra prosjektet "Vurdering av kraftsituasjonen 2021‐2022", som SINTEF Energi har utført på oppdrag fra OED. Rapporten består av fire hoveddeler. Den første delen omhandler magasindisponering ... -
Vurdering av vanntemperatur i Aurlandsvassdraget i perioden 2004-2006
(SINTEF Energi. Rapport;TR A7008, Research report, 2010)Dette studiet har hatt som hovedmål å analysere vanntemperaturforholdene i Aurlandsvassdraget med den hensikt å bedre forstå hvilke faktorer som påvirker vanntemperaturen i Aurlandselva, samt foreslå tiltak som vil kunne ... -
Vurdering av vanntemperatur i Aurlandsvassdraget i perioden 2004-2006 og 2010
(SINTEF Energi. Rapport;TR A7077, Research report, 2011)Vurdering av vanntemperatur i Aurlandsvassdraget i perioden 2004-2006 og 2010 -
Waste-to-energy technology integrated with carbon capture – Challenges and opportunities
(Peer reviewed; Journal article, 2020)Carbon dioxide emission is a serious environmental issue that humankind must face soon. One of the promising technologies for reducing global CO2 emissions is oxy-fuel combustion (OFC) technology, which belongs to the ... -
Water consumption from hydropower plants – review of published estimates and an assessment of the concept
(Journal article; Peer reviewed, 2013) -
Water values in future power markets
(Chapter; Peer reviewed, 2017)In this paper we elaborate on how a hydropower producer's expected marginal value of water (water value) is affected when considering both sales of energy and reserve capacity in a liberalized market setting. We derive ...