Browsing Institutt for elkraftteknikk by Title
Now showing items 2221-2240 of 2430
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The impact of policy actions and future energy prices on the cost-optimal development of the energy system in Norway and Sweden
(Journal article; Peer reviewed, 2017)This paper studies the effects of policy actions on the energy systems in Norway and Sweden, including a nuclear shutdown, a cancelation of restricted hydropower and an expansion of export capacity to Europe. This study ... -
The impact of protection system failures and weather exposure on power system reliability
(Chapter, 2019)Extreme weather is known to cause failure bunching in the electrical transmission system. However, protection systems can also contribute to the worsening of the system state through spontaneous, missing or unwanted operation ... -
The impact of protection systems on power system reliability
(SINTEF Energi. Rapport;, Research report, 2014)This report is a collection of memos written to describe the methodology for quantifying the impact of protection systems on power system reliability. Including the effect of protection system response scenarios on a ... -
The impact of time-frequency estimation methods on the performance of wave energy converters under passive and reactive control
(Journal article; Peer reviewed, 2018)A number of wave energy controllers tune the power take-off (PTO) system to the frequency of incident waves. Since real ocean waves are non-stationary by nature and not defined by a single frequency component, the PTO can ... -
The impact of Zero Energy Buildings on the Scandinavian energy system
(Journal article; Peer reviewed, 2017)This paper investigates how an extensive implementation of net Zero Energy Buildings (ZEBs) affects cost-optimal investments in the Scandinavian energy system towards 2050. Analyses are done by a stochastic TIMES model ... -
The Influence of Local Energy Tariffs on a Norwegian Local Market
(Master thesis, 2020)Overgangen til et fornybart forbrukssentrisk energisystem forventes å øke strømforbruket i Norge. En økning i distribuert generasjon av fornybare energikilder er et forventet resultat av denne overgangen. En hurtig økning ... -
The insulation of HVDC extruded cable system joints. Part 1: Review of materials, design and testing procedures
(Journal article; Peer reviewed, 2019)This position paper by the DEIS HVDC Cable Systems Technical Committee provides a review of existing diagnostic electrical and dielectric techniques for testing the insulation of polymeric extruded HVDC cable joints in the ... -
The insulation of HVDC extruded cable system joints. Part 2: Proposal of a new AC voltage PD measurement protocol for quality control during routine tests
(Journal article; Peer reviewed, 2019)The review of materials, design and testing of joints for HVDC extruded cable systems provided in previous Part 1 paved the way to this Part 2 position paper by the DEIS HVDC Cable Systems Technical Committee, whose aim ... -
The Mode Mixing Problem and its Influence in the Neural Activity Reconstruction
(Journal article; Peer reviewed, 2019)This paper presents and discusses the challenge of mode mixing when using the Empirical Mode Decomposition (EMD) to identify intrinsic modes from EEG signals used for neural activity reconstruction. The standard version ... -
The need for Inertia in the Nordic Power System
(Master thesis, 2015)The Nordic power system is changing towards an increasing share of new renewable power sources. Conventional power sources contribute with a large amount of kinetic energy in the system due to their synchronously connected ... -
The Nordic Transparency Model for Analysis
(Master thesis, 2021)Det nordiske elektriske kraftsystemet er som alle andre kraftsystemer i konstant utvikling, med økende kompleksitet. Samtidig som systemets topologier og krav til driftsikkerhet er dynamiske og økende, er dagens metoder ... -
The Performance and Potential for PV systems at Northern Latitudes
(Master thesis, 2015)What is the performance and potential for PV systems at northern latitudes, is the research question for this thesis. In order to answer this a literature review have been done and a case study of, and visit to, a 236 kWp ... -
The Potential for Fuel Cells to Provide Electricity and Heat Supply in Norwegian Buildings
(Master thesis, 2021)Norge blir ofte betegnet som Europas grønne batteri på grunn av den massive mengden vannkraft som finnes rundt i det fjellstrakte landskapet, likevel finnes det et stort potensiale for å kutte karbonfotavtrykket i flere ... -
The Regulatory Framework for Market Transparency in Future Power Systems under the Web-of-Cells Concept
(Journal article; Peer reviewed, 2019)This paper investigates the regulatory rules of market transparency which could be applied within the wholesale electricity market and market for frequency and voltage control in the Web-of-Cells (WoC) decentralized power ... -
Theory of symmetric winding distributions and a general method for winding MMF harmonic analysis
(Peer reviewed; Journal article, 2021)One of the main challenges in motor design is the winding layout, including winding distributions and magnetomotive force (MMF) harmonic analysis. Considering some shortcomings in the existing theories for winding distributions ... -
Thermal Analysis of ModHVDC Generator using Thermally Conductive Electrically Insulating Materials for Improved Heat Transfer
(Master thesis, 2023)Etablering av utaskjærs vindturbin parker presenterer seg som en mulig løsning til å forsyne trengt fornybar energi og samtidig bidra til det grønne skiftet. Bruk av høyspent DC mellom utaskjærs og land installasjoner er ... -
Thermal comfort with simplified heat distribution systems in highly insulated buildings
(Master thesis, 2014)The increasing energy consumption and its consequences have led to a major need for energy saving measures. Therefore, the passive house concept has been introduced. Passive houses have a low heating demand, so that it is ... -
Thermal Equilibrium and Wet Gas Compressor Performance
(Master thesis, 2011)The wet gas performance model established for this master s thesis is based on results achieved from a single stage, low pressure ratio, centrifugal compressor set up at NTNU. Water droplets are injected to the flow right ... -
Thermal interruption performance of ultrahigh-pressure free-burning nitrogen arc
(Chapter, 2020)In this paper, an experimental investigation of the thermal interruption performance of free-burning nitrogen arcs at 1 bar, 20 bar, and 40 bar filling pressures is reported. This work contributes to the fundamental ... -
Thermal Mapping of the Hydrogenerator’s Reactive Power Boosting Ability at Various Time Windows
(Chapter, 2023)In the future, bulk power generation facilities like large hydropower plants need to be utilized more flexibly and provide extended services over shorter time intervals. This work presents a comprehensive thermal mapping ...