Blar i Institutt for elkraftteknikk på utgivelsesdato
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Evaluation of simple Fault Location on a MV Feeder with DG, using Fundamental Frequency Components
(Lecture, 2008)This paper looks into possibilities for locating short circuit faults on a MV feeder with distributed generation (DG). Power frequency measurements of voltages and currents are utilized for estimating the distance to the ... -
Teknisk/økonomisk analyse av roterende kompensatorer: Et bidrag til effektiv utnyttelse av det norske sentralnettet
(Master thesis, 2008)Det er perioder behov for økt robusthet i sentralnettet. Kombinasjonen lav last med høy import gir kritisk lave kortslutningsverdier. Det kan føre til svært uheldige konsekvenser for driften av de to HVDC-omformerne i ... -
Subsea Power Electronics: Switching of an IGBT module in a subsea converter
(Master thesis, 2008)Global increases in energy demand will inevitable lead to increased oil and gas exploration in areas not considered economically viable today. In these areas with large depths and hostile conditions subsea system solutions ... -
Investering i vannkraftverk
(Master thesis, 2008)Denne rapporten er en masteroppgave skrevet i samarbeid med BKK og institutt for elkraftteknikk. Oppgaven omhandler investering i vannkraft med vurdering av usikkerhet. Rapporten analyserer lønnsomheten i et utvidelsesprosjekt ... -
Offshore vindkraft - Tekniske og økonomiske vurderinger for utbygging og tilkobling.
(Master thesis, 2008)Det er behov for kraftutbygging i Norge på grunn av økende forbruk og tørrårsproblematikk. Ny kraftproduksjon basert på andre ressurser og økt overføringskapasitet til utlandet kan bedre forsyningssikkerheten og stabilisere ... -
Evaluation of Price Forecasts for Hydropower Expansion Planning Applications
(Master thesis, 2008)This Master Thesis deals with the importance of forecasting as exact power prices as possible for use in expansion planning. The work is a continuation of the Project Thesis finalized in December 2007 (Lind & Eggerud, ... -
Expert system for hydropower stations developed in Volve Knowledge Tools
(Master thesis, 2008)Despite the fact that hydropower stations are equipped with the latest technology in both regulation and remote control, it is not enough to replace the traditional machine expert. The machine expert was a person stationed ... -
Integrasjon av vindkraft i Troms
(Master thesis, 2008)Rapporten beskriver hvilken mulig effekt en investering i Fakken vindmøllepark på Vannøya vil utgjøre for energikonsernet Troms Kraft. Det er under arbeidet utviklet gode verktøy til bruk for investeringsbeslutning. Rapporten ... -
Korleis nytte fleirmåls beslutningsanalyse og influensdiagram til vedlikehaldsplanlegging av sjøkabelanlegg.
(Master thesis, 2008)Vedlikehald av sjøkabelanlegg er eit tema som det er lite fokus på i mange nettselskap, og lite feil og statistikkar fører ofte til ein havaristyrt strategi. I denne oppgåva ser ein på korleis fleirmåls beslutningsanalyse ... -
Evaluation of simulation tools for expansion planning
(Master thesis, 2008)This master thesis is performed at the Department of Electric Power Engineering at the Norwegian University of Science and Technology in Trondheim in the spring 2008. The thesis is done in collaboration with Statkraft ... -
Beredskap i regionalnett: En risikobasert tilnærming til lagerhold
(Master thesis, 2008)Det er i denne rapporten utviklet en metodikk for å kartlegge beredskapsbehov for reservekomponenter og utstyr spesielt tilpasset regionale kraftnett. Metoden er anvendt i praksis ved en analyse utført på regionalnettet ... -
Electric Propulsion System for the Shell Eco-marathon PureChoice Vehicle: Controlling the lights and alternative storage devices such as batteries and supercapacitors
(Master thesis, 2008)This report is divided into six main chapters. It starts off with an introductory chapter explaining the different propulsion strategies that have been considered during the last semester, and the final propulsion system ... -
Fornybare energiløsninger i Antarktis
(Master thesis, 2008)Denne rapporten undersøker muligheten for å introdusere fornybar energiproduksjon i det autonome energisystemet på forskningsstasjonen Troll i Antarktis. Per i dag er stasjonen forsynt med energi fra en dieselgenerator. ... -
Electric Generator for Ocean Wave Energy Converter
(Master thesis, 2008)This paper presents design of a Radial Flux Permanent Magnet (RFPM) ring generator for an ocean Wave Energy Converter (WEC). It has a large diameter 61.4 cm and low speed 37.5 rpm. Three phase one layer concentrated winding ... -
Modelling Reliability of Supply and Infrastructural Dependency in Energy Distribution Systems
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:87, Doctoral thesis, 2008)This thesis presents methods and models for assessing reliability of supply and infrastructural dependency in energy distribution systems with multiple energy carriers. The three energy carriers of electric power, natural ... -
Localisation of ground faults in power systems with distributed production
(Master thesis, 2008)Summary Distribution power systems experience a lot of faults due to high network utilisation and reduced investment in the infrastructure. Single phase faults are the most common. The standard distribution systems are ... -
Risk assessment as an integrated part of distribution system reinvestment project analysis
(Research report, 2008)In the ageing infrastructure of electricity distribution, the emphasis on maintenance and reinvestment decisions is ever increasing – focusing on doing the right thing at the right time. Maintenance and reinvestment ... -
Control of VSC-HVDC for wind power
(Master thesis, 2008)With the recent developments in semiconductors and control equipment, Voltage Source Converter based High Voltage Direct Current (VSC-HVDC) has attracted the growing interest of researchers. The use of VSC technology and ... -
Reliable electric power conversion for connecting renewables to the distribution network
(Doktoravhandlinger ved NTNU, 1503-8181; 2008:122, Doctoral thesis, 2008)When connecting distributed power generation systems to the utility grid, a power converter is normally placed between the main grid and the local micro-grid, at the point of common coupling. In order to synchronize the ... -
Modal Analysis of Weak Networks with the Integration of Wind Power
(Master thesis, 2008)In this master thesis the theory and practical use of modal analysis is explained, giving an introduction to the possibilities of modal analysis. The master thesis starts with a look at wind power and the design of a modern ...