Browsing Fakultet for informasjonsteknologi og elektroteknikk (IE) by Title
Now showing items 20066-20085 of 20393
-
Volatility and Dependence in Fixed Income Forward Rates with Application to Market Risk of Derivative Portfolios
(Master thesis, 2006)This thesis explores the modeling of volatility and dependence in forward rates in the fixed income market for the purpose of risk estimation in derivative portfolios. A brief background on popular quantile-based risk ... -
Voltage Control and Provision of Reactive Power Reserves - for Hove and Refsdal Power Stations
(Master thesis, 2016)In this thesis voltage control and provision of reactive power reserves were studied, for multiple generators connected to a common main transformer. The system that was considered consists of two power stations in Vik in ... -
Voltage control for optimization of power transmission for a long subsea HVAC cable
(Master thesis, 2017)The objective of this thesis is to make a dynamic system representation of a long HVAC subsea cable, to investigate the use of controlling the operation voltage to optimize the active power transmission of the cable. The ... -
Voltage Control in Distribution Network with Local Generation
(Master thesis, 2014)A growing trend is connection of new renewable energy resources to the power system. Small and medium-scale hydroelectric and wind power plants are examples of such new production with economic incentives being connected ... -
Voltage distribution in medium voltage machines for aerospace applications fed by power converters
(Master thesis, 2022)Oppgaven beskriver en detaljert MATLAB & Simulink basert modell for prediksjoner av spenningsfordelingen i viklinger utsatt for gjentatte bratte spenningsflanker dannet av en PWM-omformer. Den foreslåtte modellen er en ... -
Voltage Regulation in Low Voltage Distribution Grids - A Study of Different Technologies and Implementation of a VSC Based Series Regulator
(Master thesis, 2020)Lading av elbiler, induksjonskokeplater og laster med kraftelektronikk blir mer og mer vanlig i det norske lavspentnettet og trekker høy effekt over kortere tid. Dette introduserer nye utfordringer knyttet til spenningsproblemer ... -
Voltage Source Converter Technology for Offshore Grids: Interconnection of Offshore Installations in a Multiterminal HVDC Grid using VSC
(Master thesis, 2010)This master thesis has investigated the possible application of voltage source converters (VSC) for the interconnection of offshore installations, i.e. wind farms and petroleum platforms, in a multiterminal DC (MTDC) grid. ... -
Voltage Stability Monitoring using a Modified Thevenin Impedance
(Chapter, 2017)This paper presents a method for voltage stability monitoring based on the maximum power transfer to the load. The only required information is the system topology, the data from PMUs and the operational status of synchronous ... -
Voltage Stresses in Converter-Fed Electric Aviation Motors
(Master thesis, 2020)Vekselretterforsyning er essensiell for utviklingen mot mer kompakt og lettere komponenter for helelektrisk fly. Vekselrettere er imidlertid kjent for å forårsake skadelige effekter i lederisolasjonen på grunn av kort ... -
Voltage Support in Distributed Generation by Power Electronics
(Master thesis, 2008)There is an increasing amount of power processed through power electronics in the areas of generation interface, energy storage and loads. This increment enables possibilities for improved solutions for efficient generation ... -
Voltage Support in Distribution Grids by Model Predictive Control of the Grid Interface Converter for a Battery Energy Storage System
(Master thesis, 2023)Elektrifiseringen av dagens samfunn og den økte mengden av distribuert energiproduksjon har ført til økt press på strømnettet. Dette presset kan resultere i utfordringer knyttet til nettstabilitet, spenningskvalitet og ... -
Voltage support strategies for Overvoltage Prevention of Distributed Solar Inverters in Low-Voltage Networks
(Master thesis, 2016)The increasing penetration of distributed photovoltaic generation in low voltage distribution networks has led to higher risk of overvoltage. This has made it necessary to utilize the capability of the inverter in the ... -
Voltage Support with Reactive Power from Fast Charging Stations with Local Energy Storage and Production
(Master thesis, 2021)Norge er ledende innen elektrisk mobilitet, og norske myndigheter har et mål om at alle passasjerbiler, lette varebiler og bybusser skal være nullutslippskjøretøy innen 2025. Med økt elbilandel vil også behovet for ... -
Voltage Upgrading of Overhead Lines
(Master thesis, 2010)Statnett wants to increase the transmission capacity in their 300 kV overhead lines by upgrading the operating voltage to 420 kV. To make this possible some modifications must be done. Insulator strings have to be elongated ... -
Voltage-dependency of loads and its role in voltage control strategies
(Master thesis, 2019)En spenningsreguleringsstrategi kan sees på som et bevisst valg tatt av nettselskapet om å holde spenningene i nettet i den nedre eller øvre delen av det tillatte spenningsbåndet gitt i Forskrift om leveringskvalitet (FoL). ... -
Volterra operators on Hardy spaces of Dirichlet series
(Journal article; Peer reviewed, 2019)For a Dirichlet series symbol g.s/ D P n 1 bnn s , the associated Volterra operator Tg acting on a Dirichlet series f .s/ D P n 1 ann s is defined by the integral f 7! Z C1 s f .w/g0 .w/ dw: We show that Tg is a bounded ... -
Volume and Price in The Nordic Balancing Power Market
(Master thesis, 2016)Balansen mellom kraftproduksjonen og kraftforbruket til enhver tid er den viktigste forutsetningen for at kraftsystemet skal fungere uten forstyrrelser. Økende mengde av kraft som kommer fra fornybare energikilder, og mer ... -
Volume flow estimation of blood flow using speckle tracking
(Master thesis, 2013)A simulation of a carotid artery with no tilt and an artery with a 20 degrees tilt is performed in order to test the performance of a multi-dimensional flow velocity estimation technique based on speckle tracking. The ... -
Volume-to-volume registration
(Master thesis, 2005)Implementation of automated volume-to-volume registration applications for three separate registration steps desired in enhancing neurosurgical navigation is considered. Prototype implementations for MRI-to-MRI registration, ... -
Volumetric terrain rendering with WebGL
(Journal article; Peer reviewed, 2018)Since the introduction of WebGL in 2011, the web browser evolved into a new and promising platform for high-performance 3D games. One of the most common game elements is heightmapbased terrain, but due to the limited ...