Blar i Institutt for elkraftteknikk på emneord "MTENERG energi og miljø"
Viser treff 1-20 av 83
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A Method for bidding in sequential Capacity Reserve Markets using mixed-integer programming
(Master thesis, 2012)System security and power quality is important in today's society and the ability to regulate and balance production and consumption is crucial for any power system. More and more penetration of intermittent production in ... -
Aldring av PEX-isolasjon ved påtrykk av HVDC med overlagrede transienter
(Master thesis, 2012)Produksjon av elektrisk kraft fra offshore vindturbiner vil bli en stor utfordring i nær fremtid. Forskningsrådet har i den forbindelse tildelt SINTEF et femårig forskningsprosjekt på HVAC og HVDC undervannskabler for ... -
Analyse av konsekvenser ved reduksjon av turtemperaturnivået i fjernvarmesystemer
(Master thesis, 2011)Sammendrag Av mange grunner er det gunstig å operere med et lavt temperaturnivå i fjernvarmesystem. Dette reduserer tapene i nettet, og kan forbedre ytelsen til de varmeproduserende enhetene i fjernvarmesystemet. Det er ... -
Analysemodell for vedlikehold og reinvesteringer i kraftnett
(Master thesis, 2012)På grunn av den økende alderen på mye av distribusjonsnettet og den økte ressursbruken dette medfører, har nettselskap satt fokus på hvordan vedlikehold og reinvestering kan planlegges og utføres på en best mulig måte. ... -
Analysis of the Slow Floating in Grid Frequency of the Nordic Power System: Impact of Hydraulic System Characteristics
(Master thesis, 2012)This Master's Thesis work deals with the analysis of the observed slow floating in the grid frequency of the Nordic power system. Measurements indicate that the frequency of this floating or oscillation is around 11-17 ... -
Assessing the Environmental Costs and Benefits of Households Electricity Consumption Management
(Master thesis, 2011)In this study the environmental costs and benefits of smart metering technology systems installed in households in Norway have been assessed. Smart metering technology systems enable mechanisms to manage electricity ... -
Assessing the Life Cycle Environmental Impacts of Offshore Wind Power Generation and Power Transmission in the North Sea
(Master thesis, 2011)An integrated approach to climate and energy policy is required to meet the challenges associated with climate changes caused by anthropogenic emissions. At the same time, the demand for electricity is increasing. Wind ... -
Breakage and coalescence mechanisms in oil/water gravity separators
(Master thesis, 2011)The equipment used for bulk separation operations in offshore activities to produce oil and gas is an important part of the oil and gas production chain. The part of the separation where you separate water from oil is often ... -
Case Study Analysis of Running Distributed Generators in Island Mode: Effects on Reliability of Supply
(Master thesis, 2012)As a consequence of increased government efforts to reduce local Norwegian CO_2-emissions the development of small distributed generators have increased. This development is assumed to continue, but at an increasing ... -
Control of Offshore Passive Platform System Voltage and Frequency through Control of Onshore Back-to-Back Voltage Source Converters
(Master thesis, 2011)This thesis work shows implementation and testing of existing control strategies in a novel offshore passive platform configuration. Control of the platform voltage and frequency is done through control of a shore-based ... -
DC Supply in Buildings
(Master thesis, 2014)In this study, existing work, opportunities, standards and essential safety aspects on development of LVDC distribution systems have been considered. It can be summarised that the standard requirements for AC systems also ... -
Design of a Permanently Magnetized Hypocycloidal Reluctance Machine: Adapting the rolling rotor concept to generator and converter operation
(Master thesis, 2011)Investigations into the nature of the HRM in general, and a PMHRM-design in particular, were undertaken. Two separate simulation models, based on a magnetic equivalent circuit and FEM-model of the machine were built and ... -
Design of a Switch-Mode Power Electronic Converter for Teaching Laboratory
(Master thesis, 2012)A power electronic switch-mode three-leg converter is a flexible converter and hence very useful for practical teaching of several disciplines within electric power engineering. It can be used as a half-bridge, full-bridge ... -
Design of Roof PV Installation in Oslo
(Master thesis, 2012)This thesis is centered around the design of a grid-connected photovoltaic (PV) roof installation at a specific location in Oslo, Norway. The motivating factor in this study has been the growth of the solar industry globally, ... -
Development of new heat pump cloth drum dryer with CO2 as working fluid
(Master thesis, 2011)Since early the early 20th century the electrical tumble dryer became an appliance to dry clothes. During many years of improvements different configurations to solve issues on decreased drying time and more energy efficient ... -
Dynamic Control of Static Converters: Dynamic Control Methods for a Static Converter Model in PSCAD for a Traction Power System
(Master thesis, 2012)The Norwegian traction power system is a 15 kV single-phase 16 2/3 Hz power system. The traction power system is mainly supplied by rotary frequency converters that convert three-phase 50 Hz power from the utility grid to ... -
Dynamic Modeling of a Wind Turbine System
(Master thesis, 2011)The objective of this paper is to derive a simple dynamic model of a wind turbine system, with focus on mechanical conditions. The investigated system is assumed to be a 10 MW reference wind turbine, with variable speed ... -
Dynamisk simulering av systemløsninger for kuldeanlegg i supermarked
(Master thesis, 2011)Energibruk i supermarkeder er blant de høyeste innefor bygningssektoren i Norge. Norske supermarkeder har typisk et årlig energibehov på mellom 400 og 600 kWh/m^2 . Opp mot 50 % av dette totale energibehovet går til ... -
Dynamiske analyser av ny distribuert produksjon i Namsskogan
(Master thesis, 2011)Denne masteroppgaven omhandler en dynamisk stabilitetsanalyse av et område med mye planlagt distribuert småkraft, og er gitt av NTE Nett AS. Bakgrunnen for oppgaven er en endring av nettet i området, for å tilknytte ny ... -
Effect of Barriers in Air Insulated Rod-Plane Gaps
(Master thesis, 2012)The purpose of the experiments conducted in this Master's thesis is to predict and explain the change in breakdown voltage when insulating barriers are introduced in a rod-plane gap arrangement. The experiments have been ...