Blar i Institutt for elkraftteknikk på tittel
Viser treff 1308-1327 av 2419
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Limiting imbalance settlement costs from variable renewable energy sources in the Nordics: Internal balancing vs. balancing market participation
(Peer reviewed; Journal article, 2023)Due to the market gate closures in the Nordic energy markets, producers with variable renewable energy (VRE) assets, e.g., PV and wind power plants, must forecast their production prior to delivery, leaving room for ... -
Linking Global and Regional Energy Strategies (LinkS)
(SINTEF Energi. Rapport;, Research report, 2014)The LinkS project was designed to analyse how global long-term strategies can be used as guidelines for the development of energy supply and technology deployment in regional energy systems. In order to produce recommendations ... -
Livssyklusanalyse av offshore vindturbiner: Virkningen av å modellere gjennomsnittlige og væravhengige sviktrater
(Master thesis, 2011)Det er anslått 1 GW offshore vindkraftutbygging i Europa i løpet av 2011. Selv om teknologien har en eksponentiell utviklingskurve som stadig finner nye løsninger som gjør offshore vindkraft mer lønnsomt, er det forsatt ... -
Load Compensation by DSTATCOM with LCL-Filter by Comparing Different Resonance Damping Methods
(Chapter, 2020)This paper presents the design of a Distribution Static Compensator (DSTATCOM), interfacing the grid with an inductor-capacitor-inductor (LCL) filter, controlled by using dq0 current controller and sinusoidal pulse-width ... -
Load Current Interruption in Air for Medium Voltage Ratings
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:83, Doctoral thesis, 2014)Load break switches (LBSs) are common inside metal clad switchgear assemblies where space is a limiting factor. SF6 is usually used in this application due to its superior electrical characteristics, but is unfortunately ... -
Local Electric Field in Mass-Impregnated HVDC Cables
(Journal article; Peer reviewed, 2017)Detailed knowledge of the electric field in the insulation of mass-impregnated HVDC cables is important in order to understand their breakdown mechanisms and to improve their design. When calculating the local electric ... -
Local energy communities: Member benefits and grid impact under various regulatory frameworks
(Doctoral theses at NTNU;2024:231, Doctoral thesis, 2024)Due to global warming, there is a need to electrify fossil fuel processes and increase the amount of renewable energy. A way to include citizens in this green shift is by making it easier to invest in renewable technology ... -
Local Flexibility Market - TSO and DSO coordination
(Master thesis, 2022)Akkurat nå er det europeiske energisystemet i endring. Energien som produseres, kommer i større grad fra fornybar energi og desentralisert generasjon. Selv om dette har miljøfordeler, følger det også med en del tekniske ... -
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 ... -
Lokalisering av kortslutninger i høyspent distribusjonsnett
(Master thesis, 2017)I denne masteroppgaven er en foreslått metode for impedansbasert feillokalisering i høyspent distribusjonsnett presentert og testet. Metoden baserer seg på kortslutningsstrømmer som eneste måleverdi og tradisjonelle ... -
Long Step out Umbilicals for Oil and Gas Subsea Pump or Compressor Application - Starting of Permanent Magnet Machine
(Master thesis, 2012)Topside Variable Speed Drive (VSD) feeding a subsea load via a long cable is not a new technological challenge and many features in systems feeding asynchronous machines are well known. For a synchronous machine the situation ... -
Long Term Planning in Restructured power Systems: Dynamic Modelling of Investments on New Power Generation under Uncertainty
(Dr. ingeniøravhandling, 0809-103X; 2003:106, Doctoral thesis, 2003)This thesis describes the development of three decision support models for long-term investment planning in restructured power systems. The model concepts address the changing conditions for the electric power industry, ... -
Long-term hydrothermal Scheduling with aggregate and individual Reservoirs
(Master thesis, 2016)This thesis is a comparative analysis of two commensurable models used in long-term hydrothermal scheduling. The first model is the EMPS model, which is the most prevalent tool for long-term planning in the Norwegian power ... -
Long-term operational planning for flexible residential buildings with seasonal storage and capacity-based grid tariffs
(Peer reviewed; Journal article, 2024)When performing operation of the energy system in a building, it is difficult to accurately represent the uncertain long-term objectives in the short-term window, and the correlation between long-term objectives. This work ... -
Long-term Peak Power and Energy Forecasting in Norwegian Electricity Grids
(Master thesis, 2021)Elkraftbransjen opplever i disse tider store endringer og rask utvikling innenfor mange teknologiske områder. Innføringen av grønne teknologier og flere digitale løsninger legger grunnlag for nye muligheter for produsenter, ... -
Long-term Scheduling of Hydro Power Systems in Multiple Markets
(Master thesis, 2015)Hydropower scheduling models are vital for achieving an optimal utilization of water stored in reservoirs. The high percentage of flexible hydropower generation in Norway has led to scarce volumes in the reserve markets, ... -
A Long-term Strategy Framework for Flexible Energy Operation of Residential Buildings
(Doctoral theses at NTNU;2022:251, Doctoral thesis, 2022)Within the European power system, the electricity mix is experiencing more presence of variable power production due to the green shift. This shift causes increased need for flexibility measures to combat instability, which ... -
Long-term Value of Flexibility from Flexible Assets in Building Operation
(Peer reviewed; Journal article, 2022)In this work, we investigate how flexible assets within a residential building influence the long-term impact of operation. We use a measured-peak grid tariff (MPGT) that puts a cost on the highest single-hour peak import ... -
Longitudinal AC Breakdown Voltage of XLPE-XLPE Interfaces Considering Surface Roughness and Pressure
(Journal article; Peer reviewed, 2017)The interfacial breakdown between two dielectric surfaces has been reported to represent one of the principal causes of failure for power cable joints and connectors; thus, a better understanding of interfacial breakdown ...