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Next Generation High Voltage Subsea Transmission Cables: Influence of electric field, NaCl impurities and thermal cycling rate on insulation lifetime.
(Master thesis, 2019)For å kunne utvikle dynamiske undervannskabler med en konkurransedyktig levetid, behøves det kunnskap om hvordan vanntrær forplanter seg i materialet. Det har blitt gjennomført en litterær vurdering av faktorene som påvirker ... -
Next-Generation Cryo-Electric Hydrogen-Powered Aviation: A Disruptive Superconducting Propulsion System Cooled by Onboard Cryogenic Fuels
(Journal article; Peer reviewed, 2022)The idea of hydrogen (H2)- powered airplanes has recently attracted a revitalized push in the aviation sector to combat carbon dioxide (CO2) emissions. However, to also reduce, or even eliminate, non-CO2 emissions and con- ... -
The Noise Effects on Signal Processors Used for Fault Detection Purpose
(Chapter, 2020)Signal Processing plays a crucial role in addressing failures in electrical machines. Experimental data are never perfect due to the intrusion of undesirable fluctuations unrelated to the investigated phenomenon, so-called ... -
Non-intrusive identification of hydro power plants' dynamics using control system measurements
(Peer reviewed; Journal article, 2020)In this paper we propose two non-intrusive methods for identifying hydro power plant dynamics using standard system identification techniques. The purpose of the tests is to obtain transfer functions relevant for the ... -
Non-linear charge-based battery storage optimization model with bi-variate cubic spline constraints
(Peer reviewed; Journal article, 2020)Variable renewable generation demands increasing amount of flexible resources to balance the electric power system, and batteries stand out as a promising alternative. Battery models for optimization typically represent ... -
Non-normal-Mode Onset of Convection in a Vertical Porous Cylinder
(Peer reviewed; Journal article, 2020)This is the first study reporting a full three-dimensional (3D) non-normal-mode onset of convection in a porous medium. In this paper, the onset of thermal convection in a vertical porous cylinder is investigated theoretically. ... -
Non-Synchronous Generation Impact on Frequency Response - A Case from Albania
(Chapter, 2020)Albanian electric power generation has been almost totally dependent on hydropower since its system inception. Within the past decade, although modest, there has been some share of power produced from Renewable Energy ... -
Nonconvex Medium-Term Hydropower Scheduling by Stochastic Dual Dynamic Integer Programming
(Journal article; Peer reviewed, 2018)Hydropower producers rely on stochastic optimization when scheduling their resources over long periods of time. Due to its computational complexity, the optimization problem is normally cast as a stochastic linear program. ... -
Nonlinear Control Structure of Grid Connected Modular Multilevel Converters
(Journal article; Peer reviewed, 2017)This paper implements nonlinear control structure based on Adaptive Fuzzy Sliding Mode (AFSM) Current Control and Unscented Kalman Filter (UKF) to estimate the capacitor voltages from the measurement of arm currents of ... -
Nordsjøen som plattform for grønn omstilling
(Research report, 2021) -
North Sea offshore network and energy storage for large scale integration of renewables
(Journal article; Peer reviewed, 2014)This review investigates different aspects of the realization of a North Sea offshore grid. The North Sea region has several characteristics that make large-scale integration of renewable energy sources attractive, such ... -
Norway as a Battery for the Future European Power System – Comparison of Two Different Methodological Approaches
(Chapter, 2019)This paper compares the simulation results for two stochastic optimization power market models. EMPS uses aggregation and heuristics to calculate the optimal dispatch. SOVN simulates the operation of the power system in ... -
Norway as a Battery for the Future European Power System—Impacts on the Hydropower System
(Journal article; Peer reviewed, 2017)Future power production in Europe is expected to include large shares of variable wind and solar power production. Norway, with approximately half of the hydropower reservoir capacity in Europe, can contribute to balance ... -
Norway as Swing Producer
(Master thesis, 2011)This paper looks closer at using Norwegian hydropower for swing production towards Continental Europe. On-going discussions suggest that Norwegian resources could be utilised to a larger extent, and thereby enable further ... -
Norwegian Day-ahead Electricity Price Forecasting using AI Models
(Master thesis, 2022)Omleggingen fra de regulerte, lokale monopolkraftmarkedene i Norge til liberaliseringen av krafthandelen som følge av energiloven i 1991, har skapt konkurransekraft blant markedsaktørene. I tillegg kommer den nylige ... -
Norwegian Energy Scenarios
(Master thesis, 2017)The penetration of renewable energy sources is increasing in the European power system. Their interaction with the power market is fundamentally different from that of traditional thermal power production. This thesis aims ... -
Norwegian hourly residential electricity demand data with consumer characteristics during the European energy crisis
(Peer reviewed; Journal article, 2023)This dataset was collected to understand how Norwegian households responded to the electricity price shock due to the European energy crisis. It consists of consumer characteristics and their self-reported responses to the ... -
Norwegian Hydropower and large scale Wind Generation in the North Sea
(Master thesis, 2011)The addressed issue for this report is the making of a model, which represents the power system in Great Britain. This model is connected to an already existing model of Northern Europe in order to study how the present ... -
Norwegian pumped hydro for providing peak power in a low-carbon European power market - Cost comparison against OCGT and CCGT
(International Conference on the European Energy Market;, Chapter, 2015)This paper presents an analysis of the cost of providing peak generation from new OCGT, CCGT and Norwegian pumped hydro plants in a European power system with high penetration of wind and solar power. A method for calculation ...