Browsing Institutt for elkraftteknikk by Title
Now showing items 2098-2117 of 2419
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A Stochastic MPEC Approach for Grid Tariff Design with Demand-Side Flexibility
(Peer reviewed; Journal article, 2020)As the end-users increasingly can provide fexibility to the power system, it is important to consider how this fexibility can be activated as a resource for the grid. Electricity network tarifs is one option that can be ... -
A stochastic MPEC approach for grid tariff design with demand‑side fexibility
(Peer reviewed; Journal article, 2023)As the end-users increasingly can provide flexibility to the power system, it is important to consider how this flexibility can be activated as a resource for the grid. Electricity network tariffs is one option that can ... -
A stochastic multi-objective model for energy efficiency and renewable resource planning in energy communities: A sustainably cost-effective trade-off
(Peer reviewed; Journal article, 2022)The integration of energy efficiency programs and renewable resources in energy communities (EC) incorporating smart microgrids might be the future development of sustainable cities. Cooperation among EC with high penetration ... -
Stochastic operation of energy constrained microgrids considering battery degradation
(Peer reviewed; Journal article, 2022)Power systems with high penetration of variable renewable generation are vulnerable to periods with low generation. An alternative to retain high dispatchable generation capacity is electric energy storage that enables ... -
A stochastic operational planning model for a zero emission building with emission compensation
(Peer reviewed; Journal article, 2021)The primary objective of Zero Emission Buildings (ZEBs) is to achieve net zero emission over the buildings’ lifetime. To achieve this goal, accurate cost-effective emission compensation is needed during the operational ... -
Stochastic Optimisation of Battery System Operation Strategy under different Utility Tariff Structures
(Master thesis, 2017)This master thesis develops a stochastic optimisation software for household grid-connected batteries combined with PV-systems. The objective of the optimisation is to operate the battery system in order to minimise the ... -
Stochastic Optimization of Microgrid Operation With Renewable Generation and Energy Storages
(Journal article; Peer reviewed, 2022)The operation of energy storage systems (ESSs) in power systems where variable renewable energy sources (VRESs) and ESSs must contribute to securing the supply, can be considered as an arbitrage against scarcity. The value ... -
Stochastic Optimization of Zero Emission Buildings
(Master thesis, 2018)Zero Emission Buildings (ZEBs) are energy efficient buildings that produce on-site renewable energy to compensate for their consumption. The concept of ZEBs is based the EU's Energy Performance of Buildings Directive (EPBD) ... -
Stochastic Rating of Storage Systems in Isolated Networks with Increasing Wave Energy Penetration
(Journal article; Peer reviewed, 2013) -
Stochastic Short-term Bidding Optimisation for Hydro Power Producers
(Doctoral thesis at NTNU;2015:176, Doctoral thesis, 2015)Hydropower bidding in physical short-term markets is a complex task. It requires careful modelling of sufficient technical details and good description of the market uncertainty. This thesis contributes to the field both ... -
Stor revisjon av Kvittingen kraftverk: Teknisk-økonomisk analyse av rehabilitering og modifikasjon
(Master thesis, 2012)Kvittingen kraftverk har vært i drift siden 1984 og det er behov for en større revisjon. BKK Produksjon, eier av kraftverket, ønsker å bringe kraftverket til en slik tilstand at videre drift kan sikres, med normalt ... -
Storskala pumpekraft
(Master thesis, 2014)Rapporten er ein økonomisk analyse av storskala pumpekraftverk i Noreg. Analysen er aktuell fordi ENTSO-E har spurt Noreg og Statnett SF om å kontrollere om det er aktuelt å bygge ut 14 000 MW pumpekraft i Noreg. I analysen ... -
Strategies for Smart Charging of Electric Vehicles
(Master thesis, 2014)The electrification of the transport sector is put on the agenda as an important means to reduce the greenhouse gas emissions in Norway, EU and other parts of the world. Chargeable vehicles have the potential to reduce the ... -
Strategies to Ensure Sufficient Inertia in the Norwegian Power System
(Master thesis, 2018)Having a stable system frequency is vital for safe operations of a power system. A small change in frequency is adjusted for by the system inertia. Inertia is the ability of the rotating masses of a synchronous machine to ... -
Streamer and surface charge dynamics in non-uniform air gaps with a dielectric barrier
(Journal article; Peer reviewed, 2019)Streamer behaviour near dielectric surfaces is an important characteristic of air-solid electrical insulation systems. Accurate predictions are important for dielectric design, but dynamic aspects such as surface charging ... -
Streamer Charging of Dielectric Barriers in Inhomogeneous Air Gaps - Measurements of Surface Charge Depositions
(Master thesis, 2017)The purpose of this thesis is to conduct experiments on a rod-plane gap, with and without a dielectric barrier. The gap is connected to an impulse generator, which stresses the gap with a lightning impulse triggering ... -
Streamer propagation along a profiled dielectric surface
(Peer reviewed; Journal article, 2020)We investigate the propagation of positive streamers along a profiled dielectric surface in air at atmospheric pressure. Results from experiments and two-dimensional planar low-temperature plasma fluid simulations are ... -
Streamer Propagation along Dielectric Surfaces
(Master thesis, 2019)Avhandlingen undersøker hvordan streamerutbredelse langs en dielektrisk overflate påvirkes av profilen på overflaten. Et eksperimentelt oppsett er utformet for å etterligne en 2D modell som også simuleres. Simuleringsprogramvaren ... -
Streamer Propagation along Profiled Insulator Surfaces under Positive Impulse Voltages
(Peer reviewed; Journal article, 2022)Controlling discharge growth on insulator surfaces is important in high voltage gaseous insulation systems. In this study, the effect of small-scale surface profiles on streamer discharge propagation is examined experimentally. ... -
Streamer Propagation in Rod-Plane Air Gaps with a Dielectric Barrier
(Chapter, 2016)High-voltage design optimization requires a fun- damental understanding of electrical breakdown mechanisms under different stress situations. The impulse withstand voltage is normally used as dimensioning criterion for ...