Institutt for elkraftteknikk
Nye registreringer
-
Interactive protocols for distributed energy resource management systems (DERMS)
(Journal article; Peer reviewed, 2020)This paper proposes a novel approach to designing technical and financial protocols needed to support the penetration of distributed energy resources (DERs). It first formulates a complex, hard-to-implement, centralized ... -
Characterization of a novel counter-rotating twin harmonic PM machine
(Chapter, 2023)Most machine topologies have two-ports, with one set of electrical connections and one mechanical shaft. Three-port machines having two rotors and mechanical shafts are able to drive two mechanical loads using one stator ... -
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 ... -
Accuracy Analysis of a Dynamic State Estimator with a Hardware in the Loop Approach
(IEEE Belgrade PowerTech;2023, Chapter, 2023)State estimation is critical for the monitoring and control of power systems. The conventional approach for state estimation is based on quasi static models for the power systems and as such neglects relevant dynamic ... -
Considerations on Combining Unfolding Inverters with Partial Power Regulators in Battery–Grid Interface Converters
(Peer reviewed; Journal article, 2024)The application of electrochemical cells as a source unit of electrical energy is rapidly growing—used in electric vehicles and other electric mobility devices, as well as in energy supply systems—as energy storage, often ... -
The influence of multidirectional leakage flux on transformer core losses
(Peer reviewed; Journal article, 2021)In a power transformer, the leakage flux enters the laminations of the iron core in different directions. Depending on the orientation of the leakage flux, it can add eddy current and hysteresis losses to the well-documented ... -
Influence of fast rise voltage and pressure on partial discharges in liquid embedded power electronics
(Peer reviewed; Journal article, 2015)Initiation of partial discharges at the highly stressed regions of an Insulated Gate Bipolar Transistor (IGBT) can lead to degradation of the insulation and eventual total breakdown of the system. In this work, an experimental ... -
Coordinated Decentralized Control of Dynamic Volt-Var Function in Oil and Gas Platform With Wind Power Generation
(Peer reviewed; Journal article, 2023)The integration of offshore wind energy power system is a solution to reduce carbon emissions in the oil and gas sector. However, the intermittent profile of wind power generation can bring challenges of voltage/frequency ... -
A Hybrid Reinforcement Learning and Tree Search Approach for Network Topology Control
(Master thesis, 2023)The growing demand for electricity, driven by widespread adoption of heat pumps, electric vehicles, and industrial electrification, strains power grids and introduces challenges for a reliable and secure supply amidst ... -
Partial Discharges in Narrow Gaps on Power Electronic Converter
(Chapter, 2014)The quest for power electronic converters to operate in a subsea pressurized environment that is completely filled with appropriate dielectric liquid brings about the need to study the insulation performance of liquid in ... -
Decarbonizing integrated chlor-alkali and vinyl chloride monomer production: Reducing the cost with industrial flexibility
(Peer reviewed; Journal article, 2023)Industrial demand response will become increasingly important in power grids with high shares of variable renewables, yet the existing knowledge on how the industrial electricity demand and flexibility will change with the ... -
Representation of uncertainty in market models for operational planning and forecasting in renewable power systems: a review
(Peer reviewed; Journal article, 2023)As the power system is becoming more weather-dependent and integrated to meet decarbonization targets, the level and severity of uncertainty increase and inevitably introduce higher risk of demand rationing or economic ... -
Earth Fault Location in Non-Radial Resonant Grounded Networks – Theory, analysis and methods
(Doctoral theses at NTNU;2024:59, Doctoral thesis, 2024)A common grounding scheme for medium voltage distribution networks and high voltage sub-transmission networks is the resonance grounding scheme. Resonant grounded networks have few interruptions and a high quality of supply, ... -
NTNU-SINTEF SolarNet: A solar irradiation monitoring network at high latitudes
(Peer reviewed; Journal article, 2023)This study presents a monitoring network for solar irradiation at high latitudes, called NTNU-SINTEF SolarNet. The network collects, with a time resolution ranging from seconds to hours, solar irradiance data, e.g. global ... -
Power Flow Control in a Modular Converter With Energy Storage
(Peer reviewed; Journal article, 2023)Using modularized power converters with scalable energy storage in particle accelerators can be further enhanced with controls that can be adapted to optimise different design targets, such as to minimise the front-end ... -
Stability Improvement of MMC-Based Multiterminal HVDC Grids
(Doctoral theses at NTNU;2024:7, Doctoral thesis, 2024)The 100% renewable European smart grid cannot be implemented without reliance on wind energy from the offshore wind farms in the North Sea. High-voltage direct current (HVDC) cables are generally used to transfer power ... -
Energy profiles and electricity flexibility potential in apartment buildings with electric vehicles – A Norwegian case study
(Journal article; Peer reviewed, 2024)Energy flexibility in buildings has the potential to reduce the grid burden of neighbourhoods, yet its practical implementation remains limited. This paper presents a data-based case study from Norway, examining the ... -
A Hybrid Current- and Voltage-Source Driver for Active Driving of Series-Connected SiC MOSFETs
(Peer reviewed; Journal article, 2024)The series-connection of silicon carbide (SiC) metal-oxide-semiconductor field-effect transistors ( mosfet s) is an attractive way of increasing the blocking voltage capability of a switch. However, due to inherent transient ... -
A Scalable DC/DC Converter Topology with Modularized Energy Storage for High Energy Physics Applications
(Journal article; Peer reviewed, 2023)This article presents the design and control of a high-power modular dc–dc converter for electromagnets used in high energy physics applications. The fundamental building modules, herein called bricks, can either be connected ... -
Scalable Regenerative Power Converters for Accelerator Magnets
(Doctoral theses at NTNU;2023:413, Doctoral thesis, 2023)Electromagnets are used at The European Centre for Nuclear Research (CERN) in high-energy physics experiments to direct the charged particle beams. They store significant amounts of energy in the magnetic fields and are ...