Institutt for elkraftteknikk: Nye registreringer
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Investigations on Secondary Voltage Control for Long-Term Reactive Power Management
(Chapter, 2023)Voltage and reactive power management is a crucial task for system operators worldwide, and particularly in Norway. While manual operations within regional control cen-ters were once the norm, a major shift is currently ... -
On Dynamic Characterization Evaluation and Control of Active Gate Drivers for SiC power MOSFETs
(Doctoral theses at NTNU;2023:388, Doctoral thesis, 2023)Silicon Carbide (SiC) powerMetal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) bear the potential of revolutionizing power electronic converters in regard to high efficiency, but also high power density converters ... -
Cyber-Security Assessment of Power System Digital Components in the Conditions of Hostilities
(Chapter, 2023)Emergencies, including hostilities, create additional cyber-physical security (CPS) challenges for the operation of digital power system components. This paper showcases the main problems faced by one of the components of ... -
Off-Grid Microgrid Design Consideration for Rural Electrification
(Master thesis, 2023)Denne masteroppgaven har gjort betydelige fremskritt i arbeidet med elektrifisering av rurale områder, spesielt med fokus på design og implementering av mikronett. Hovedbidraget er utviklingen av et allsidig Python-basert ... -
Design of a Power-Dense Aviation Motor With a Low-Loss Superconducting Slotted Armature
(Peer reviewed; Journal article, 2023)This article describes the design and analysis of a 2.5-MW, 5000-rpm electric motor with a slotted armature employing REBCO high-temperature superconductors (HTS). The alternating current and field in the armature induces ... -
A method for generating complete EV charging datasets and analysis of residential charging behaviour in a large Norwegian case study
(Peer reviewed; Journal article, 2023)Electric vehicles (EVs) are part of the solution to achieve global carbon emissions reduction targets, and the number of EVs is increasing worldwide. Increased demand for EV charging can challenge the grid capacity of power ... -
Assessment of the Distributed Ledger Technology for Energy Sector Industrial and Operational Applications Using the MITRE ATT&CK® ICS Matrix
(Peer reviewed; Journal article, 2023)In recent times, Distributed Ledger Technology (DLT) has gained significant attention for its potential application in the energy sector. Utilizing blockchain and DLT has demonstrated the ability to enhance the resilience ... -
Ageing of Technical Air and Technical Air with 7.5% C5-Fluoroketone by Free-Burning Arcs
(Journal article; Peer reviewed, 2023)This paper reports on the effect of ageing by free-burning arcs in 7.5% C5-fluoroketone (C5-FK) with 92.5% technical air in comparison to that in technical air (80% N2, 20% O2) at 1.3bar absolute pressure. The gases are ... -
Analysis of Demagnetization Faults in a Permanent Magnet Synchronous Machine utilizing the Stray Magnetic Field
(Master thesis, 2023)En permanent magnet synkronmaskin (PMSM) er en høytytende enhet på grunn av sin høye effektivitet og høye effekt til vekt forhold. Maskinen er imidlertid utsatt for skader som kan oppdages av en sensor som er montert på ... -
Correlation challenges for North Sea offshore wind power: a Norwegian case study
(Peer reviewed; Journal article, 2023)Offshore wind power projects are currently booming around the North Sea. However, there are inherent correlation challenges between wind farms in this area, which has implications for the optimal composition of locations ... -
Detection and diagnosis of field-joint fault and static eccentricity in synchronous generators through analysis of the stray magnetic field.
(Master thesis, 2023)Denne masteroppgaven undersøker feilsignaturene til deleskjøtfeil og statisk eksentrisitet i det ytre magnetfeltet til en synkrongenerator med utstikkende poler. Resultatene ble oppnådd ved finite element-modellering og ... -
Allocation of Spinning Reserves in Autonomous Grids Considering Frequency Stability Constraints and Short-Term Solar Power Variations
(Peer reviewed; Journal article, 2023)Low-inertia, isolated power systems face the problem of resiliency to active power variations. The integration of variable renewable energy sources, such as wind and solar photovoltaic, pushes the boundaries of this issue ... -
Thermal Analysis of ModHVDC Generator using Thermally Conductive Electrically Insulating Materials for Improved Heat Transfer
(Master thesis, 2023)Etablering av utaskjærs vindturbin parker presenterer seg som en mulig løsning til å forsyne trengt fornybar energi og samtidig bidra til det grønne skiftet. Bruk av høyspent DC mellom utaskjærs og land installasjoner er ... -
Intelligent Frequency Support for Offshore Wind
(Master thesis, 2023)Med den økende etterspørselen etter fornybare energikilder, blir vind energi mer og mer utnyttet i moderne energinett, og som et resultat kreves det at vindturbiner m˚a bidra til frekvensstøtte. Vind turbiner i en vindpark ... -
Design of a laboratory setup to investigate stability criteria of series-connected synchronous machines
(Master thesis, 2023)Det er utført en studie på styring av to synkrone maskiner koblet i serie. Vi skal også studere hvordan man kan redusere svingningene i udempede permanentmagnetmaskiner. Denne studien vil muliggjøre videreutvikling av en ... -
An XAI approach for COVID-19 detection using transfer learning with X-ray images
(Peer reviewed; Journal article, 2023)The coronavirus disease (COVID-19) has continued to cause severe challenges during this unprecedented time, affecting every part of daily life in terms of health, economics, and social development. There is an increasing ... -
Analysis and Testing the Influence of Circuit Parameters on Serial Arc Detection
(Master thesis, 2023)Norsk brannstatistikk indikerer at elektriske branner er den ledende årsaken til boligbranner. Så lenge forskriftene for elektriske lavspenningsinstallasjoner følges vil beskyttelsen mot branner forårsaket av overbelastning ... -
A Comprehensive Data Analysis of Electric Vehicle User Behaviors Toward Unlocking Vehicle-to-Grid Potential
(Journal article; Peer reviewed, 2023) -
Valuation of energy storage technologies in the Nordic power systems and markets context with growing wind power penetration
(Master thesis, 2023)Tross omfattende erfaring i Norden med å operere kraftsystemer med høy andel vindkraft, står vi fortsatt overfor tekniske utfordringer. Økt etterspørsel etter fleksible kraftsystemer og stabilitet i strømnettet har ... -
Stability Analysis of a New Class of Inner Loops for Voltage Regulations in DC/DC converters
(Master thesis, 2023)Energiproduksjonen fra sol- og vindkraft forventes å øke med 35% de neste syv årene. Ved bruk av kraftelektronikkteknologi vil disse fornybare energikildene integreres i det elektriske strømnettet. Denne masteroppgaven ...