Blar i Institutt for elkraftteknikk på tittel
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Application of Scaling Laws for Direct Drive Permanent Magnet Generators in Wind Turbines
(Master thesis, 2015)The object of this thesis is to investigate the use of scaling laws for Permanent Magnet Generators (PMGs). The product is a graphical tool named the Scaling Program, which is created in MATLAB GUIDE. The most applicable ... -
Application of signal processing and machine learning tools in fault detection of synchronous generators
(Master thesis, 2020)Deteksjon av feil i synkrongeneratorar med utprega polar er avgjerande for å sikre påliteleg produksjon i vasskraftverka der desse maskinene er lokalisert. Ei enkelt kortslutning mellom vindingar (ITSC på engelsk) i ... -
Application of Stochastic Dual Dynamic Programming to evaluate long-term price signals in short-term optimisation of energy use in buildings
(Master thesis, 2022)Med et stort potensiale for reduksjon av energibruk i bygninger i tillegg til muligheter for kostnadsreduksjon for forbrukere, er det et behov for ulike løsninger som promoterer energieffektivitet i bygninger. En slik ... -
Application of Virtual Synchronous Machines for Integration of Offshore Wind Turbines into the Power System of Offshore Oil and Gas Platforms
(Master thesis, 2016)This thesis addresses the technology known as "Virtual Synchronous Machines" and studies an application where it is used to integrate offshore wind turbines into the power systems of oil and gas platforms. The virtual ... -
An Approach for Optimal Pre-Conditioning of the Analytical Field Solution of Slotless PM Machines
(Peer reviewed; Journal article, 2021)Analytical modeling of electrical machines has the advantage of remarkable computational efficiency when compared with finite element analysis (FEA). This is especially important for slotless topologies, as they are well ... -
Arc Voltage Characteristics in Ultrahigh-Pressure Nitrogen Including Supercritical Region
(Journal article; Peer reviewed, 2017)A supercritical (SC) fluid is formed when both pressure and temperature of a fluid exceed the critical point, where distinct gas and liquid phases no longer exist. SC fluids demonstrate combined properties of gas and liquid, ... -
Arc Voltage Distribution Measurement in Tube Constricted Ultrahigh-Pressure Nitrogen Arc
(Chapter, 2020)This work contributes to the fundamental understanding of axial voltage distribution of the arc burning inside polytetrafluoroethylene (PTFE) tube at very high filling pressures of nitrogen. The arc peak current of 85 A ... -
Area Based Secondary Frequency Control in the Nordic Power System
(Master thesis, 2016)In order for a power system to function properly, it is necessary that the power production is equal to the power demand at all times. The next day's power balance is scheduled by the transmission system operators (TSO's) ... -
Arm Power Control of the Modular Multilevel Converter in Photovoltaic Applications
(Journal article; Peer reviewed, 2019)In this paper, a control method is proposed that allows the extraction of maximum power from each individual photovoltaic string connected to the Modular Multilevel Converter (MMC) and inject balanced power to the AC grid. ... -
Arm Voltage Estimation Method for Compensated Modulation of Modular Multilevel Converters
(Chapter, 2017)The Modular Multilevel Converter (MMC), being a complex system, requires a number of controllers to function properly. These range from low level switching pattern generation to high level control loops. Among these ... -
Artificial Intelligence-based Algorithm for Incipient Fault Diagnosis of Salient Pole Synchronous Generator using Multiple Sensor Fusion
(Master thesis, 2021)Vannkraft representerer omtrent 90\% av all energi som produseres i Norge. Med et økende behov for ren energi er bærekraften til vannkraftprodusenter et hovedanliggende. Det er viktig å oppdage begynnende feil i ... -
Artificial Neural Network Based Power Management in Microgrid
(Master thesis, 2022)Klimaforandringer, og det resulterende fokuset på fornybar energi forandrer stadig strukturen og karakteristikken til kraftsystem rundt om i verden. Implementeringen av mikronett fasiliterer for fornybar energi ved å ... -
Artificial Neural Network-Based Control for Grid-Connected Converter
(Master thesis, 2022)Ettersom andelen fornybare energikilder øker, må kontrollmetodene for nett-tilknyttede omformere forbedres for å sikre stabil og pålitelig drift. I forskning for forbedret omformerkontroll rettes det økende oppmerksomhet ... -
Assembly and Testing of Superconducting Field Winding
(Master thesis, 2016)Superconducting rotor windings are considered for large offshore wind turbines to reduce weight, size and cost. The European project INNWIND.EU utilize various national projects in different European countries to accelerate ... -
Assessing impacts on energy flows and CO2 emissions due to an alteration of interconnection topology between Norway and the UK
(Master thesis, 2020)Klimaforandringer utgjør i dag en av de mest gjennomgripende og truende krisene verden noen gang har stått overfor. Store $\textrm{CO}_\textrm{2}$-utslipp utgjør en betydelig utfordring for verdens bærekraftige utvikling ... -
Assessing incentives for multinational cooperation towards a North Sea Offshore Grid using allocation methods from coalitional game theory
(Journal article; Peer reviewed, 2018)The North Sea Offshore Grid (NSOG) has been recognized as a beneficial infrastructure project with respect to both economic and environmental concerns. Because of the absence of a supra-national planner, system optimal ... -
Assessing local flexibility resources in a Zero Emission Neighbourhood with focus on space heat demand and battery storage
(Master thesis, 2021)Ved å utnytte energifleksibilitet i bygninger kan man realisere verdier som redusert energibruk, redusert topplast, økt selvforbruk, eller tilby fleksibilitetstjenester til distribusjonsnettet. Denne masteroppgaven undersøker ... -
Assessing potential effects of electrolysis and batteries on variable renewable energy in the European power market
(Master thesis, 2021)"The European Green Deal" ble presentert av EU-kommisjonen i 2019 og leverte en strategi for hvordan man skal oppnå null netto utslipp av klimagasser innen 2050. Målet er å redusere global oppvarming til maksimalt 2 grader ... -
Assessing the benefits of exchanging spinning reserve capacity within the hydro-Dominated nordic market
(Peer reviewed; Journal article, 2021)This paper presents a hydrothermal scheduling toolchain suitable for detailed studies of procurement of spinning reserves in the hydro-dominated Nordic power system. The toolchain combines a long-term model to find the ... -
Assessing the economic benefits and power grid impacts of the power link island project
(Master thesis, 2017)Increasing penetration of renewable energy production bring new and tougher challenges for power systems and transmission system operators. This master s thesis includes three different case studies of a futuristic offshore ...