Browsing Institutt for elkraftteknikk by Title
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HVDC Transmission Using a Bipolar Configuration Composed of an LCC and MMC: Operating Characteristics of Skagerrak 3 and Skagerrak 4
(Master thesis, 2014)The operational properties of a bipolar configuration composed of a Line-Commutated Converter (LCC) and a Voltage Source Converter (VSC) in a multilevel topology (MMC) are investigated. Simulation models are made in the ... -
Hvordan kan vi utnytte dagens solcelleteknologi for å skape den beste økonomiske løsningen for et kjøle- og fryselager?
(Bachelor thesis, 2021)Denne bachelorrapporten undersøker om det er mulig å utnytte dagens solcelleteknologi for å skape en økonomisk gunstig løsning for et kjøle- og fryselager. Tilgangen på timesoppløst forbruksdata har gjort det mulig å ... -
Hvordan vil endringer i forbruksmønsteret påvirke fremtidige nettinvesteringer
(Bachelor thesis, 2020)I dette prosjektet blir AMS data analysert for å danne et bilde av strømnettets forløp over 2019, for 8 nettstasjoner i et lokalt nett. Det blir analysert reelt effektuttak og samtidighetsfaktorer, samt sannsynlige ... -
Hybrid AC/DC-OPF ADMM model for TSO coordination with multiple DSOs in Flexibility Market
(Peer reviewed; Journal article, 2022)Unlocking potential from flexibility assets is an effective way to address power grid challenges. Proper coordination between transmission and distribution system operators (TSO and DSOs) is key to achieving this goal. ... -
Hybrid BESS/STATCOM for Improved Power Quality on Oil & Gas Platforms
(Master thesis, 2023)Kraftsystemet til offshore olje- og gassplattformer beskrives ofte som et svakt, uavhengig AC-system. Et betydelig problem knyttet til svake nett er den kraftige økningen i reaktiv effektbehov og p˚afølgende fall i ... -
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 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 ... -
Hybrid HVDC Transmission for Large-Scale Offshore Wind Integration - Model-Based Control Design and Performance Assessment
(Master thesis, 2017)Today, the world faces major challenges regarding our global environment. The most pressing challenge is global warming, and the scientific community is well aware of the catastrophic consequences an increase in global ... -
A hybrid method for day-ahead photovoltaic power forecasting based on generative adversarial network combined with convolutional autoencoder
(Peer reviewed; Journal article, 2022)Photovoltaic (PV) generation has high impact on the decarbonization pathways of power systems. Accuracy of day-ahead PV power forecasting has become crucial in the operation and control of power system with high PV ... -
Hybrid q-Rung Orthopair Fuzzy Sets Based CoCoSo Model for Floating Offshore Wind Farm Site Selection in Norway
(Journal article; Peer reviewed, 2022)Unlocking offshore wind farms' high energy generation potential requires a comprehensive multi-disciplinary analysis that consists of intensive technical, economic, logistical, and environmental investigations. Offshore ... -
Hydraulic design of a Francis turbine that will be influenced by sediment erosion
(Master thesis, 2014)High amount of sediments in the Himalayas are at present a large problem for power companies in Nepal, preventing them of utilizing the large amount of hydro power available in the area. In the Jhimruk power plant the ... -
Hydraulisk testing av materialer for transformatorer
(Bachelor thesis, 2024)Kraftnettet utsettes i dag for flere og hyppigere lastvariasjoner enn tidligere. Dette kommer blant annet som følge av den pågående elektrifiseringen av transportsektoren og økende andel uregulerbar kraft i energimarkedet. ... -
Hydro Power Reservoir Aggregation via Genetic Algorithms
(Journal article; Peer reviewed, 2017)Electrical power systems with a high share of hydro power in their generation portfolio tend to display distinct behavior. Low generation cost and the possibility of peak shaving create a high amount of flexibility. However, ... -
Hydro power scheduling in multi-owner river systems
(Master thesis, 2010)1. Initial problem formulation 2. Iterative approach building for one reservoir 3. Testing for two cascaded reservoirs 4. Testing for four cascaded reservoirs 5. Further work -
Hydro Turbine and Governor Modelling: Electric - Hydraulic Interaction
(Master thesis, 2010)This Master s Thesis work deals with the development of improved hydro turbine models for the evaluation of a hydraulic power generating system performance in response to small disturbances in power system analysis tool. ... -
Hydro-Thermal Multi-Market Optimization
(Master thesis, 2019)Fundamental optimering av kraftsystemet er essensielt for å anskaffe korrekt beslutningsstøtte for investeringer og for optimal drift av kraftsystemet. Med en økt andel av ukontrollerbare energikilder og utfasing av kull ... -
Hydro-thermal power market equilibrium with price-making hydropower producers
(Journal article; Peer reviewed, 2018)This paper formulates an electricity market dominated by price-making hydro-thermal generation. Generation companies optimize their unit commitment, scheduling and bidding decisions simultaneously as a Mixed Integer ... -
Hydrogen Electric Airplanes: A Disruptive Technological Path to Clean Up the Aviation Sector
(Peer reviewed; Journal article, 2021)Recently, the COVID-19 pandemic has been a painful reminder of the vulnerability of the aerospace industry. It is currently facing challenges with costs, expensive fuels, and carbon emissions. In recovering the industry, ... -
Hydrogen in the Distribution Grid for Capacity Planning and Flexibility
(Master thesis, 2024)Kraftsystemet er i eit paradigmeskifte der variable fornybare energikjelder (VRES) blir gradvis integrert. Integreringa av desse kjeldene fører til utfordringar for dei operative aspektane ved nettet, noko som fører til ... -
Hydrogen Production from Wind and Hydro Power in Constrained Transmission Grids
(Doctoral theses at NTNU;2022:54, Doctoral thesis, 2022)Hydrogen (H2) production from variable renewable energy (VRE) sources can be an important technology for reducing CO2 emissions. Integrating electrolytic H2 production into the electricity system can contribute to this ...