Browsing Institutt for elkraftteknikk by Title
Now showing items 1432-1451 of 2565
-
Machine Learning for PV System Operational Fault Analysis: Literature Review
(Chapter, 2022)This review paper aims to discover the research gap and assess the feasibility of a holistic approach for photovoltaic (PV) system operational fault analysis using machine learning (ML) methods. The analysis includes the ... -
Machine Learning Methods for Anomaly Detection on Phasor Measurement Unit Data
(Master thesis, 2022)I en verden av økende digitalisering, kombinert med en økende etterspørsel etter strøm fra rene energikilder, vokser den cyber-fysiske interaksjonen i kraftsystemet stadig fortere. Denne veksten krever nye og bedre teknikker ... -
Machine Learning Methods for Anomaly Detection on Phasor Measurement Unit Data
(Master thesis, 2022)I en verden av økende digitalisering, kombinert med en økende etterspørsel etter strøm fra rene energikilder, vokser den cyber-fysiske interaksjonen i kraftsystemet stadig fortere. Denne veksten krever nye og bedre teknikker ... -
Magnetic Design for High Temperature, High Frequency SiC Power Electronics
(Master thesis, 2013)Power electronic components which can operate at high temperatures would benefit a large number of different applications such as in petroleum exploration, aviation and electrical vehicles. Silicon carbide semiconductors ... -
Magnetic Field Energy Harvesting in Railway
(Peer reviewed; Journal article, 2022)Magnetic field energy harvesting (MFEH) is a method by which a system can harness an ambient, alternating magnetic field in order to scavenge energy. Presented in this article is a novel application of the concept aimed ... -
Magnetic Forces and Vibration in Wind Power Generators: Analysis of Fractional-Slot Low-Speed PM Machines with Concentrated Windings
(Doctoral thesis at NTNU;2015:204, Doctoral thesis, 2015)The PhD research work presented in this thesis deals with radial magnetics forces and vibration in low-speed fractional-slot permanent magnet (PM) machines with concentrated windings. One of the applications of such ... -
Magnetic Measurements of the Higher-Order Corrector Magnets for the High-Luminosity Upgrade of the Large Hadron Collider at CERN
(Master thesis, 2022)Denne rapporten beskriver utviklingen av to systemer for magnetiske målinger av en samling korreksjonsmagneter som skal benyttes i High-Luminosity-oppgraderingen av the Large Hadron Collider ved Den Europeiske Organisasjonen ... -
Magnetic Modelling of Saturated IPMSMs, for Improved Torque Estimation and Accurate MTPA Control
(Master thesis, 2021)En utfordring for å oppnå optimal kontroll av synkronmotorer med nedgravde permanentmagneter, er å utvikle nøyaktige magnetiske modeller som beskriver forholdet mellom de påførte strømmene og de resulterende fluksforslygningene ... -
Maintaining Voltage Stability: An Analysis of Voltage Stability Indicators and Mitigating Actions
(Master thesis, 2012)The society's dependency of a reliable power supply is increasing, and properly identifying the distance to the stability limits of the power system and avoiding large disturbances is thus becoming increasingly important. ... -
Marine Current Turbines and Generator preference. A technology review
(Journal article; Peer reviewed, 2013)Marine current power is a significant energy resource yet to be exploited for electricity production. Several novel turbine technologies can be found on the market, and new ones emerge every year. This study found that the ... -
Marine renewable energy conversion: Grid and off-grid modeling, design and operation
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:214, Doctoral thesis, 2014)The global energy production from renewable sources is increasing, with high penetration of both wind and solar in key regions. Ocean Wave Energy is projected to contribute with an increasing share of the future power ... -
Market Power in Hydro-Thermal Systems with Marginal Cost Bidding
(Chapter, 2018)Traditionally, electricity markets have been designed with the intention of disabling producer side market power or prohibiting exercising it. Nonetheless it can be assumed that players participating in pool markets and ... -
Masteroppgave i vassdragsteknikk: Sammenlikning av små elvekraftverk og kraftverk med magasin
(Master thesis, 2012)Det siste tiåret har småkraftutbygginger økt kraftig. Små kraftverk har generelt blitt oppfattet som mindre kontroversielt enn større magasinkraftverk, men lite er gjort for å sammenligne disse to kraftverkstypene når det ... -
Material Flow Analysis and Life Cycle Costing for Water and Sludge Processing for Case Study of a Small Wastewater Treatment Plant in Poland
(Master thesis, 2014)The primary objective of this thesis has been to contribute to the understanding of the total process of water and sludge handling of small wastewater treatment plants (WWTPs) within the framework of sustainable performance ... -
Maximizing self-consumption rates and power quality towards two-stage evaluation for solar energy and shared energy storage empowered microgrids
(Peer reviewed; Journal article, 2022)Substantial penetration levels of intermittent and fluctuated renewable energy resources like PV can cause overcapacity and other operational challenges in the grid. Therefore, energy market actors are directed to the ... -
Maximum step out of AC cables to offshore installations
(Master thesis, 2018)The task of supplying an offshore installation with power is one that can be solved in several different ways. This thesis suggests a compensated AC subsea cable as the power from shore solution. At a length of 200km, the ... -
Maximum Torque Density Limit for Surface-Cooled SPM Machines
(Chapter, 2020)The aim of this work is to find the maximum torque density limit of a surface cooled SPM machine. In this paper, an analytical and a FEM-based model are developed under some theoretical conditions. Both models consist of ... -
Measured load profiles and heat use for “low energy buildings” with heat supply from district heating
(Journal article; Peer reviewed, 2017)In the development towards nearly zero energy buildings (nZEB) the load profiles for the heat demand and the heat use of the buildings are expected to be changed considerably compared to the situation today. This change ... -
Measurement and Calculation of Surface Tension of Oil, Gas and Glycol
(Master thesis, 2014)The importance of surface tension in separation design was evaluated in this report. Surface tension was found to have importance when calculating essentialdesign parameters, like droplet size, which is is fundamental in ... -
Measurements of Harmonic Distortion in Maritime Power Systems
(Master thesis, 2015)Harmonic voltage distortion is a problem becoming more and more common in maritime power systems because of the increasing use of power electronics; especially in relation to VFDs. To avoid the possibility of damage and ...