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Design of a Switch-Mode Power Electronic Converter for Teaching Laboratory
(Master thesis, 2012)A power electronic switch-mode three-leg converter is a flexible converter and hence very useful for practical teaching of several disciplines within electric power engineering. It can be used as a half-bridge, full-bridge ... -
Design of Dual Purpose No-Voltage Combined Windings for Bearingless Motors
(Journal article; Peer reviewed, 2017)A winding design approach is proposed to create a single motor winding, which is able to produce both radial force and torque. This approach can be used to design new bearingless motors, as well as to transform conventional ... -
Design of Fault Tolerant Power Converters
(Master thesis, 2011)Abstract In recent years, multilevel converters have seen an increasing popularity in medium and high voltage applications. Reliability and fault tolerant are some of the significant aspects of multilevel converters. The ... -
Design of Large Permanent Magnetized Synchronous Electric Machines: Low Speed, High Torque Machiines - Gererator for Diriect Driven Wind Turbine- Motor for Rim Driven Thruster
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:25, Doctoral thesis, 2011)This work presents the design of two prototype permanent magnetized electric machines for two different applications where large permanent magnet machines might be used. Existing technology have been used as the fundament ... -
Design of Large PM-Generators for Wind Power Applications
(Master thesis, 2011)This report describes generator design for wind power applications. It explains a modern design procedure which uses both analytical and numerical analysis. The numerical analysis uses finite element analysis and in this ... -
Design of Roof PV Installation in Oslo
(Master thesis, 2012)This thesis is centered around the design of a grid-connected photovoltaic (PV) roof installation at a specific location in Oslo, Norway. The motivating factor in this study has been the growth of the solar industry globally, ... -
Design of Superconducting Propulsion Motor for Hydrogen-Powered Zero-Emission Aviation
(Master thesis, 2023)Dette master prosjektet presenterer et ferdigstilt design av en mega-watt skalert superledende slotless PMSM for luftfartsapplikasjoner. Ved bruk av elektromagnetisk analyse i COMSOL ble optimale geometriske parametere ... -
Design og dimensjonering av elektrisk fremdriftssystem for helikoptre og droner
(Bachelor thesis, 2020)Den siste tiden har det blitt gjort store fremskritt innen energilagringssystemer for elektriske fremdriftssystemer på fly. Derfor er det også naturlig å tenke på en elektrisk løsning for helikopter. I denne oppgaven er ... -
Design og uttesting av smarthus
(Master thesis, 2016)Det skal etableres et smarthuslaboratorium på NTNU i forbindelse med et større smartgridprosjekt. Laboratoriet skal legge til rette for uttesting av styringssystemer for smarthus, integrasjon av smarthus i morgendagens ... -
Design Optimization of Hydropower Generators
(Master thesis, 2016)For education and research purposes, a design calculation program for hydropower generators has been made. The user can change design parameters to optimize the generator. However, manual optimization is a slow and tedious ... -
Design optimization of ironless multi-stage axial-flux permanent magnet generators for offshore wind turbines
(Journal article; Peer reviewed, 2017)Direct-driven ironless-stator machines have been reported to have low requirements on the strength of the supporting structures. This feature is attractive for offshore wind turbines, where lightweight generators are ... -
DESIGN, OPERATION AND CONTROL OF SERIES-CONNECTED POWER CONVERTERS FOR OFFSHORE WIND PARKS
(Doctoral Theses at NTNU, 1503-8181, Doctoral thesis, 2012)OFFSHORE wind farms need to develop technologies that fulfill three main objectives:Efficiency, power density and reliability. The purpose of this thesisis to study an HVDC transmission system based on series connection ... -
Design, Optimization and Analysis of a Single Rotor Magnetic Gear Electric Machine
(Master thesis, 2017)Magnetic gears have recently become serious contenders for mechanical gears in low speed applications that require high torque. A magnetic gear features benefits such as inherent overload protection and low maintenance, ... -
Designing climate policy mixes: Analytical and energy system modeling approaches
(Peer reviewed; Journal article, 2023)A matter of debate in climate policy is whether lawmakers should rely on carbon pricing or regulations, such as low-carbon standards, to reach emission reduction goals. Past research showed that pricing is more cost-effective. ... -
Designing grid tariffs and local electricity markets for peak demand reduction in distribution grids
(Doctoral theses at NTNU;2022:394, Doctoral thesis, 2022)The decarbonization of the power system is envisioned to be a key part of European Union’s goal to be climate neutral by 2050. By shifting from large fossil fuel generation to climate-friendly renewable energy sources, ... -
Detailed Magnetic Field Monitoring of Short Circuit Defects of Excitation Winding in Hydro-generator
(Chapter, 2020)The excitation windings of the synchronous generators are generally reliable. However, electrical, mechanical, and thermal stresses that the machine is exposed to during its operation leads to the inter-turn and ground ... -
Detecting instant of multiple faults on the transmission line and its types using time-frequency analysis
(Journal article; Peer reviewed, 2019)In a complex interconnected network, due to dynamic interaction between the AC networks, at the time of multiple occurrences of faults, the successful relay operation is threatened. For security and reliability of power ... -
Detecting Unavailable Balancing Energy Bids Due to Risk of Internal Congestions
(Chapter, 2018)The development of common European balancing platforms is part of the pan-European integration of internal electricity markets decided by ENTSO-E. The implementation aims to accumulate resources and to maximize social ... -
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 ... -
Detection and Protection strategy for a modular HVDC generator
(Master thesis, 2021)Ettersom en økt del av verdens elektrisitetsproduksjon produseres av fornybare energikilder (RES), et nytt alternativ for kraftdistribusjon over lange avstander kalt supernett er foreslått av EU. Disse er basert på likestrøm ...