Blar i NTNU Open på tittel
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Harmonic analysis of collection grid in offshore wind installations
(Master thesis, 2018)This thesis work has presented a comprehensive harmonic analysis in megawatt offshore wind farms where the permanent magnet synchronous generator (PMSG) is used. Firstly, a detail configuration of the wind energy conversion ... -
Harmonic Distortion in Wind Farms with Modern Wind Power Plants
(Master thesis, 2014)In this master thesis, harmonic distortion related to the use of voltage source converters (VSC) in modern wind farms has been studied. A method that can cancel harmonic content, in parks with wind turbines using VSCs, has ... -
Harmonic Disturbance Rejection with Applications to the Control of Offshore Cranes
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:104, Doctoral thesis, 2009)The research proposed in this dissertation has been conducted from a theoretical as well as an applicative point of view. From a theoretical standpoint, the scope of the thesis falls within the field of the nonlinear output ... -
Harmonic filter design for large offshore wind power plants
(Master thesis, 2021)This thesis was written in collaboration with Vattenfall, with the objective of simulating, analysing, and identifying the main factors influencing the harmonic distortions in HVAC connected offshore wind power plants and, ... -
Harmonic Functions On Square Lattices: Uniqueness Sets and Growth Properties
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:194, Doctoral thesis, 2013) -
Harmonic Propagation and Production in Offshore Wind Farms
(Master thesis, 2018)Modern wind farms are increasing in size and complexity. As a result, increased power injected from large offshore wind farms is having a significant impact on the stability and power quality of the grid. Harmonics are a ... -
Harmonic Resonance Analysis of Offshore Wind Farm utilizing Type-IV Wind Turbines
(Master thesis, 2021)Utnyttelse av fornybare energikilder er av største betydning for å oppnå de bærekraftige utviklings- målene som er satt av FN. Av disse energikildene har havvind et betydelig potensiale. For å utnytte dette potensialet må ... -
Harmonic Resonance Mode Analysis and Application for Offshore Wind Power Plants
(Master thesis, 2015)This thesis is centred around a form of resonance analysis for power systems known as Harmonic Resonance Mode Analysis (HRMA). It is a form of eigenvalue analysis and has some parallels to the modal analysis commonly ... -
Harmonic Resonance Mode Analysis in dq Domain
(Journal article, 2017)Harmonic Resonance Mode Analysis (HRMA) is a technique developed to study harmonic resonance in a power system. Compared to conventional resonance analysis techniques, HRMA is a powerful method that can indicate the origin ... -
Harmonic Sharing in Microgrid Applications - Modeling, Developing and Evaluating a Microgrid Control System With Harmonic Sharing Capability
(Master thesis, 2018)The world is critically dependent on a transition from fossil fuels to renewable energy. Microgrids represent a promising systematic approach to increasing the reliability of the power system and solving the challenge of ... -
Harmonic State Space Modeling and Analysis of Modular Multilevel Converter
(Chapter, 2018)Modular multilevel converter (MMC) has complex internal dynamics, such as capacitor voltage fluctuations and harmonic circulating currents, which may have a big impact on the terminal behaviors of the MMC. Therefore, it ... -
Harmonic State-Space Based Small-Signal Impedance Modeling of a Modular Multilevel Converter With Consideration of Internal Harmonic Dynamics
(Journal article; Peer reviewed, 2019)The small-signal impedance modeling of a modular multilevel converter (MMC) is the key for analyzing resonance and stability of MMC-based power electronic systems. The MMC is a power converter with a multifrequency response ... -
Harmonic State-Space Based Small-Signal Impedance Modeling of Modular Multilevel Converter with Consideration of Internal Harmonic Dynamics
(Journal article; Peer reviewed, 2018)The small-signal impedance modeling of a modular multilevel converter (MMC) is the key for analyzing resonance and stability of MMC-based power electronic systems. The MMC is a power converter with a multifrequency response ... -
Harmonic Transfer-function-based Impedance Modelling of a Three-phase VSC for Asymmetric AC Grids Stability Analysis
(Journal article; Peer reviewed, 2019)Impedance modeling and stability analysis of a grid-VSC system under symmetric ac grids have been extensively discussed in the literature, where the dq domain impedances are usually adopted. As for asymmetric ac grids, ... -
Harmonic-Domain SISO Equivalent Impedance Modeling and Stability Analysis of a Single-Phase Grid-Connected VSC
(Peer reviewed; Journal article, 2020)This article presents a harmonic-domain single-input single-output (SISO) equivalent modeling technique for the impedance modeling and stability analysis of a single-phase grid-connected voltage-source converter (VSC). The ... -
Harmonic-Invariant Scaling Method for Power Electronic Converters in Power Hardware-in-the-Loop Test Beds
(Peer reviewed; Journal article, 2023)Power hardware-in-the-loop (PHIL) is an experimental technique that uses power amplifiers and real-time simulators for studying the dynamics of power electronic converters and electrical grids. Power hardware-in-the-loop ... -
Harmonising and linking biomedical and clinical data across disparate data archives to enable integrative cross-biobank research
(Journal article; Peer reviewed, 2015)A wealth of biospecimen samples are stored in modern globally distributed biobanks. Biomedical researchers worldwide need to be able to combine the available resources to improve the power of large-scale studies. A ... -
Harmoniske teknikker i "Part I - Opening" - En fyllestgjørende analyse av førstesatsen i «The Sweet Time Suite» fra Kenny Wheelers Music for Large & Small Ensembles
(Bachelor thesis, 2020)I denne oppgaven undersøker jeg «Part I – Opening» for å avdekke harmoniske teknikker anvendt i stykket. Jeg har baserer oppgaven på analyse av stykket samtidig som jeg trukker linjer til annen relevant musikk. Først har ... -
Harmonizing and linking conceptual models of geospatial information: Technologies for information modelling in GIS, ITS and BIM
(Doctoral theses at NTNU;2021:135, Doctoral thesis, 2021)Structured representations of phenomena from the real world in a digital geospatial environment are essential for developing, maintaining, and using the built and natural environment. In the real world, the phenomena relate ... -
Harnessing Bitcoin ASICs for Home Heating
(Bachelor thesis, 2023)Hensikten med studien er å se på hvordan strømregningen til husstanden i Trøndelag kan påvirkes av oppvarming ved bruk av Bitcoin ASICer. Datasettet inneholder ukentlige observasjoner av ASICers inntjening, strømpriser og ...