Browsing Institutt for teknisk kybernetikk by Title
Now showing items 1712-1731 of 3790
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Impact of power flow direction on the stability of VSC-HVDC seen from the impedance nyquist plot
(Journal article, 2017)The high-voltage dc (HVDC) systems are appearing more and more, and it is becoming a requirement that the HVDC voltage-source converters (VSCs) operate both as an inverter and a rectifier without changing the controls to ... -
Impact of Power Flow Direction on the Stability of VSC-HVDC Seen from the Impedances Nyquist Plot
(Journal article; Peer reviewed, 2016)The high-voltage dc (HVDC) systems are appearing more and more, and it is becoming a requirement that the HVDC voltage-source converters (VSCs) operate both as an inverter and a rectifier without changing the controls to ... -
Impact of sensing and infusion site dependent dynamics on insulin bolus based meal compensation
(Journal article; Peer reviewed, 2017)Meals are most challenging in the regulation of blood glucose levels (BGL) in diabetes mellitus type 1, whether it is automated, semi-automated or manually controlled. The common subcutaneous (SC) route for glucose sensing ... -
Impact of time varying angular frequency on the separation of instantaneous power components in stand-alone power systems
(Book, 2017)The paper addresses the impact that time varying angular frequencies observed in electrical signals can have on the calculation and separation of components from the instantaneous electric power signal. Instantaneous power ... -
Impact of Virtual Oscillator Control on the instantaneous properties of VSC output voltage in distorted island grids
(Chapter, 2019)This paper investigates the instantaneous properties of voltage and frequency of Voltage Source Converters (VSCs) when they are controlled by Virtual Oscillator Controllers (VOC) in a distorted island grid. Under time-averaged ... -
Impact on Efficiency of Inductive Battery Charging System by Sub-Resonant Frequency Control during Large Variations in Coupling Conditions
(Chapter, 2020)This paper presents a detailed analysis of power transfer efficiency for inductive battery charging systems designed for sub-resonant frequency control during large variations in coupling conditions. It is first demonstrated ... -
Impedance and Noise of Passive and Active Dry EEG Electrodes: A Review
(Peer reviewed; Journal article, 2020)Dry electrodes are a promising solution for prolonged EEG signal acquisition, whereas wet electrodes may lose their signal quality in the same situation and require skin preparation for set-up. Here, we review the impedance ... -
Impedance scanning with chirps for single-phase converters
(Chapter, 2022)Impedance scanning of single-phase AC-DC converters is challenging due to frequency couplings, which map one injection frequency to a multiple of output frequencies. Single-tone injections are often preferred over wideband ... -
Impedance-based Analysis of Interconnected Power Electronics Systems: Impedance Network Modeling and Comparative Studies of Stability Criteria
(Journal article; Peer reviewed, 2019)Impedance is an intuitive and effective way for dynamical representation of power electronics devices (e.g. VSCs). One of its strengths towards others is the natural association with circuits. However, impedances of VSCs ... -
Impedance-based Methods for Small-signal Analysis of Power Electronics Dominated Systems
(Doctoral theses at NTNU;2018:292, Doctoral thesis, 2018)Kraftsystemet er i endring - vi manglar metodar for å analysere det! Kraftnettet har tradisjonelt hatt ein struktur med store produksjonseiningar tilkopla høgspentnettet, og rollen til nettet har vore å føre denne ... -
Impedance-Based Stability Analysis of Systems with the Dominant Presence of Distributed Power Sources
(Chapter, 2022)In recently developed electric power systems, numerous distributed generators (DGs) are connected via power electronic devices. Because these devices can generate harmonics and nonlinear distortion, traditional model-based ... -
Impedance-Based Stability Evaluation of Virtual Synchronous Machine Implementations in Converter Controllers
(Chapter, 2018)This paper presents a stability evaluation of two Virtual Synchronous Machine (VSM) implementations in the control of Voltage Source Converters (VSCs): a current-controlled (CCVSM) and a voltage-controlled (VCVSM) version ... -
Implantable sensing technologies for monitoring of behavioural and physiological dynamics in farmed Atlantic salmon
(Doctoral theses at NTNU;2023:339, Doctoral thesis, 2023)Atlantic salmon aquaculture is a major food industry with 1.5 million tonnes produced for worldwide consumption in 2022. However, in Norway during the same year, current farming methods resulted in a 17.1% mortality rate ... -
Implementasjon og simulering av menneskets oksygenmetabolisme
(Master thesis, 2017)I denne oppgaven ble det undersøkt om modelleringsspråket CellML er egnet for å implementere den etablerte dynamiske modell av fysiologiske respirasjonen. Modellen ble også implementert i en annen plattform hvis det viste ... -
Implementasjon og testing av en åpen bussprotokoll for armproteser
(Master thesis, 2012)Proteseindustrien preges av inkompatible produkter og produsenter som utviklersine egne standarder. Samtidig er et internasjonalt forskningsmiljø(der NTNU er delaktig) i ferd med å utvikle en åpen bussprotokoll til bruk ... -
Implementasjon, test og analyse av avansert filter
(Master thesis, 2014)I denne masteroppgaven sees det på en avansert filter algoritme for fjerning av støy generert av pumper. Dette filteret, kalt PumPulsa, er utviklet av National Oilwell Varco og er beregnet for bruk under drilling operasjoner ... -
Implementation and Assessment of an Adaptive Tool Handle
(Master thesis, 2013)This master thesis was written during the spring and summer semester of 2013 at the Norwegian University of Technology and Science (NTNU). The main motivation for writing the thesis is to implement a specific feature on a ... -
Implementation and Comparison of Attitude Estimation Methods for Agricultural Robotics
(Journal article; Peer reviewed, 2013)The field of precision agriculture increasingly utilize and develop robotics for various applications, many of which are dependent on high accuracy localization and attitude estimation. Special attention has been put towards ... -
Implementation and Comparison of Nonlinear State of Charge Estimators using Equivalent Circuit Models for Two Lithium-Ion Battery Cell Chemistries
(Master thesis, 2023)Litium-ion-batterier blir omfattende brukt som en energilagringsløsning. De gir fordeler som lav vekt, høy energitetthet og holdbarhet, og kan være avgjørende for ̊a oppn ̊a kli- manøytralitet. Kontinuerlig optimalisering ... -
Implementation and evaluation of 16-bit thermal-inertial odometry using non-linear factor graphs
(Master thesis, 2022)Denne oppgaven presenterer adapsjonen og evalueringen av algoritmen Semi-direct Visual Odometry (SVO) til å bruke 16-biters termiske bilder, samt implementasjonen av en faktorgraf-basert backend. Varmekamera kan passivt ...