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norskFakultet for ingeniørvitenskap og teknologi
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Real-time application of grid-forming converters in smart distribution network
(Master thesis; Mastergradsoppgave, 2023-05-21)As the world faces the urgent need to reduce greenhouse gas emissions and combat climate change, renewable sources of energy have emerged as a viable solution. However, integrating renewable energy into existing power grids poses unique challenges. The availability of solar power depends on sunlight, wind power on wind speed, and this variability can cause instability and fluctuations in the grid, ... -
Robust visual inertial odometry for agile flight sensor fusion
(Master thesis; Mastergradsoppgave, 2024-07-05)This thesis presents the development and validation of a robust Visual-Inertial Odometry (VIO) system tailored for agile unmanned aerial vehicles (UAVs) operating in GPS-denied environments. These environments often challenge traditional navigation systems due to their inherent limitations in urban canyons, indoors, or densely forested areas. The study introduces a novel visual odometry (VO) algorithm ... -
Ytelsesevaluering av utvalgte minirenseanlegg i Narvik kommune
(Master thesis; Mastergradsoppgave, 2024-06-13)Denne masteroppgaven undersøker effektiviteten av minirenseanlegg i Narvik kommune for å fjerne forurensninger fra avløpsvann. Studien er basert på analyser av laboratorie- og feltdata for å evaluere anleggenes ytelse og deres potensielle innvirkning på folkehelsen og miljøet. Fokusområdene inkluderer sammenligning av laboratorie- og feltdata, påvirkningen av geografiske forhold på infiltrasjonsprosessen, ... -
Optimization of freeze-thaw durability testing for low-carbon concrete with VPI
(Master thesis; Mastergradsoppgave, 2024-06-04)Concrete, the most widely used building material, significantly impacts the environment, with cement production contributing up to 8% of global CO2 emissions. To address this, low-carbon concrete (LCC) mixes with supplementary cementitious materials (SCMs) have been developed. Fly ash (FA) is a well-established SCM, but with the decline of coal-fired power plants, alternatives like volcanic pozzolans ... -
Electric Load Forecasting of Residential Building
(Master thesis; Mastergradsoppgave, 2024-05-15)As global energy consumption continues to rise relevant energy sectors and communities must accurately forecast future electricity needs. This foresight is critical for effective planning, preserving the stability of the electricity grid, and avoiding blackouts. Accurate forecasting methodologies are critical in guiding decision-making processes correlated to resource allocation, infrastructure ... -
Virtual inertia to the AC Microgrid to improving the ROCOF and frequency Nadir in a Hybrid AC/DC Microgrid.
(Master thesis; Mastergradsoppgave, 2024-05-15)To move the global energy away from fossil fuels towards renewable energy leads toward a more complex grid, after experiencing a reduction of inertia when integrating large renewable energy sources (RES). With an increased pace of RES penetration into the grid and along a growing demand of electrical power, the challenge to maintain the system frequency as close as possible to the nominal range ... -
Application of Change Point Detection Algorithms in Adaptable Symbolic Music Segmentation Task Using MIDI Representation
(Master thesis; Mastergradsoppgave, 2024-05-15)This thesis studies the application of Change Point Detection (CPD) algorithms to the segmentation of symbolic music using MIDI representations. This study focuses on the use of two primary CPD algorithms, PELT and Binary Segmen- tation, to analyze and detect transitions within the Lakh MIDI dataset, which is known for its diversity in musical genres and styles. The main focus of the thesis is on ... -
Floating Offshore Wind Turbine Operations in Arctic Conditions
(Master thesis; Mastergradsoppgave, 2024-05-15)Offshore wind energy is receiving increased attention as a promising renewable energy source day by day, and the research in the field of designing the floating platforms to support floating offshore wind turbine (FOWT) has become very important. The evaluation of the dynamic stability of a FOWT in a challenging marine environment is the platform's capacity to maintain its initial position. These ... -
Solar Angle Optimizer
(Master thesis; Mastergradsoppgave, 2024-05-15)This thesis deals with the subject of a two axis rotatable solar panel rig where the design for the electrical components are proposed and the controller code from previous theses are further developed. The rig is to be used for research by UiT Narvik and the prerequisites for the installation of the rig are designed in this thesis. The electrical components for the rig proposed are an H-bridge, ... -
Optimization Conveyor Roller, LKAB
(Master thesis; Mastergradsoppgave, 2024-05-15)This master thesis presents a study on the structural optimization of conveyor idlers, focusing on the idler shell and shaft. The research aims to enhance the performance and efficiency of conveyor systems by reducing weight and improving stability of idler roller, beginning with a thorough load analysis to determine the static and dynamic forces exerted on idler. The study employs a combination of ... -
Design and Optimization of Conveyor Belt Rollers
(Master thesis; Mastergradsoppgave, 2024-05-15)Belt conveyor systems play a crucial role in the continuous transportation of bulk materials across varying distances. However, ensuring the reliability of these systems remains a significant concern for operators due to the potential financial losses incurred from system downtime, which not only impacts revenue from material conveying but also disrupts subsequent material processing facilities. The ... -
Electric snowmobile.
(Master thesis; Mastergradsoppgave, 2024-05-15)The main purpose of the project is to convert the snowmobile to electric and make it operational, which rule out focus on factors as ex. driving range, user interface for performance adjustment, heating for comfort, etc. For mounting the electric motor a suitable and feasible location and motor bracket to easy access the existing gearbox axel, and also in position to a cooling airflow through the ... -
Impact on Distribution Network Hosting Capacity using Machine Learning Based Reactive Power Support from PV Smart Inverters
(Master thesis; Mastergradsoppgave, 2024-05-15)Nowadays, due to growth of advanced technology and its impact on people lives, there is an increasing need for aligning and optimizing infrastructure with people needs. Harnessing renewable energy from different sources, store and eventually transmit and distributed it is an all-time challenge which nowadays by implementing and proper maintenance we lead to having higher efficiency to the point where ... -
Optimization of conveyor roller, LKAB
(Master thesis; Mastergradsoppgave, 2024-05-15)ABSTRACT The aim of this thesis is to optimize the performance, material, life and accessories for the conveyor rollers installed in longest conveyor section “15101 smst TR010” of LKAB Narvik, which is under the SILO with overall conveyor length of 620 meter. The report outlines the problems created by groundwater falling inside the tunnel, dust and spoilage of iron ore pallets outside the conveyor ... -
Wide Area Control and Improvement of Dynamical State of Power System
(Master thesis; Mastergradsoppgave, 2024-05-15)Some approaches to achieving full observability and controllability in power systems are explored in this thesis. The core structure of this work consists of observability and controllability, focusing on two key phases of optimization and control. In the first phase, system observability is addressed through optimal placement of Phasor Measurement Units (PMUs). The Connectivity Matrix Algorithm ... -
Study of Virtual Inertia and its impacts on Power Oscillations
(Master thesis; Mastergradsoppgave, 2024-05-15)This study explores the changing dynamics of power systems in the context of the global shift to renewable energy, focusing on inertia and its influence on frequency stability. Traditional stability mechanisms, centered around rotating masses like synchronous generators, face challenges due to the integration of renewables and frequency converters, resulting in a reduction in overall system inertia. ... -
Development of Digital Twin of the Herøysund Bridge using Finite Element Model Updating
(Master thesis; Mastergradsoppgave, 2024-05-15)The aging of civil infrastructure presents significant challenges in a global scale, necessitating innovative research techniques for effective solutions. Governments are increasingly compelled to allocate additional time and budgetary resources towards maintenance, repairs, or the construction of new structures to replace deteriorated or damaged ones. This allocation is essential to ensure ... -
Application of LLMs and Embeddings in Music Recommendation Systems
(Master thesis; Mastergradsoppgave, 2024-05-15)Music recommendation systems are crucial in guiding listeners to the extensive selection of music accessible today. However, these recommendation algorithms frequently encounter challenges such as the cold start problem, including less popular tracks, and comprehending the semantic substance of music. This thesis investigates the incorporation of Large Language Models (LLMs) and embeddings to tackle ... -
Investigation of moisture transport in branch wood of Norway Spruce using NMR
(Master thesis; Mastergradsoppgave, 2024-05-15)Two samples from a specimen of a Norway spruce (Picea abies (L.) Karst.) branch was prepared. One opposite wood (OW) sample and one compression wood (CW) sample. Several tests using nuclear magnetic resonance were performed on these specimens to study the motion of moisture through the branch wood. The T2-experiment shows that the fibre saturation point is at 20% moisture content (MC) for OW and 25% ... -
Enhancing Efficiency and Safety in Iron Ore Mining: Innovative Solutions for Water Management in Conveyor Systems
(Master thesis; Mastergradsoppgave, 2024-05-15)This thesis report explores the critical challenge of water flooding in conveyor belt systems within the iron ore mining sector, with a focus on LKAB, a leading Swedish mining company. The study begins by outlining the significance of addressing water accumulation issues that compromise operational efficiency and safety in mining environments. Through an extensive literature review, the research ...
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