Viser treff 1-20 av 89

    • Coordinated Controller to Mitigate Voltage Violation in Smart Distribution Network 

      Redoy, Md. Daudul Islam Bhuiyan (Master thesis, 2025)
      This thesis addresses the increasing challenges posedby highphotovoltaic(PV) penetration in distribution networks, specifically focusing on voltage stability issues caused by extreme seasonal generation variations. Current voltage con- trol approaches fail to effectively manage these fluctuations- tests on the IEEE 37-bus system showed summer solar production is over 5 times higher than in winter. ...
    • Landing a Multirotor on a Vessel at Sea 

      Tøllefsen, Andreas (Master thesis, 2025)
      Operating unmanned aircraft from vessels in the open ocean is demanding both on the personnel involved in the operation and on the aircraft. The work presented here aims to alleviate the workload on pilots and other personnel by introducing a higher level of automation in the landing phase of a flight. This will help create value for all parts of the supply chain, from product developers through ...
    • Novel Guidance Schemes For GT Missions Master Thesis 

      Andersen, Joakim (Master thesis, 2025)
      Ensuring the long-term stability of a gravity-tractor spacecraft near a binary asteroid demands guidance laws that can withstand the nonlinear, multi-body dynamics and uncertainties of space. We derive and compare three controllers the PD+, the LQR, and a High-Order Sliding-Mode Controller (HOSMC) with super-twisting, for both a two-body approximation and the full circular restricted three-body ...
    • Solenergi i Longyearbyen 

      Nystad, Jonas (Master thesis; Mastergradsoppgave, 2020-02-01)
      Denne rapporten presenterer og drøfter implementering av større mengder solkraft i energisystemet i Longyearbyen. Solkraft er ikke det første man tenker på når man nevner Svalbard, men som absolutt viser seg å ha et potensial så langt nord. Mye på grunn av midnattssolen og kaldt klima. Det eksisterer allerede noen installasjoner av solkraft i og rundt Longyearbyen. Disse har blitt kartlagt og ...
    • Voltage Control In Smart Distribution Network With Limited Reactive Power Capacity Of Smart Inverter Using Machine Learning 

      Haider, Syed Muhammad Aizaz (Master thesis; Mastergradsoppgave, 2023-05-20)
      It is very important for consumers to have the operating voltages within the specified limit. Sometimes, this is not possible to provide by the grid operators although grid operators invest heavily in voltage regulating devices. With the integration of variable renewable energy systems in the grid, it has become more challenging for the grid companies to regulate them to provide stable voltages and ...
    • Flexibility and their role in capacity and congestion management 

      Ibrar, Mohammad (Master thesis; Mastergradsoppgave, 2024-05-15)
      The energy market transition from a regulated power market to a deregulated power market ensures a more liberalized approach toward energy trade as it allows small and medium independent power trading entities to share the market. This provides a competitive environment in the energy market, and market forces also come into action to ensure the balance of the market. With all these advantages, ...
    • Optimal attitude control and maneuver design for space debris detection in low earth orbit performed by a CubeSat 

      Aldana Afanador, Andres Felipe (Master thesis; Mastergradsoppgave, 2024-05-15)
      Space debris has become an important topic, and several national and international space agencies are currently studying space debris detection and removal to increase the safety of space missions. UiT the Arctic University of Norway in Narvik is aiming to develop a 2U CubeSat that can perform in-situ detection of debris with the projects UNICube and QBDebris. The mission target is to detect mm-sized ...
    • Real-time application of grid-forming converters in smart distribution network 

      Leirvang, Jon-Kristian (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 

      Ferkic, Edvin (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 ...
    • Electric Load Forecasting of Residential Building 

      Lodhi, Mubashir Nasir (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. 

      Shrestha Newar, Dan Bahadur (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 ...
    • Solar Angle Optimizer 

      Åkerman, Alexander (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, ...
    • Electric snowmobile. 

      Rønneseth, Johnny (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 

      Safavi, Sepehr (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 ...
    • Wide Area Control and Improvement of Dynamical State of Power System 

      Nazari, Afshin (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 ...
    • Trajectory Tracking with Collision Avoidance for Large Vessel Draft Surveys 

      Saleheen, A B M (Master thesis; Mastergradsoppgave, 2024-05-15)
      This thesis explores the innovative use of unmanned aerial vehicles to conduct draft surveys of large maritime vessels. This process is critical for determining vessel load through water displacement measurements. At the port of Narvik, a crew typically performs this task manually, where LKAB’s iron ore cargo vessels are surveyed while docked. The usual method requires going around the ship in ...
    • DC-DC Converter For Fuel Cell (Control Strategy, Voltage Curve, Optimization, Converter Type). Current-fed Full-bridge Isolated DC-DC Converter With An Active Clamp Circuit For Fuel Cell Application 

      Shojaee, Sanaz (Master thesis; Mastergradsoppgave, 2022-05-15)
      This thesis investigates one of the most favorable converters for integrating fuel cells into a DC microgrid. A current-fed full-bridge isolated DC-DC converter has advantages such as high voltage conversion ratio, low switches’ losses, and low input current ripple which make it one of the best choices for Fuel cells (FC). This converter transfer power to the load through the leakage inductance which ...
    • Current source Inverter for fuel cell Application 

      Hamad, Zainab (Master thesis; Mastergradsoppgave, 2023-08-14)
      In recent years, the scientific renaissance has turned towards alternative energy. Scientific research and dissertations of all degrees, doctoral, Master, and even bachelor's degrees include. Green energy and alternative solution to protect the environment from increasing pollution. Different inverters have been used to increase the potential for power resulting from devices that do not have the ...
    • Investigation of ballast water conditions using remote sensing. Suspended Particulate Matter Characterization in Emden Sea Port 

      Taña i Viñeta, Pau (Master thesis; Mastergradsoppgave, 2023-05-22)
      This thesis investigates the use of remote sensing techniques to study the conditions of ballast water in the northwestern port of Emden, Germany. Sentinel-2 data of the seaport has been collected and used in order to retrieve the suspended particulate matter (SPM), evaluating its distribution and checking for any time or spatial periodicity over the past 5 years. The aim of the study is to provide ...
    • Optimization of industrial power grid of Narvik 

      Khan, Md Nafis Ul Hoq (Master thesis; Mastergradsoppgave, 2023-05-22)
      The objective of this study is to review a comprehensive plan for optimization framework for the industrial power grid. Few factors considered such as power generation, transmission, distribution, energy storage solutions, cost development. The aim targets an overview of planning and optimization for a hydrogen production plant in Narvik region. It will improve the overall efficiency, stability, ...