Recent additions

  • Optimal Volt Var control in Smart Distribution Networks 

    Shamraiz, Shamraiz (Master thesis; Mastergradsoppgave, 2021-05-24)
    Both the generation and transmission power networks are facing new threats and opportunities as the number of distributed energy resources (DERs) grows. Because of the high solar PV penetration, voltage rise and voltage volatility are becoming major problems in the distribution network. Voltage regulating devices (VRDs), such as on load tap changers (OLTCs), phase voltage regulators (SVRs), and ...
  • Designing an Autonomous Racing Drone 

    Trældal, Alexander (Master thesis; Mastergradsoppgave, 2021-05-19)
    In recent years drone racing using human pilots have increased in popularity. This combined with the increased usage of autonomous driving vehicles have sparked a new field of interest which is Autonomous Racing Drones competitions. This thesis explores the field of drone design and avionics with the conclusion of presenting the first Racing Drone prototype that can be used in future work made by ...
  • Continuous Autonomous UAV Inspection for FPSO vessels 

    Andreev, Alexey G. (Master thesis; Mastergradsoppgave, 2021-06-23)
    This Master's thesis represents the preliminary design study and proposes the unmanned aerial vehicle (UAV) -based inspection framework, comprising several multirotors with automatic charging and deployment for 24/7 integrity inspection tasks. This project has three main topics. First one describes the operational environment and existing regulations that cover use of UAVs. It forms the basis ...
  • Optimal bruk av reaktive ressurser 

    Arnesen, Jan Tore (Master thesis; Mastergradsoppgave, 2021-05-18)
    God kontroll av reaktiv effekt er en helt nødvendig del av et velfungerende kraftsystem. Reaktiv effekt er funksjon av spenning og lastvinkel, men er i størst grad påvirket av spenningen under normale forhold. Det finnes mange forskjellige reaktive ressurser i kraftsystemet, og de har forskjellige egenskaper og karakteristikker. Statiske reaktive ressurser er kondensatorbatterier, reaktorer og ...
  • Roach Infestation Optimization MPPT Algorithm of PV Systems for Adaptive to Fast-Changing Irradiation and Partial Shading Conditions 

    Ntiakoh, Nicholas Kakra (Master thesis; Mastergradsoppgave, 2021-05-18)
    Of all the renewable energy sources, solar photovoltaic (PV) power is considered to be a popular source owing to several advantages such as its free availability, absence of rotating parts, integration to building such as roof tops and less maintenance cost. The nonlinear current–voltage (I–V) characteristics and power generated from a PV array primarily depends on solar insolation/irradiation and ...
  • Study & Analysis of Power Switches with reverse voltage blocking capability 

    Mughal, Babur Zaman Khan (Master thesis; Mastergradsoppgave, 2021-05-25)
    This thesis hovers over the basic introduction to Silicon Carbide (Metal Oxide Semiconductors Field-effect Transistor) MOSFET switches and the circuit designing of Current Source Invertors using SiC MOSFET switches. The thesis covers the basic grounds for all the steps needed in the implementation of hardware design for half bridge, full bridge and three phase CSIs in the future. Firstly, a ...
  • Wireless charging of offshore wind service vessels 

    Nilsen, Henrik Fjeld (Master thesis; Mastergradsoppgave, 2021-05-18)
    This report discusses the possibility for wireless charging solutions for electric vessels, with a focus on offshore wind turbine service. Where the charging time is minimal and safety for crew is important. Different types of wireless technologies have been studied, where the Inductive power transfer (IPT) is shown to be the preferred technology. Inductive power transfer (IPT) grants a safe ...
  • Modeling and Analyzing of Inverters for Controlling Voltage and Frequency in an Islanded Microgrid 

    Khan, Mazhar Ali (Master thesis; Mastergradsoppgave, 2021-05-18)
    Recently, the growth of inverter-based generations (IBGs) like solar photovoltaic (PV) and wind turbine generators in the form of microgrids (MGs) has been increasing. However, control of voltage and frequency becomes a challenging task for MGs especially when they operate in an islanded mode, due to the inherent low-inertia feature of IBGs compared to a grid-tied mode where there is a grid support. ...
  • Tethered Quadcopter Control, Simulation and Modeling platform for a small USV 

    Wæringsaasen, Sindre (Master thesis; Mastergradsoppgave, 2021-05-18)
    Maritime Robotics main intent of the thesis is to develop understanding of a small deployable camera platform capable of providing elevated situational awareness for a small USV using a tether. The thesis goes into the state-ofthe-art methods of usage and control of a tethered drone. The thesis goes into the building and operating of the QAV250 Pixhawk 4 mini drone and making a drone simulation ...
  • Study of Inter Area Oscillations Using Phasor Measurement Units 

    Olsen, Henrik (Master thesis; Mastergradsoppgave, 2021-05-18)
    Low-frequency oscillations in the power system have major repercussions on power system stability and the objective of maximum power transfer. Local and global control strategies have been developed to dampen and impede these oscillations. A modern local control strategy is supplying the automatic voltage regulation (AVR) of the generator with a power system stabilizer (PSS). Modern global control ...
  • A Class-E-Based AC-DC converter for PFC applications 

    Stausland, Kristian (Master thesis; Mastergradsoppgave, 2021-06-22)
    Connection of nonlinear utility load har increased through resent years and is expected to continue increasing. Nonlinear utility load injects harmonic content into the grid and reduces voltage quality for nearby consumers. To limit harmonic content from nonlinear load, the International Electrotechnical Commission requires power supplies to be designed according to IEC 61000-3-2. Fulfilling this ...
  • Solvinkel optimaliserer 

    Nilsen, Bjarne (Master thesis; Mastergradsoppgave, 2021-05-18)
    Snø og andre ting kan reflektere lys på solcellepanelene slik at de produsere mer energi. Refleksjonene kan gjøre slik at den optimale vinkelen til panelene ikke er rett mot solen. Denne rapporten går fort igjennom noen forslag til optimaliseringsalgoritmer for vinklene til solcellepanelene. Videre går den dypere inn på en algoritme som heter «test og sjekk». Kort fortalt går denne algoritmen ...
  • Building a Low-Cost Ground Station for Weather Satellite Image Reception 

    Zahid, Ezzatullah (Master thesis; Mastergradsoppgave, 2019-06-27)
    In this Thesis, a small, low-cost, portable and easily deployable ground station was built, to track and receive signals from National Oceanic and Atmospheric Administration (NOAA) weather satellites (series 15, 18 and 19) in VHF and UHF bands, process and convert these to images are presented. A ground station, capable of receiving reasonably good quality images from NOAA weather satellites was ...
  • Application of electric vehicle charging solutions on small maritime vessels 

    Mandasari, Maya (Master thesis; Mastergradsoppgave, 2019-06-28)
    This thesis explores various charging standards for electric vehicles with the goal to find a standard that can be implemented in an electric maritime vessel (EMV). Combined charging system 2.0 (CCS2) is selected and the standard is explained in detail along with the necessary power electronics. Several Matlab and dSPACE simulations is made to test the charging and communication. A laboratory ...
  • Wireless Charging for Small Electric Vessels 

    Omosanya, Hafeez Abolade (Master thesis; Mastergradsoppgave, 2019-06-28)
    With the presence of traditional thick and heavy cables for charging, the risk of humans exposed to high-voltage, and due to mechanical wear and tear in conductive materials, inductive wireless charging was introduced which is the future of charging technology. This project has focused on magnetic-coupled wireless transfer with some key components involved such as a DC voltage source, a full-bridge ...
  • HVDC Transmission and Energy Storage for Wind Power Plant 

    Moe, Torgeir (Master thesis; Mastergradsoppgave, 2019-06-28)
    This thesis will investigate the effects of an energy storage system incorporated into the submodules of a modular multilevel converter connected to a HVDC line. A simulation has been made to see the effects of energy storage on the transmission of power from a generator connected to the grid via a HVDC line with two MMCs connected in each end, one of which incorporates the energy storage system.
  • Design and construction of a half-bridge using wide-bandgap transistors 

    Vatshelle, Fredrik Hausvik (Master thesis; Mastergradsoppgave, 2019-06-28)
    A continuously increasing demand of electric power makes energy efficiency imperative in modern technology. The transistor is considered as the fundamental element of modern electronic products.
  • Sol vinkel estimator. Solpanel rig med dobbel akse orientering 

    Mikkelsen, Rolf Olaf (Master thesis; Mastergradsoppgave, 2019-06-28)
    Denne rapporten presenterer design og simuleringer av en toakset solcellerigg. Denne bestpunktsporingen riggen fungerer utelukkende basert på utgangseffekten til solcellepanelet montert til det. Det bruker ikke noen solsensor til å orientere solcellepanelet. Posisjonen til solen er beregnet basert på tid og stedsinformasjon. Siden dette solpanelet vil bli montert her på UiT, Norges Arktiske Universitet, ...
  • Energy storage technologies from a power system point of view 

    Wang, Raymond Klippenvåg (Master thesis; Mastergradsoppgave, 2019-06-28)
    This thesis presents energy storage technologies, as well as their most applicable ways of integration into the power system. The storage technologies provided are relevant in regards to ancillary services, peak shaving, energy arbitrage and not least integration in combination with intermittent renewable production. A grid analysis was performed to determine the obvious differences between different ...
  • Evaluation of cascaded MPC performance in voltage source converters 

    Mokrushev, Ivan (Master thesis; Mastergradsoppgave, 2018-08-21)
    Model predictive control method becomes more popular in research over the last decade. Due to the growing popularity of the model predictive control concept, there are more and more questions about the effectiveness of this method in comparison with other methods. In this thesis cascaded model predictive control of grid connected voltage source converter with LCL filter has been evaluated. The ...

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