Mastergradsoppgaver i elektroteknologi: Recent submissions

Now showing items 41-60 of 73

    • 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 ...

    • Transient analysis of road tunnel power system 

      Ivanova, Elizaveta (Master thesis; Mastergradsoppgave, 2018-08-16)
      The main tasks of Statens Vegvesen is to plan, build and maintain the roads of Norway. Tunnels are included as a part of this task. Due to expected changes in usage patterns and needs, the Norwegian authorities decided to adapt to the European model the design of low voltage networks. The backup power system is one of the most important parts of the installation and presents an independent source ...

    • Reliable parameter identification for synchronous machines 

      Alves, Erick Fernando (Master thesis; Mastergradsoppgave, 2018-08-16)
      This work investigates and implements algorithms for reliable parameter identification for salient pole synchronous machines that can be used for condition monitoring, on line assessment of the power grid, and adaptive control. All these applications are steps necessary to enable a smarter power grid, in which seamless integrated digital technology provides state estimation, fault detection, and ...

    • Large-scale Wind Power Integration in Northern Norway 

      Singh, Arwinder (Master thesis; Mastergradsoppgave, 2018-08-16)
      Norway has very high flexibility in energy production since hydropower covers about 95% of yearly energy demand. It is best to have a combination of wind and hydropower and hence it applies perfectly here in Norway. The performance of the wind farm can be significantly enhanced by employing full-capacity converters. The state-of-the-art literature study has been done on Squirrel Cage Induction ...

    • Innvirkninger av distribuert produksjon i svake distribusjonsnett, lokalisert i nordområdene. Hvordan påvirker plusskunder det omkringliggende lavspente distribusjonsnettet. 

      Johannessen, Leif Inge Krogstad (Master thesis; Mastergradsoppgave, 2018-08-16)
      I denne rapporten har virkninger av plusskunder i svake, lavspente distribusjonsnett blitt undersøkt. Gjennom en informasjonsinnsamling, ble de største utfordringer for fremtidige plusskunder identifisert. Herunder aktuelle teknologier, energiresuser, regelverk og tekniske forhold. Det ble undersøkt hvilke utfordringer et nettselskap kan forvente seg, ved introduksjon av lokal produksjon i et ...

    • Rammeverk for modellering og simulering av husholdningsapparater 

      Nilsen, Christian Bjerknes (Master thesis; Mastergradsoppgave, 2018-08-16)
      Denne oppgaven har hatt til hensikt å utarbeide et rammeverk for modellering og simulering av husholdningsapparater i Simulink, hvor det er muligheter for sammenkobling av flere enheter basert på typiske utstyr i norske husholdninger. Tilkoblingen av modellene kan være via TN-nett, IT-nett eller andre mindre kilder i Simulink. Videre er det gjennomført en litteraturstudie av ulike typer utstyr ...

    • Designing a lifting and lowering device to the storage market 

      Hoff, Even (Master thesis; Mastergradsoppgave, 2017-06-15)
      "The aim of this thesis is to design a lifting and lowering device for the storage market. The design is based on a patent, held by Dropracks, which is a collaborator in the thesis. Dropracks is a company developing a lowerable roof rack for cars. This rack is protected by their patent of a lifting and lowering device. This patent gives Dropracks an immaterial protection in all industry sectors, and ...

    • A Comparison on Development of Pumped Storage Hydropower in Europe and Asia. An Analytical Case Study based on Pumped Storage Hydroelectric Projects developed in Europe and Asia in period 2010-2017 

      Mishra, Parash Mani (Master thesis; Mastergradsoppgave, 2017-06-15)
      "Energy consumption in European countries is increasing in significant amount each year. EU countries are becoming more concerned towards environmental safeguarding along with energy production. Wind and solar power have increased their market in many power systems in the recent decades and the main limitation is that they are greatly time dependent and are not available all the time to cope with ...

    • Multisensor video magnification 

      Shrestha, Dinesh (Master thesis; Mastergradsoppgave, 2017-06-13)
      This study was performed with the three main goals. The first of which includes the implementation of “Eulerian Video Magnification” for the normal videos to observe the subtle changes that cannot be seen through the naked eyes. The second goal was to implement interpolation on thermal infrared videos. Finally, the third goal is to combine both the videos to amplify complex variations to reveal ...

    • Classification of electroncephao-graph signals by convolutional neural network 

      Lin, Jiaxin (Master thesis; Mastergradsoppgave, 2017-06-13)
      This thesis presents a brief introduction to epilepsy diagnosis use convolution neutral network. The datasets create through Electroencephao-graph(EEG) signal.Electroencephao-graph(EEG) is one of the most commonly signals recorded from humans like electrocardiogram(ECG). In this thesis give a short introduce about the EEG signal. Because EEG recordings are important in the diagnosis of epilepsy. But ...

    • Parabolic reflector for focusing of underwater acoustic waves 

      Rasmussen, Helene Liebak; Flø, Julianne Tjervåg (Master thesis; Mastergradsoppgave, 2017-06-15)
      Kongsberg Maritime has produced a transponder placed on the seabed designed for receiving and transmitting sound waves from vessels and ROVs. The soundwaves contain data regarding depth and location, and can be transformed to energy thus increasing the transponder battery lifetime. The transponder can only receive a small amount of energy, since its receiving area is small. This project aims to ...

    • Optimization of the mass of a sandwich plate that TAM is producing 

      Jensen, Bjarne Steinulv (Master thesis; Mastergradsoppgave, 2017-06-15)
      In this report the possibility to optimize the mass of a sandwich plate that TAM produces have been reviewed. Dimensions of the plate is 2602mm x 2404mm with a core thickness of 40mm, top facing of 3mm and bottom facing of 1mm. To simplify the computations they calculate with uniform facings of 1mm. The function of the sandwich plate is to lift livestock with wires that are fastened in the four ...

    • General purpose process control unit 

      Mokrushev, Ivan (Master thesis; Mastergradsoppgave, 2017-06-12)
      The main purpose of the thesis is to make a control unit where different models can be tested with a number of motors, sensors, indicators, control devices which are used by Fischertechnik in training models. This work observes different types of speed motor control and investigates most useful method that could be implemented at the PLC Lab. It would be very useful to simulate separated parts of ...

    • Modeling and Simulation of Heat Transfer in Blocks with Thin Pipes 

      Karlsen, Renate (Master thesis; Mastergradsoppgave, 2017-06-13)
      "The report presents modified Stokes equations and natural convection-diffusion equations that are needed to implement a system which uses natural convection to transport energy from one area to another. The thesis also includes results from a numerical simulations that used these equations as arguments."

    • Genetic algorithms (GA) for adaptable design 

      Jansson, Andreas Dyrøy (Master thesis; Mastergradsoppgave, 2017-06-13)
      This thesis discusses the process of implementing and testing of a creative web element design system using a combination of genetic algorithms and K-nearest neighbor classification. Classification will be used as a learning mechanism to give the system the ability to absorb quality measures in regards to visual aesthetics, and utilize this knowledge to evaluate generated designs. In addition, some ...