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Visar resultat 1 - 5 av 71 uppsatser som matchar ovanstående sökkriterier.

  1. 1. FPGA Based Control of Multiple Electric Machines for Marine Propulsion Systems

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Simon Weideskog; [2024]
    Nyckelord :FPGA; Field Oriented Control; BLDC; SVPWM; SMO; Electric Drives; Electric Machines; Sliding Mode Observer; Marine Propulsion; Multiple Machines; Boat Motor; Fältorienterad styrning; marin framdrivning; elektriska drivsystem; elmaskiner; flertal maskiner; båtmotor;

    Sammanfattning : This master thesis addresses the control of electric propulsion motors in a marine context. The focus lies mainly on the implementation of field oriented control (FOC) in a field programmable gate array (FPGA). The hypothesis is that FPGAs provide performance advantages over microcontroller-based control solutions by enabling parallel processing. LÄS MER

  2. 2. Experiments with Visual Odometry for Hydrobatic Autonomous Underwater Vehicles

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Somnath Balaji Suresh Kumar; [2023]
    Nyckelord :Hydrobatic AUVs; VO; Stonefish; ORB-SLAM2; VISO2; Hydrobatiska AUV:er; VO; Stonefish; ORB-SLAM2; VISO2;

    Sammanfattning : Hydrobatic Autonomous Underwater Vehicles (AUVs) are underactuated robots that can perform agile maneuvers in challenging underwater environments with high efficiency in speed and range. The challenge lies in localizing and navigating these AUVs particularly for performing manipulation tasks because common sensors such as GPS become very unreliable underwater due to their poor accuracy. LÄS MER

  3. 3. Technical requirements for mooring goods in the Swedish Navy

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Dennis Ekman; [2023]
    Nyckelord :Mechanics; Solid Mechanics; Navy; FMV; Defence; Ship; Boat; Hawser; Mooring; Mooring goods; FEM; Mekanik; Hållfasthetslära; Marinen; Marin; Flottan; FMV; Försvaret; Skepp; Båt; Tågvirke; Förtöjningsgods; Tamp;

    Sammanfattning : The objective of this thesis is to generate and enhance technical specifications for mooring equipment designated for the Swedish Navy, as commissioned by the Swedish Defence Materiel Administration. The technical specifications will primarily emphasize the capacity to endure various load scenarios imposed by the Swedish Defence on the mooring equipment. LÄS MER

  4. 4. Näringsämnen och metaller i sediment och blåmusslor från Hanöbukten - En analys av marin miljöpåverkan från massabruk

    Master-uppsats, Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Elvira Källberg; [2023]
    Nyckelord :Föroreningar; massabruk; blåmusslor; sediment; Earth and Environmental Sciences;

    Sammanfattning : The pulp industry is important for creating sustainable paper products and for the Swedish economy. However, the industry has historically polluted marine environments through its emissions. This study aims to analyse the effects of the pulp mill Södra Cell Mörrum on the marine recipient Hanö Bay in the southern Baltic Sea. LÄS MER

  5. 5. EV charging approaches in remote regions – Analysis of capacity, cost and logistics

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Farhaan Ahamed; Juan Ordonez Marin; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : With countries across the world finding pathways to counter CO2 emissions, sustainable mobility has become a critical topic for leaders, policymakers, and industries. The development of Battery Electric Vehicles (BEV’s) is seen as an important and effective way through which reliance on fossil fuels and thereby related CO2 emissions can be reduced. LÄS MER