Sökning: "Semi-submersible"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet Semi-submersible.

  1. 1. The Paradigm Shift for Substations Technology within Wind Power Applications from Onshore to Floating

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

    Författare :Ahmad Talaat Hifzy; [2023]
    Nyckelord :Floating; offshore; substation; transformer; GIS; equipment; high-voltage; fatigue; Flytande; havsbaserad; station; transformator; GIS; utrustning; högspänning; utmattning;

    Sammanfattning : Floating wind turbines are attracting more attention as more than three-quarters of the total offshore technical potential is located in deep water, leading to a growing trend in floating wind farm projects. Consequently, it becomes necessary to develop Floating Offshore Substation (FOSS) to step up voltage and efficiently transmit power to the shore with minimal losses. LÄS MER

  3. 2. Comparison of electricity production between semi-submersible and spar-buoy floating offshore wind turbines

    Magister-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Nermina Saracevic; [2018]
    Nyckelord :floating offshore wind turbine; semi-submersible; spar-buoy; six degrees of freedom; platform-rotor interaction; ASHES;

    Sammanfattning : The paper compares electricity production between the semi-submersible and the spar-buoy floating wind turbine systems under normal, stochastic and extreme wind conditions at Utsira Nord site located on the Norwegian continental shelf in the North Sea. The analysis of complex behavior of the floating wind turbine system and the fluid-structure interaction is performed in aero-servo-hydro-elastic code ASHES. LÄS MER

  4. 3. Utilization of Horizontal-Axis Tidal Stream Turbines As a Main Power Supply System On Offshore Remote Oil&Gas Platforms

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Anton Karamanov; [2018]
    Nyckelord :Energy efficiency; petroleum industry; offshore drilling; tidal turbines; Energieffktivitet; petroleumindustri; offshoreborrning; tidvattensturbiner;

    Sammanfattning : The master's thesis contains 97 pages, 29 tables, 33 figures and 43 sources of literature. The paper presents a study on increasing the efficiency of the power supply of remote offshore oil and gas facilities through the use of horizontal-axial tidal stream turbines. LÄS MER

  5. 4. Utilizing Energy Storage Applied on Floating Wind Turbine Economics Using a Spot-Price Based Algorithm

    Magister-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Jim Johansson; [2017]
    Nyckelord :wind power; wind energy; energy storage; spot-price; CAES; ORES; PHES; BESS; floating wind turbine; semi-submerged; spar-type; tension-leg; intermittent wind;

    Sammanfattning : In this paper, a new algorithm for utilizing energy storage is proposed and applied on floating wind turbine economics. The proposed algorithm’s decision making on storing energy or selling electricity onto the grid is based on the electricity price, which makes it unique and different from similar algorithms. LÄS MER

  7. 5. Dynamic positioning of a semi-submersible, multi-turbine wind power platform

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Avdelningen för systemteknik

    Författare :John Ayotte; [2015]
    Nyckelord :;

    Sammanfattning : As a growing market for offshore wind power has created a niche for deep-water installations, offshore floating wind solutions have become more and more viable as a renewable energy source. This technology is currently in development and as with many new technologies, many traditional design methods are found lacking. LÄS MER