Essays about: "subsea system"

Showing result 6 - 10 of 10 essays containing the words subsea system.

  1. 6. Techno-economic analysis of integrating renewable electricity and electricity storage in Åland by 2030 : Overview of the current energy situation and definition of four possible environmentally friendly pathways

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Dario Nikzad; [2019]
    Keywords : Islanded energy system; renewable energy; electricity storage; energy system modelling;

    Abstract : The study focuses on the possible positive impacts derived from implementing innovative energy solutions to the Åland energy system by 2030. Four scenarios are formulated in order to determine feasible solutions in economic and technological terms. READ MORE

  3. 7. Detection and location of HVDC commutation faults from PMU data

    University essay from Lunds universitet/Industriell elektroteknik och automation

    Author : Alejandro Belinchon Calderon; [2018]
    Keywords : HVDC-links; HVDC converters; Commutation failures; Phasor measurement units PMUs ; Electric power systems; Wide Area Measurement systems WAMS ; Standard IEEEC 37.118; Single-line to ground faults; Three-Phase faults; Fault detection and location; Nordic 32; DigSilent-PowerFactory; PSCAD; MATLAB-Simulink; Symmetrical components.; Technology and Engineering;

    Abstract : Commutation Failures in LCC HVDC converters is a topic that is normally addressed from the component perspective, looking at converters’ internal signals. How these commutation failures affect the outer AC network is not deeply understood yet. READ MORE

  4. 8. Modeling, Analysis and Control of Underwater Vehicle SROV

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : Olle Ferling; [2018]
    Keywords : Technology and Engineering;

    Abstract : A new type of Remotely Operated Vehicle (ROV) has been designed by Marin Mätteknik (MMT) in cooperation with Reach Subsea and Kystdesign AS; the Surveyor ROV. Although MMT is successfully using the SROV in day-to-day operations, no mathematical model describing the system has previously been derived. READ MORE

  5. 9. Short-circuit Contributions from Fully-rated Converter Wind Turbines : Modeling and simulation of steady-state short-circuit contributions from FRC wind turbines in offshore wind power plants

    University essay from KTH/Elektriska energisystem

    Author : Joakim Ahnlund; [2014]
    Keywords : ;

    Abstract : In recent years there has been an increase in wind power plants installed out at sea. The generated power of wind turbine generators (WTGs) are collected through numerous subsea cables into a single hub, the offshore platform. Subsequently, this platform is interconnected with the onshore main grid through a further stretch of cable. READ MORE

  6. 10. Application of Layers of Protection Analysis (LOPA) for subsea production systems - A risk based model for determination of integrity levels in a global perspective

    University essay from Lunds universitet/Avdelningen för Brandteknik; Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

    Author : Christoffer Clarin; [2013]
    Keywords : Failure frequency; failure mechanisms; hydrocarbons; leakage; LOPA; LOPA-credit; offshore; oil; protection layers; SIL; SIS; subsea; subsea system; felfrekvens; felmekanismer; hydrokarboner; läckage; olja; skyddsbarriärer; Technology and Engineering;

    Abstract : Depletion of onshore and shallow water reserves, in combination with new subsea technology, has made the petroleum industry advance into deeper water. However, new technology also brings new risks. Since most widely accepted standards and regulations are not directly aimed for subsea systems, new methods have to be developed. READ MORE