Essays about: "subsea system"

Showing result 1 - 5 of 9 essays containing the words subsea system.

  1. 1. 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

  2. 2. Control of a subsea PMSM with a very long feeding cable using a top-side converter – design and performance evaluation

    University essay from Chalmers tekniska högskola/Institutionen för energi och miljö

    Author : Junfei Tang; [2016]
    Keywords : PMSM; Subsea; Electric Drive System; Long Feeding Cable; Sensorless Control;

    Abstract : In oil and gas extraction applications, Permanent Magnet Synchronous Motors (PMSMs) are becoming a more preferred choice to drive Electric Submersible Pumps in order to achieve a higher efficiency than Induction Motors (IMs). In the drive system, a subsea PMSM is fed from a top-side Variable Speed Drive (VSD) through a transmission system including a step-up transformer and a long feeding cable. READ MORE

  3. 3. 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

  4. 4. Subsea Pumped Hydro Storage -A Technology Assessment

    University essay from Chalmers tekniska högskola/Institutionen för energi och miljö

    Author : Johan Falk; John Almén; [2013]
    Keywords : energy storage; intermittency; balancing power; subsea construction; wind power integration;

    Abstract : A novel technology for energy storage called Subsea Pumped Hydro Storage (SPHS)has been evaluated from a techno-economical point of view. Intermittent renewableenergy sources are becoming more common in the electricity grid; hence the need ofregulating power is increasing. READ MORE

  5. 5. Design of a tidal power park and a wave power park with a techno-economical approach

    University essay from Chalmers tekniska högskola/Institutionen för energi och miljö

    Author : Mikael Bitowt; Malin Johansson; [2013]
    Keywords : tidal power; wave power; wind power; subsea components; subsea collection grid; cable share; transmission; cost effective; techno-economical;

    Abstract : This report focuses on the infrastructure of a cost efficient subsea collection grid fora tidal power park and a wave power park, 50 MW and 2.5 MW, respectively. Astudy has been made on subsea components, some operating today and other underdevelopment, for an offshore collection grid. READ MORE