Essays about: "LQG-control"

Showing result 1 - 5 of 6 essays containing the word LQG-control.

  1. 1. Implementation of Fast Real-Time Control of Unstable Modes in Fusion Plasma Devices

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Martin Lundberg; [2017]
    Keywords : Fusion plasma; MHD control; CUDA;

    Abstract : In recent years, multi-core graphics processing units (GPUs) have been increasingly used by researchers for other purposes than rendering graphics. This thesis presents the implementation of GPU computing for real-time control of plasma instabilities known as resistive wall modes at the EXTRAP T2R fusion plasma device. READ MORE

  3. 2. Attitude and Orbit Control During Deorbit of Tethered Space Debris

    University essay from KTH/Farkost och flyg

    Author : Linus Flodin; [2015]
    Keywords : space debris mitigation; deorbit; tethered satellites; mathematical modeling; attitude and orbit control system; LQG control; PID control; switched control;

    Abstract : Due to the unsustainable space debris environment in Low Earth Orbit, debris objects must be removed to ensure future safe satellite operations. One proposed concept for deorbiting larger space debris objects, such as decommissioned satellites or spent upper rocket stages, is to use a chaser spacecraft connected to the debris object by an elastic tether, but the required technology is immature and there is a lack of flight experience. READ MORE

  4. 3. LQG-control of a Vertical Axis Wind Turbine with Focus on Torsional Vibrations

    University essay from Avdelningen för systemteknik

    Author : Adam Alverbäck; [2012]
    Keywords : LQG-control; Vertical axis wind turbine; torsional oscillations;

    Abstract : In this thesis it has been investigated if LQG control could be used to mitigate torsional oscillations in a variable speed, fixed pitch wind turbine. The wind turbine is a vertical axis wind turbine with a 40 m tall axis that is connected to a generator. READ MORE

  5. 4. Modeling and Control of Reaction Calorimeter System

    University essay from Lunds universitet/Institutionen för reglerteknik

    Author : David Lam; Linda Törner; [2008]
    Keywords : Technology and Engineering;

    Abstract : In dealing with calorimetry, safety aspects are very important. It is therefore very useful to be able to study a process before carrying out experiments on it. A computer model can then be very useful to save time and money. READ MORE

  6. 5. Control of Torsionalpendulum on Containercranes

    University essay from Institutionen för systemteknik

    Author : Pär Bäck; [2004]
    Keywords : Reglerteknik; STS-crane; skew-angle; torsional pendulum; MPC-control; LQG-control; statefeedback control; kalman estimation; Reglerteknik;

    Abstract : A container crane of STS-type, Ship To Shore, consists of a spreader hanging underneath a railrunning trolly. As the container is under the influence of wind, it is likely that it starts to turn in a torsional pendulum. This report handles how the torsional pendulum of a container crane can be damped. READ MORE