Sökning: "LQG control"

Visar resultat 6 - 10 av 27 uppsatser innehållade orden LQG control.

  1. 6. Control of a Multivariable Lighting System

    Master-uppsats, Linköpings universitet/Reglerteknik

    Författare :Axel Halldin; [2017]
    Nyckelord :Cotrol Allocation; lighting system; MIMO control; multivariable control; light system; recursive least square; RLS; model predictive control; MPC; LQG; static control; non-dynamic control;

    Sammanfattning : This master’s thesis examines how a small MIMO lighting system can be identified and controlled. Two approaches are examined and compared; the first approach is a dynamic model using state space representation, where the system identification technique is Recursive Least Square, RLS, and the controller is an LQG controller; the second approach is a static model derived from the physical properties of light and a feedback feed-forward controller consisting of a PI controller coupled with a Control Allocation, CA, technique. LÄS MER

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

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Martin Lundberg; [2017]
    Nyckelord :Fusion plasma; MHD control; CUDA;

    Sammanfattning : 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. LÄS MER

  4. 8. Dynamics and Control of Unmanned Spacecraft Rendezvous and Docking

    Master-uppsats, KTH/Farkost och flyg

    Författare :Helmi Maaroufi; [2017]
    Nyckelord :;

    Sammanfattning : This paper presents a study on spacecraftRendezvous and Docking (RvD) through a comprehensiveliterature review, in addition to investigate the main phases andpossible control methods during the space rendezvous and docking.It presents a study of different energy efficient far rangerendezvous (e.g. Hoffman, bi-elliptic, phasing maneuver etc. LÄS MER

  5. 9. Attitude and Orbit Control During Deorbit of Tethered Space Debris

    Master-uppsats, KTH/Farkost och flyg

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

    Sammanfattning : 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. LÄS MER

  7. 10. Control design for diesel engines using a Modelica model

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Anders Nylén; [2015]
    Nyckelord :Technology and Engineering;

    Sammanfattning : The Modelica language supports reusable components throughout the design process. Using the Functional Mock-up Interface, system model built by reusable components can be transferred to different platforms. This can be done in a straightforward manner and makes it possible for different engineering divisions to use the same Modelica models. LÄS MER