Search for dissertations about: "H∞ control"

Showing result 1 - 5 of 351 swedish dissertations containing the words H∞ control.

  1. 1. On H-infinity Control and Large-Scale Systems

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Carolina Bergeling; Lunds universitet.; Lund University.; Lunds universitet.; Lund University.; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; H-infinity Control; Decentralized Control; Large-Scale Systems; Infinite-Dimensional Systems;

    Abstract : In this thesis, a class of linear time-invariant systems is identified for which a particular type of H-infinity optimal control problem can be solved explicitly. It follows that the synthesized controller can be given on a simple explicit form. READ MORE

  2. 2. Design of Robust PID Controllers with Constrained Control Signal Activity

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Olof Garpinger; Lunds universitet.; Lund University.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; measurement noise; constrained control signal activity; linear systems; disturbance rejection; PID control; process control; Youla parameterized controllers; algorithms and software;

    Abstract : This thesis presents a new method for design of PI and PID controllers with the level of control signal activity taken into consideration. The main reason why the D-part is often disabled in industrial control loops is because it leads to control signal sensitivity of measurement noise. READ MORE

  3. 3. PID Control, Design, Extension, Application

    University dissertation from Department of Automatic Control, Lund Institute of Technology (LTH)

    Author : Helene Panagopoulos; Lunds universitet.; Lund University.; [2000]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; control engineering; PID control. Design. Optimization. Load disturbance rejection. Measurement noise filtering. Set point response. Robustness. Sensitivity. H-infinity control. Undamped process modes. Active control. Allpass and bandpass filter. Evaluation. Steam generator. Pulp and paper.; robotics; Automation; Automatiska system; robotteknik; reglerteknik;

    Abstract : This thesis considers the design of PID controllers, the extensions of these controllers to improve their performance, and the applications of these design methods to industrial processes. New tuning methods for PI and PID controllers have been presented. These methods uses a model of the process to be controlled, given as a transfer function. READ MORE

  4. 4. Optimal Decisions with Limited Information

    University dissertation from Department of Automatic Control, Lund Institute of Technology, Lund University

    Author : Ather Gattami; Lunds universitet.; Lund University.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; systems; numerical analysis; Computer science; Convex Optimization; Graph Theory; Team Decision Theory; Game Theory; control; Datalogi; numerisk analys; system; kontroll; Automation; robotics; control engineering; Automatiska system; robotteknik; reglerteknik;

    Abstract : Popular Abstract in Swedish Denna avhandling behandlar statiska och dynamiska lagbeslutsproblem i både stokastiska och deterministiska ramverk. Lagproblemet är ett kooperativt spel, där ett antal spelare utgör ett lag som försöker optimera en given kostnad inducerad av omvärldens osäkerhet. READ MORE

  5. 5. Flow control of boundary lagers and wakes

    University dissertation from Stockholm : KTH

    Author : Jens H. M. Fransson; KTH.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laminar-turbulent transition; asymptotic suction boundary layer; free stream turbulence; Tollmien-Schlichting wave; stability; flow control; cylinder wake; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik;

    Abstract : Both experimental and theoretical studies have beenconsidered on flat plate boundary layers as well as on wakesbehind porous cylinders. The main thread in this work iscontrol, which is applied passively and actively on boundarylayers in order to inhibit or postpone transition toturbulence; and actively through the cylinder surface in orderto effect the wakecharacteristics. READ MORE