Sökning: "model order reduction"

Visar resultat 21 - 25 av 536 avhandlingar innehållade orden model order reduction.

  1. 21. Linear Time-Varying Systems: Modeling and Reduction

    Författare :Henrik Sandberg; Anders Rantzer; Alexandre Megretski; Institutionen för reglerteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; linear time-varying; model reduction; balanced truncation; error bounds; power converters; harmonics; periodic modeling; inverter locomotive; linear time-varying; model reduction; balanced truncation; error bounds; power converters; periodic modeling; harmonics; inverter locomotive;

    Sammanfattning : Linear time-invariant models are widely used in the control community. They often serve as approximations of nonlinear systems. For control purposes linear approximations are often good enough since feedback control systems are inherently robust to model errors. In this thesis some of the possibilities for linear time-varying modeling are studied. LÄS MER

  3. 22. BlueBellMouse. A Tool for Kinetic Model Development

    Författare :Raffaella Bellanca; Förbränningsfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; combustion; HCCI; reduction; engine; kinetic; simulation; graphical user interface; GUI; optimization; chemical mechanism; Physics; Fysik; Fysicumarkivet A:2004:Bellanca;

    Sammanfattning : The simulation of physical phenomena occurring in chemical reactors requires the description of the kinetics involved in the underlying combustion process. Kinetic models are developed for this purpose. LÄS MER

  4. 23. Model order reduction in FEMLAB by dual rational Arnoldi

    Författare :K. Henrik A. Olsson; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  5. 24. Model Reduction for Control of Stirred Tank Reactor Processes

    Författare :Veronica Olesen; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; QFT; CSTR; sensitivity functions; Model simplification; closed loop;

    Sammanfattning : Models of chemical processes have a tendency of being far too complex for controller design. In many cases these models are also too complex for simulation together with other sub-systems, due to long simulation times and numerical problems. LÄS MER

  7. 25. Nanostructured Model Electrodes for Studies of Fuel Cell Reactions

    Författare :Björn Wickman; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Oxygen Reduction; Hydrogen Oxidation; Degradation; PEMFC; Model System; Nanofabrication; Fuel Cell; Catalyst; Electrode;

    Sammanfattning : There is currently a general need for alternative and sustainable energy systems. As part of such a system, the polymer electrolyte fuel cell (PEMFC) offers efficient and emission free energy conversion. LÄS MER