Search for dissertations about: "Saturation"

Showing result 1 - 5 of 372 swedish dissertations containing the word Saturation.

  1. 1. Noise and Saturation Properties of Fiber Optical

    Author : Per Kylemark; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; nonlinear fiber optics; four-wave mixing; single-pumped; regeneration; saturation; dual-pumped; noise figure; parametric amplification;

    Abstract : Fiber Optical Parametric Amplifiers (FOPAs) are based on a highly efficient Four-wave Mixing process in highly nonlinearfibers and have gained a lot of interest since it was shown that ahigh gain can be obtained. They are multi-functional devices thatare not only limited to amplifying signals, but their wide range ofapplicability also include wavelength conversion, pulse-generation,optical sampling and also regeneration at very high bit-rates. READ MORE

  2. 2. Aspects on Wind Turbine Protections and Induction Machine Fault Current Prediction

    Author : Marcus Helmer; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; saturation; Induction generator; Short circuit currents; Slip ring Generator; skin effect;

    Abstract : This thesis presents detailed modelling of the induction machine with the main objective being accurate fault current prediction. The thesis focus mainly on mains connected induction machines and the response due to severe disturbances in the supply voltage, such as three-phase short-circuit faults. READ MORE

  3. 3. Nonlinear Evolution in High Energy QCD

    University dissertation from Theoretical High Energy Physics

    Author : Emil Avsar; Lunds universitet.; Lund University.; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Elementarpartikelfysik; quantum field theory; DIS; Elementary particle physics; Saturation; QCD; Small-x Physics; kvantfältteori; High energy interactions; cosmic rays; Kosmisk strålning; högenergi;

    Abstract : Popular Abstract in Swedish QCD vid höga energier är fortfarande inte väl förstådd. Svårigheter uppkommer ifrån en starkt icke-linjär dynamik, samt från icke-störningsmässiga fenomen. Analytiska beräkningar är oftast möjliga enbart för enkla leksaksmodeller, eller för asymptotiska energier. READ MORE

  4. 4. Design of a fault-tolerant fractional slot PMSM for a vehicle application

    University dissertation from Theoretical High Energy Physics

    Author : Christian Dubar; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; PMSM; Efficiency; Fault-tolerant; Unbalanced operation; Saturation; Fault-tolerance; Fractional slot; Permanent magnet synchronous machine; PMSM ; Concentrated windings;

    Abstract : In automotive applications, the PMSM is an interesting alternative due to the high efficiency requirement; as only a limited amount of energy can be stored in the relatively expensive battery. Another advantage is the high torque and power density since it is very important to save especially space but also weight in vehicle applications. READ MORE

  5. 5. Active Vibration Control of Multibody Systems Application to Automotive Design

    University dissertation from Uppsala : Institutionen för informationsteknologi

    Author : Claes Olsson; Uppsala universitet.; Uppsala universitet.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Active Vibration Control; Vibration Isolation; Feedback Control; Adaptive Filtering; Saturation; Limit Cycles; Multi Body Systems; Modelling; Simulation; Non-linearity; Gain Scheduling; Structure Flexibility; TECHNOLOGY Information technology Automatic control; TEKNIKVETENSKAP Informationsteknik Reglerteknik;

    Abstract : Active vibration control to reduce vibrations and structure borne noise is considered using a powerful multi-disciplinary virtual design environment which enables control system design to be considered as an integral part of the overall vehicle design.The main application studied is active automotive engine vibration isolation where, first, the potential of large frequency band multi-input multi-output H2 feedback control is considered. READ MORE