Sökning: "Rectifier"

Visar resultat 21 - 25 av 44 uppsatser innehållade ordet Rectifier.

  1. 21. Analys av lågspänningsfördelning till signalanläggningar

    M1-uppsats, KTH/Data- och elektroteknik

    Författare :Jacques Pedral; Josef Abriren; [2016]
    Nyckelord :UPS; railway station; model station; low voltage power distribution; interlocking system; uninterruptible and favored power supply; rectifier DC-system ; accumulator; UPS; driftplats; typstation; lågspänningsfördelning; signalställverk; avbrottsfri och favoriserad kraft; likriktarsystem DC ; ackumulator;

    Sammanfattning : I denna rapport utreds hur systemdesignen av lågspänningsfördelningen för järnvägen kan kostnadseffektiviseras. I dagsläget har det utarbetats en norm kring systemdesignen som tenderar att efterbildas från år till år vilket har medfört brist på innovation inom området. LÄS MER

  3. 22. Power Electronic Stages for a TFPMSM in Wave Power Applications

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Gustaf Falk Olson; [2016]
    Nyckelord :transverse flux permanent magnet synchronous machine TFPMSM ; active rectifier; direct drive wave energy converter; feedback linearization; cascaded PID controller.;

    Sammanfattning : Direct drive wave energy conversion systems have been identified as a potentially major contributor to the world’s energy demands, forecasting shares of up to 25 % of the energy mix. Anders Hagnestål conducts research at the Royal Institute of Technology where a novel linear transverse flux permanent magnet generator is developed. LÄS MER

  4. 23. Development of EMT Simulation Model to Use RMS Control Model

    Master-uppsats, KTH/Skolan för elektro- och systemteknik (EES)

    Författare :Priya Kalikavunkal; [2016]
    Nyckelord :;

    Sammanfattning : Evolution is continuous and as a result, developments in semiconductors are endless. This led to the Voltage Source Converter (VSC) based High Voltage Direct Current (HVDC) converter termed as HVDC light. HVDC light is quite preferable because of its pros in the technology used as well as the application it is used for. LÄS MER

  5. 24. Peptide Retention Time Prediction using Artificial Neural Networks

    Master-uppsats, KTH/Matematisk statistik

    Författare :Sara Väljamets; [2016]
    Nyckelord :;

    Sammanfattning : This thesis describes the development and evaluation of an artificial neural network, trained to predict the chromatographic retention times of peptides, based on their amino acid sequence. The purpose of accurately predicting retention times is to increase the number of protein identifications in shotgun proteomics and to improve targeted mass spectrometry experiment. LÄS MER

  7. 25. Active rectification and control of magnetization currents in synchronous generators with rotating exciters : Implementation of the SVPWM algorithm using MOSFET technology

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Tomas Johansson; [2015]
    Nyckelord :rectification; SVPWM; space vector pulse width modulation; current control; active rectification; three phase;

    Sammanfattning : This thesis aims to design and build a power electronics system for the rectification and control of magnetization currents in synchronous generators with rotating exciters.The rotating exciter provides three-phase AC while the generator rotor needs DC with a high degree of control. LÄS MER