Sökning: "train converter"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden train converter.

  1. 1. Development and Analysis of Small Signal DQ-Frame Model for Low Frequency Stability of Train Converters

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Fabian Tidner; [2023]
    Nyckelord :Low Frequency stability; DQ-frame modeling; Single phase converter; Electric rail way systems; Lågfrekvent stabilitet; DQ-ram modellering; Enfasig likriktare; Elektriska järnvägssystem;

    Sammanfattning : In order to meet the increasing demand for sustainable transportation, trains need to run with tighter schedules, more departures and more trains in depot. Multiple trains in depot has been linked to low frequency instability at many locations around the world. LÄS MER

  3. 2. Flood Proof Design of a Train Converter

    Kandidat-uppsats, Högskolan i Halmstad

    Författare :Arya Rabani; Basel Balta; Ammar Mesleh; [2023]
    Nyckelord :Flood proof; design; Material; train converter; Alstom; Bachelor s Thesis; Mechanical; Engineering; Catia v5; SimSolid;

    Sammanfattning : The objective of this thesis is to enhance the TC1500 LAB converter, which is anelectrical train converter to be waterproof up to a height of 650 [mm] from raillevel, addressing a pressing need in railway systems. The critical components ofthe converter have been identified for consideration. LÄS MER

  4. 3. Boost Converter Inductor Design for High-Power Fuel Cells Using Pareto Optimisation for Single and Coupled Cores

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Lucas Tunelid; [2022]
    Nyckelord :Fuel Cells; Interface Converters; Inductor Design; Mutiobjective Optimisation; Bränsleceller; Gränsnittsomvandlare; Induktor Design; Multiobektiv Optimering;

    Sammanfattning : Hydrogen has been identified by the European Commission to be a competitive alternative to fossil fuels within the transport sector in the medium to long perspective. Because of this, an increased understanding is required of the electrical power train present within such vehicles. LÄS MER

  5. 4. Pre-study of optical LED units for shunting signals

    M1-uppsats, KTH/Hälsoinformatik och logistik

    Författare :Tobias Adolfsson; Axel Dellenby; [2021]
    Nyckelord :LED - Light Emitting Diode; Booster Converter; MLCC - Multi-layer capacitor; ESR - Equivalent Serie Resistance; OU - Optical Unit; Reactive compensation; LED - lysdiod; step-up omvandlare; MLCC - flerskiktskeramisk kondensator; ESR - ekvivalent serie motstånd; OU - optiskt enhet; reaktiv kompensering;

    Sammanfattning : Alstom wanted to investigate the possibility of adapting its light emitting diode (LED) technology for shunting signals in train traffic. The LED technology uses 50V, but Alstom wants to adapt it for 12V. The LED technology is energy efficient but needs to be adapted for existing signal interlocking by drawing a higher current. LÄS MER

  7. 5. Stabilization of Constant Power Loads Using Model Predictive Control

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Mikael Glamheden; [2020]
    Nyckelord :;

    Sammanfattning : This thesis considers stabilization of constant power loads (CPLs) fed by a dcpower source through an input filter, using model predictive control (MPC).Train propulsion systems generally utilize electrical motors whose output torqueis tightly regulated by power converters. Often, these systems behave as CPLs. LÄS MER