Essays about: "trefas"

Showing result 1 - 5 of 12 essays containing the word trefas.

  1. 1. A Novel Two-Level Inverter Design for Efficient Energy Conversion in a Maglev Train Rail

    University essay from Högskolan i Halmstad/Akademin för informationsteknologi

    Author : Oskar Zetterström; Stefan West Westholm; [2023]
    Keywords : IGBT; Inverter; Gate-driver; Prototype; Pulse width modulation; Sine wave; Maglev train; IGBT; Växelriktare; Grinddrivenhet; Prototyp; Pulsbreddsmodulering; Sinusvåg; Maglevtåg;

    Abstract : This report covers the construction of a prototype inverter system designed to power the rail of a maglev train, from component selection through simulations and power demands to mounting and wiring the components into a cabinet. The inverter is made with insulated gate bipolar transistors controlled with pulse-width modulated signals provided by a custom microcontroller. READ MORE

  2. 2. Single- or Three-Phase Supply to Homes : Advantages and Disadvantages compared between Single-phase and Three-phase domestic electricity

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Alexander Grönblad; [2022]
    Keywords : Elecricity Tariff; Single-phase Supply; Three-phase Supply; Load Curve; Homes; Eltariff; Enfasmatning; Trefasmatning; Lastprofil; Bostäder;

    Abstract : A three-phase power supply is a de facto standard when selecting a power supply to homes in Sweden, regardless of whether it is flat with low energy consumption or a house with electric heating. This project aims to determine the advantages and disadvantages of using a three-phase supply compared to a single-phase supply to homes. READ MORE

  3. 3. Analysis and Performance Evaluation of a Three-phase Three-level Sparse Neutral Point Clamped Converter for Industrial Variable Speed Drives

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Pengpeng Sun; [2022]
    Keywords : Sparse Neutral Point Clamped Converter; Industrial Variable Speed Drives; Silicon IGBT; Calorimetric Measurement; Reverse Recovery Energy; Sparse Neutral Point Clamped Converter; Industriella Varvtalsstyrda Motordrifter; Silicon IGBT; Kalorimetrisk Mätning; Energi för Återhämtningsprocess;

    Abstract : This thesis project focuses on the simulation, design, hardware realization, and performance evaluation of a Three-phase Three-level (3-L) Sparse Neutral Point Clamped Converter (SNPCC) for Industrial Variable Speed Drives (VSDs). The basic operating principle of the SNPCC is briefly described based on switching functions. READ MORE

  4. 4. Electric conversion of combustion engine cars

    University essay from KTH/Hållbar produktionsutveckling (ML)

    Author : Annika Modling; Bobby Åbrandt; [2022]
    Keywords : Electric conversion; combustion engine; electric motor; lithium-ion; lead-acid; DIY; second hand; Elkonvertering; förbränningsmotor; elmotor; litiumjon; blysyra; DIY; begagnat; cirkulär process;

    Abstract : The electrification of personal transport vehicles is one of the strategies to counteract global warming and dependance on fossil fuels. Diesel powered cars are already prohibited in several big cities and the prices for fuel are constantly climbing. READ MORE

  5. 5. Development of an experimental six-phase induction machine drive

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Adam Bianchi; [2021]
    Keywords : Asymmetrical six-phase induction machine; indirect rotor field oriented control; machine rewinding; multiphase electrical machines; PCB design; speed control; the star of the slot .; Asymmetrisk sexfasig asynkronmaskin; flerfasiga elektriska maskiner; hastighetsreglering; indirekt rotorfälts orienterad reglering; kretskorts design; maskinomlindning; the star of the slot .;

    Abstract : Electrical machines with more than three phases are usually called multiphase electrical machines and they can have several advantages compared to conventional three-phase electrical machines such as a lower content of space-harmonics, lower torque ripple and better fault tolerance. This degree project involves rewinding of a three-phase induction machine into an asymmetrical six-phase machine. READ MORE