Sökning: "voltage references"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden voltage references.

  1. 1. Closed Loop Control of PMSM Motor : Field Oriented Control Using Hall Sensors

    Master-uppsats, Linköpings universitet/Fordonssystem

    Författare :Shawon Kumar Baral; [2021]
    Nyckelord :BLDC; PMSM; 6 step; FOC; Clarke; Motor; Park; PWM; Rotor; SVPWM;

    Sammanfattning : Fossil-fuel vehicles are one of the main causes of CO2 emissions nowadays. As we are moving toward cleaner environment electrification of vehicles are becoming more and more popular. With the environment in mind, the recent improvement in battery technology and electronics has drawn a lot of attention to Brushless DC or BLDC  motors. LÄS MER

  3. 2. Generation of Model NiMo Hydrotreating Nano-catalyst via the Spark Discharge Technique

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Hatoon Makhool; [2020]
    Nyckelord :Model catalyst systems; hydrotreating catalysts; NiMo catalysts; Spark discharge technique; nanoparticles; chemical engineering; kemiteknik; Technology and Engineering;

    Sammanfattning : Establishing a technically practical method to generate representative model catalysts for the use in characterizations and testing prior to catalyst implementation in chemical process units would allow for a more sophisticated understanding of the underlying catalytic mechanisms. As a step towards establishing such a method, generating non-agglomerated, spherical NiMo nanoparticles, with diameters below 25 nm and atomic composition of maximum 30 at% Ni with Mo (maximum 3:7 Ni:Mo atomic ratio), for application as model hydrotreating catalysts, was addressed. LÄS MER

  4. 3. Prediction and analysis of model’s parameters of Li-ion battery cells

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för tillämpad signalbehandling

    Författare :Ali Dareini; [2016]
    Nyckelord :Lithium-ion battery; equivalent circuit model; electrochemical model; AutoLion software; predicting and analysis of parameters; key parameters; tuning the parameter; knowledge-based data; physical and chemical measurements; physical tests; EIG C20;

    Sammanfattning : Lithium-ion batteries are complex systems and making a simulation model of them is always challenging. A method for producing an accurate model with high capabilities for predicting the behavior of the battery in a time and cost efficient way is desired in this field of work. LÄS MER

  5. 4. Enhanced dielectric AC breakdown strength of polyethylene using voltage stabilizing additives

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Klas Esbo; [2016]
    Nyckelord :cross-linked polyethylene; LDPE; low density polyethylene; polyethylene; voltage stabilizing additives; fast avalanche breakdown; dielectrical breakdown strength; High voltage cable; HVAC; XLPE; Weibull distribution; AC breakdown; materials chemistry; materialkemi; Technology and Engineering; Chemistry;

    Sammanfattning : There is currently a need to increase the voltage level in high voltage transmission and distribution systems in order to transmit power in a more efficient way. However, the insulation of the conductor in high voltage alternating current (HVAC) cables needs to be improved in order to withstand these high voltages. LÄS MER

  7. 5. Modeling of IGBT Modules with Parasitics Elements Evaluation

    Magister-uppsats, Sektionen för Informationsvetenskap, Data– och Elektroteknik (IDE)

    Författare :Zahra Norouzian; [2013]
    Nyckelord :IGBT; Module; Parasitics;

    Sammanfattning : The goal of this report is the development of a PSpice based modeling platform for the evaluation of power IGBT modules to be used in HVDC and FACTS applications. The use of simulation tools is of great value in the process of developing new power electronic devices and new converter topologies. LÄS MER