Sökning: "shunt"

Visar resultat 6 - 10 av 72 uppsatser innehållade ordet shunt.

  1. 6. Electrical Impedance Profiling of Plants, Coffee and TREO

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Signaler och system

    Författare :Adam Bushara; Sebastian Daniel Clyne; [2022]
    Nyckelord :;

    Sammanfattning :  The aim of the project was to investigate the possibility of using low-cost hardware to monitor plant health, measure the impedance of water containing dissolved substances at different concentrations, and observe how the plant impedance is affected compared to auxiliary measurements of soil moisture, ambient light, humidity, and temperature.To measure impedance, we used electrical impedance spectroscopy which gives the impedanceacross a spectrum of frequencies. LÄS MER

  3. 7. Short-circuit current detection in electric vehicles

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

    Författare :Max Torbjörner; [2022]
    Nyckelord :Electric vehicles; Current measurement; Short-circuit; BEV Trucks; BJB;

    Sammanfattning : In recent years the vehicle industries have been making much efforts to reduce the environmentalimpact by switching from the traditional combustion engine to electrification with battery driven electricvehicles. Producing electric trucks requires more batteries and operates at a higher voltage and currentthan commercial electric cars. LÄS MER

  4. 8. E-Band SPDT RF Switch for a Class F PA in III-V Nanowire MOSFET Technology

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Rungeng Xu; [2022]
    Nyckelord :E-band; III-V Nanowire MOSFET; RF Switch; Class-F PA; Technology and Engineering;

    Sammanfattning : This project designs an RF switch operating in E-band to provide a transmit path from a Class-F power amplifier (PA). The basic RF switch is based on the single-pole double-throw (SPDT) topology using shunt transistor switches and two λ/4 transmission line. LÄS MER

  5. 9. Voltage Stability and Reactive Power - Introduction of Intermittent Renewable Energy Sources in a Power System

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

    Författare :Erik Hagström; Tobias Jansson; [2022]
    Nyckelord :Voltage Stability; Reactive Power; Renewable Energy; Wind Power; Power Flow Analysis; MATPOWER;

    Sammanfattning : The electricity demand increases rapidly, and in order to mitigate climate change the power production needs to be renewable and free from green house gas emissions. When solar and wind power are introduced in the system, voltage instability might become a problem. LÄS MER

  7. 10. A DSO-driven evaluation of a CIM profile : Development of a CIM profile based on use cases related to monitoring Vattenfalls low voltage network

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för elektroteknik

    Författare :Louise Persson; [2022]
    Nyckelord :;

    Sammanfattning : The transition to more renewable energy sources places high demands on the power systems to be more flexible, and makes it grow in complexity. This has led to a growing need of a common format or language for data exchange in power systems because of the growing number of interconnected networks operated by different companies and utilities that need to communicate on a daily basis. LÄS MER