Sökning: "Likström"

Visar resultat 1 - 5 av 30 uppsatser innehållade ordet Likström.

  1. 1. Development of an on-board charger model for real time simulation

    Master-uppsats, KTH/Väg- och spårfordon samt konceptuell fordonsdesign

    Författare :Neil Wagle; [2022]
    Nyckelord :On board charger OBC ; Hardware in loop HIL ; Precharge; Power factor correction; Electric vehicle EV charging; Vehicle to grid V2G service; Omboardladdare OBC ; Hardware in loop HIL ; Precharge; Effektfaktorkorrigering; Laddning av elfordon; Tjänst för fordon till elnät;

    Sammanfattning : Electrification of vehicles is now one of the top priorities of automotive manufacturers in orderto comply with the sustainability goals and standards set by the United Nations. One of thedisadvantages faced by electric vehicles is a longer time required for charging the vehicles ascompared to refuelling a conventional vehicle. LÄS MER

  3. 2. Lågspänt likströmsmikronät för effektivisering av solcellsanläggningar

    Uppsats för yrkesexamina på grundnivå, Högskolan i Halmstad/Akademin för företagande, innovation och hållbarhet

    Författare :Theodor Stellmar; Oskar Engman; [2022]
    Nyckelord :solcell; mikonät; likström;

    Sammanfattning : The Swedish energy supply has gone from dispatchable energy sources to more intermittent energy. The conversion to renewable sources such as solar and wind power, also the increasing demand caused by electrification of cars creates increasing challenges on today's electricity grid. LÄS MER

  4. 3. Towards a Cooper pair splitter in InAs nanowires with crystal-phase defined quantum dots

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Lunds Tekniska Högskola

    Författare :Louise Olausson; [2022]
    Nyckelord :Cooper pair splitter; quantum dot; nanowire; superconductivity; InAs; crystal-phase; Physics and Astronomy;

    Sammanfattning : Cooper pair splitting (CPS) is a process in which the two spin-entangled electrons of a Cooper pair in a superconductor are split into two spatially separated electrons. If the separated electrons are still entangled, CPS can be studied to increase the knowledge of non-locality in quantum systems. LÄS MER

  5. 4. Magnetic and Dielectric Design of Auxiliary Power Supply for HVDC Applications : A high-frequency transformer with high power transfer capability and high voltage electrical insulation

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

    Författare :Henrik Johansson; [2022]
    Nyckelord :Auxiliary Power Supply; HVDC; Inductive Power Supply; High Voltage Insulation; High-Frequency Transformer; Hjälpkraftsförsörjning; HVDC; Induktiv Kraftförsörjning; Högspänningsisolation; Högfrekvenstransformator;

    Sammanfattning : It is anticipated that massive amounts of energy will be transferred long distances via High-Voltage Direct Current (HVDC) links in the future and the prospect of having meshed HVDC grids is envisioned, for example the European super grid. Such a power system would benefit greatly if HVDC circuit breakers could reliably clear faults within the HVDC network. LÄS MER

  7. 5. Parameter Study of Arc Squeezing DC Breaker : The impact of the geometry on counter force, pressure, and arc voltage

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

    Författare :Johanna Olsson; [2022]
    Nyckelord :Arc squeezing; DC breaker; Polymer ablation; Pressure measurement; Ljusbågssläckning; DC brytare; Polymerablation; Tryckmätning;

    Sammanfattning : The sustainable future in our already electrified world includes solar power generation, battery storage, and electric vehicles all which requires DC systems. DC breakers play a key role in operation and protection within the DC system. LÄS MER