Sökning: "low EMI"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden low EMI.

  1. 1. Implementation and Characterisation Testing of a PCDU for Nanosatellites

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Spyridon Gouvalas; [2023]
    Nyckelord :Electrical engineering; Testing; PCDU; Nanosatelllites; EPS; Power Management; Software Development; Hardware Development;

    Sammanfattning : Satellite power management systems play a crucial role in ensuring the operational success andlongevity of satellite missions. As satellites operate in the harsh environment of space, efficient powermanagement is essential to maximize energy utilization, maintain stability, and extend mission lifespans. LÄS MER

  3. 2. Closed-loop control and data- recording of a modular-multilevel converter (MMC)

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

    Författare :Longgang Su; [2022]
    Nyckelord :Modular multilevel converters MMCs ; filed programmable gate array FPGA ; direct memory access DMA ; energy closed-loop control; data recording; ethernet.; Modulära multilevel-omvandlare MMC ; filed programmeable gate array FPGA ; direkt minnesåtkomst DMA ; energistyrning med sluten slinga; datainspelning; ethernet.;

    Sammanfattning : Modular multilevel converters (MMCs) are the preferred converter solution in flexible ac transmission systems (FACTS) and high-voltage direct current (HVDC) applications. This is due to the high quality of the voltage and current signals, lower overall losses, and fewer problems with switching-related EMI. LÄS MER

  4. 3. Isolated Single-Stage Interleave Resonant PFC Rectifier with Active and Novel Passive Output Ripple Cancellation Circuit

    Master-uppsats, Uppsala universitet/Institutionen för elektroteknik

    Författare :Abidemi Oluremilekun Eleyele; [2020]
    Nyckelord :single-stage AC DC converter; bridgeless power factor correction PFC rectifier; active passive ripple cancellation; zero current switching ZCS ; zero voltage switching ZVS ; Electric vehicle EV charger; LLC;

    Sammanfattning : With the increasing demand for fast, cheaper, and efficient power converters come the need for a single-stage power factor correction (PFC) converter. Various single-stage PFC converter proposed in the literature has the drawback of high DC bus voltage at the input side and together with the shift to wide bandgap switches like GaN drives the converter cost higher. LÄS MER

  5. 4. Power cables in battery electric vehicles used in underground mining : Analysis of electromagnetic dynamics in high-power cables and development of application-specific design strategies for reduction of EMI

    Master-uppsats, Uppsala universitet/Elektricitetslära

    Författare :Chisom Miriam Ekweoba; [2019]
    Nyckelord :;

    Sammanfattning : The electrification of the automotive industry is growing in popularity, considering the environmental impacts of the conventional diesel-powered automobile. However, from the electromagnetic compatibility (EMC) viewpoint, it is observed that the use of variable-frequency drives (VFD) and relatively high-power cables to propel electrical motors has led to a considerable rise in electromagnetic interference (EMI) within and outside the machine. LÄS MER

  7. 5. Sociala skillnader i studentmobilitet: En studie om selektionsmekanismer i Finland, Norge och Sverige

    Kandidat-uppsats, Göteborgs universitet/Statsvetenskapliga institutionen

    Författare :Felicia Rhedin; [2018-02-21]
    Nyckelord :social selection; social differences; student mobility; studies abroad; Nordic; Scandinavia; Finland; Norway; Sweden; EMI; LCP; selektionsmekanismer; social sortering; sociala skillnader; studentmobilitet; utlandsstudier; Norden; Skandinavien; Norge; Sverige;

    Sammanfattning : Although a broad and equal participation in student mobility is an important objective for Erasmus and other mobility initiatives, studies have shown a prevailing underrepresentation of students from less privileged backgrounds. Previous research has mainly focused on describing, rather than explaining, these social differences and so far no studies have been dedicated to look at the particular case of the Nordic countries. LÄS MER