Sökning: "systemspänning"

Hittade 4 uppsatser innehållade ordet systemspänning.

  1. 1. Design of a Sustainable Energy System for a Community Center in rural Mozambique : A Minor Field Study in Mozambique

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Emilia Säll Magnusson; Melchior Hahn; [2023]
    Nyckelord :Sustainable energy system; Solar PV system; off-grid; Community center; Rural Mozambique; Minor Field Study; Project Vita; Hållbart energisystem; Solcellssystem; off-grid; kultur- och fritidscentrum; Mozambiques landsbygd; Minor Field Study; Project Vita;

    Sammanfattning : Access to energy is an important part in the development of most countries and societies, linked to both social and economic growth. Nevertheless, 70% of the population in sub-Saharan Africa does not have access to electricity, which brings consequences to several of these areas. LÄS MER

  3. 2. Efficiency Comparison between a Two-level and an NPC Inverter for Automotive Application

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

    Författare :Simon Schneider; [2022]
    Nyckelord :NPC; 800 V; Efficiency; Automotive; Comparison; SiC; NPC; 800 V; Effektivitet; Bil; Jämförelse; SiC;

    Sammanfattning : De flesta nuvarande elfordon drivs med en systemspänning på 400V. En ökning av denna spänning skulle dock bland annat kunna möjliggöra en kortare laddningstid för fordonets batteri. Den högre systemspänningen medför ett antal utmaningar, varav en är att öka spänningsblockeringsförmågan hos spänningsomvandlarens transistorer. LÄS MER

  4. 3. Dielectrics calculation of on-load tap-changer VUCL

    M1-uppsats, KTH/Hållbar produktionsutveckling (ML)

    Författare :Seywan Karimi; [2021]
    Nyckelord :Dielectrics; tap-changer; transformer; lightning impulse levels LI ; system voltage; direct current; resistor; and epoxy material; Dielektriska; lindnings kopplar; transformator; blixtimpuls nivåer LI ; systemspänning; likström; motstånds; epoximateria;

    Sammanfattning : This is a bachelor's thesis in Mechanical engineering. The main topic of the thesis is the electrical calculation of the tap changer's shield. Although there are many kinds of tap-changers, this study focuses on VUCL models. The theoretical background of the thesis is that the new shield is suitable and useable in all VUCL models. LÄS MER

  5. 4. Evaluation of IEC 61175 for semanticinterpretation in OPAL-RT referencedistribution network and Jess-OPC

    Master-uppsats, KTH/Industriella informations- och styrsystem

    Författare :CLIPTON CHOWDHURY; [2015]
    Nyckelord :;

    Sammanfattning : In the past few decades the electric power system has seen tremendous growth in termstechnology such as integration of DG and advanced power electronics devices. Such developmentsmainly include renewable energy, increased use of HVDC transmission, state ofthe art communication systems and adaptation of information modeling standards appliedto power systems. LÄS MER