Sökning: "ETS"

Visar resultat 16 - 20 av 131 avhandlingar innehållade ordet ETS.

  1. 16. Analysis of an innovative design of an axial flux Torus-machine

    Författare :Maddalena Cirani; KTH; []
    Nyckelord :;

    Sammanfattning : The high compactness of axialflux permanent magnet (AFPM) machines compared with theconventional induction, DC and radial flux permanent magnet(RFPM) machines, renders this machine-topology particularlysuitable to be integrated in a system for hybrid electricvehicles (HEVs). Indeed, due to the limited space inside thevehicle, the considerable reduction in volume and weightoffered by AFPM machines is of major importance. LÄS MER

  3. 17. On small-signal analysis and control of the single- and the dual-active bridge topologies

    Författare :Georgios D. Demetriades; Hans-Peter Nee; Jorma Kyyrä; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electronics; DC-DC converters; Soft-switching; High-frequency; High-power; Bi-directional; Single-Active Bridge; Elektronik; Electronics; Elektronik;

    Sammanfattning : High-frequency dc-dc converters are nowadays widely used in a diversity of power electronic applications. High operating frequencies entail a reduction in size of the passive components, such as inductors, capacitors and power transformers. LÄS MER

  4. 18. Ägande & värde av utsläppsrätter och andra liknande handelsobjekt : en sakrättslig, redovisningsrättslig och skatterättslig studie

    Författare :Emil Elgebrant; Göran Millqvist; Jesper Öberg; Stefan Lindskog; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; emission allowances; EU ETS; electricity certificates; ownership; insolvency; security; income tax; VAT; interdisciplinary; utsläppsrätter; elcertifikat; äganderätt; obestånd; säkerhetsrätt; inkomstskatt; mervärdesskatt; interdisciplinär; Private Law; civilrätt;

    Sammanfattning : The objective of the dissertation is to examine national legal issues arising with the enactment of emissions allowances, electricity certificates and other similar trading objects. Several of the issues identified in this dissertation have their origins in the same problems that arose with the enactment of the legislation regarding promissory notes in the 1910’s and the legislation concerning the digitalization/dematerialization of financial instruments in the 1980’s. LÄS MER

  5. 19. Feasibility of HVDC for city infeed

    Författare :Paulo Fischer de Toledo; KTH; []
    Nyckelord :;

    Sammanfattning : It is well recognized that direct current and direct voltageoffer special advantages for both land and sea cable systems,both with regard to power transmission capability, losses, aswell as possible transmission length due to no capacitivecurrents. As cable systems were used very early in largecities, one of the first applications considered for HVDC wasto use it for city infeed and some schemes were also built. LÄS MER

  7. 20. Partial discharges in cylindrical cavities at variable frequency of the applied voltage

    Författare :Cecilia Forssén; Roland Eriksson; Ron Brammer; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electronic structure; Elektronstruktur;

    Sammanfattning : Measurements of partial discharges are commonly used to diagnose the insulation system in high voltage components. Traditionally a single xed frequency of the applied voltage is used for such measurements as in the Phase Resolved Partial Discharge Analysis (PRPDA) technique. LÄS MER