Sökning: "drives"

Visar resultat 11 - 15 av 398 avhandlingar innehållade ordet drives.

  1. 11. Integrated Compact Drives for Electric and Hybrid Electric Vehicles

    Författare :Lebing Jin; Hans-Peter Nee; Staffan Norrga; Oskar Wallmark; Robert Pilawa-Podgurski; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; distributed control; electric vehicle; energy storage capability; integrated motor drive; modular converter; modulation; power losses; stacked polyphase bridges converter; switching frequency; Electrical Engineering; Elektro- och systemteknik;

    Sammanfattning : To develop more competitive solutions, one of the trends in the development of drive systems for electric and hybrid electric vehicles (EVs/HEVs) is to integrate the power electronic converter and the electric motor. This thesis aims to investigate the performance and the operation of modular converters in integrated motor drive systems for EVs/HEVs. LÄS MER

  3. 12. On analysis, control and estimation of variable-speed drives

    Författare :Lennart Harnefors; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 13. What Drives Exports? Empirical Evidence at the Firm Level

    Författare :Viroj Jienwatcharamongkhol; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; firm-level exports; distance effect; import; productivity; innovation;

    Sammanfattning : The aim of this thesis is to the understand how firms engage in exporting, particularly in consideration of three aspects—product type, past trade experience, and investments in innovation activities. It consists of one introductory chapter and three independent papers relating to determinants of firms’ exporting. LÄS MER

  5. 14. Candida albicans adaption to host microenvironments drives immune evasion

    Författare :José Pedro Lopes; Constantin F. Urban; Alistair Brown; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; fungi; candida albicans; neutrophils; mast cells; immune evasion; mycoses; infectious diseases; immunologi; Immunology; Infectious Diseases; infektionssjukdomar; Molecular Immunology; molekylär immunologi;

    Sammanfattning : Immunosuppressed patients are frequently afflicted with severe mycoses caused by opportunistic fungal pathogens. Besides being a commensal colonizing predominantly skin and mucosal surfaces, Candida albicans is the most common human fungal pathogen. LÄS MER

  7. 15. Voltage sag ride-through control of induction motor drives

    Författare :Kai Pietiläinen; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER