Sökning: "harmonic inductance"

Hittade 4 avhandlingar innehållade orden harmonic inductance.

  1. 1. Analysis and Verification of a Slotless Permanent Magnet Motor for High Speed Applications

    Författare :Jörgen Engström; KTH; []
    Nyckelord :slotless motor; airgap winding; permanent magnets; high speed; axial leakage; rotor sleeve losses; harmonic inductance; bearing loss; windage loss; end shield loss;

    Sammanfattning : .... LÄS MER

  3. 2. Multilevel three-phase dual active bridge dc-dc converters - A study on converter modulation, capacitive energy requirement, ZVS boundaries, MFT's winding connections, and core losses

    Författare :Babak Alikhanzadehalamdari; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high-voltage power converters; dual active bridge; harmonic analysis; three-phase system; medium-frequency transformer; capacitor sizing; multilevel converters; high power-density systems; transformer winding connection; core loss modeling; dc collector network; soft-switching converters;

    Sammanfattning : The collection and transmission of power from offshore wind turbines using dc have advantages over the ac system. One of the enabling technologies for deploying dc collection is the dc-dc converter that boosts the dc output from the turbine to the medium-voltage dc level of the collection grid. LÄS MER

  4. 3. On Waveform Distortion in Modern Low-Voltage Installations with Multiple Nonlinear Devices

    Författare :Tatiano Busatto; Math Bollen; Xiongfei Wang; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; power quality; power system harmonics; power electronics; nonlinear systems; Electric Power Engineering; Elkraftteknik;

    Sammanfattning : The continuing society quest for more comfort combined with the need to minimize global environmental impacts is constantly introducing new technologies into our daily lives. Among the recent developments, the advances in energy-efficient lighting and renewable energy technologies have enabled a maturity level in cleaner electricity production and efficient use of energy. LÄS MER

  5. 4. Heterostructure Barrier Varactors for High Efficiency Frequency Multipliers

    Författare :Lars Dillner; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; frequency multiplier; Heterostructure Barrier Varactor HBV ; millimeter wave; submillimeter wave; power source;

    Sammanfattning : This thesis describes the Heterostructure Barrier Varactor (HBV) and its application in frequency multipliers. Different HBV materials, fabrication processes, and device models are presented. The aim of this work is to improve the efficiency of HBV frequency multipliers. LÄS MER