Search for dissertations about: "dc-dc power converter"

Showing result 21 - 25 of 33 swedish dissertations containing the words dc-dc power converter.

  2. 21. Multilevel Inverter for Wave Power Conversion

    Author : Remya Krishna; Uppsala universitet; []
    Keywords : ;

    Abstract : This thesis deals with the electrical system analysis of a Wave Energy Converter (WEC) for the objective of grid connection. The Linear Permanent Magnet Generator (LPMG) is modeled and validated with experimental results. The comparison studies establish that this model is useful for the subsequent system modeling and performance analysis. READ MORE

  4. 22. Cascaded Converters with Gate-Commutated Thyristors : Experimental Verification and Auxiliary Power Supply

    Author : Tomas Modeer; Hans-Peter Nee; Staffan Norrga; Dragan Jovcic; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis describes an effort to investigate the use of gate-commutated thyristors(GCTs) in cascaded converters. Cascaded converters, such as modularmultilevel converters (M2Cs) and cascaded H-bridge converters (CHBs), haveproved to be especially suitable in high-voltage, high-power applications. READ MORE

  5. 23. High Temperature Bipolar SiC Power Integrated Circuits

    Author : Saleh Kargarrazi; Carl-Mikael Zetterling; Ana Rusu; Shankar Narayanan Ekkanath Madathil; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : In the recent decade, integrated electronics in wide bandgap semiconductor technologies such as Gallium Nitride (GaN) and Silicon Carbide (SiC) have been shown to be viable candidates in extreme environments (e.g high-temperature and high radiation). Such electronics have applications in down-hole drilling, automobile-, air- and space- industries. READ MORE

  6. 24. Power Control Systems for PM Synchronous Flywheel Alternators

    Author : Janaína Goncalves de Oliveira; Uppsala universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Flywheel systems are attractive in hybrid and electric vehicles, being able to handle the large power when accelerating and for regenerative braking. The combination of a flywheel device with a battery source has several advantages, such as higher peak power capacity, higher energy density and a decrease of the number of charging/discharging cycles in the battery. READ MORE

  7. 25. Grid Connected Three-Level Converters : Studies for Wave Energy Conversion

    Author : Remya Krishna; Mats Leijon; Karin Thorburn; Uppsala universitet; []
    Keywords : Wave energy; power converters; control strategies; grid connection; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

    Abstract : This thesis presents an electrical system analysis of a wave energy converter (WEC) for the objective of grid connection. To transfer the enormous amount of power from waves to the load centers, efficient power electronic systems are essential. READ MORE