Search for dissertations about: "Generator"

Showing result 1 - 5 of 371 swedish dissertations containing the word Generator.

  1. 1. Modelling and Experimental Verification of Direct Drive Wave Energy Conversion Buoy-Generator Dynamics

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Mikael Eriksson; Uppsala universitet.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Wave energy; Potential wave theory; Linear generator; Simulations; Experiments; Point absorber; FEM; Equivalent circuit theory; Teknisk fysik; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : This thesis is focused on development of models and modelling of a wave energy converter in operation. Through the thesis linear potential wave theory has been used to describe the wave-buoy interaction. The differences lie in the generator models, in the simplest model the generator is a mechanical damper characterized by a damping factor. READ MORE

  2. 2. Wave Energy Conversion Linear Synchronous Permanent Magnet Generator

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Oskar Danielsson; Uppsala universitet.; [2006]
    Keywords : Engineering physics; Finite element method; linear synchronous generator; longitudinal end effect; permanent magnet; point absorber; offshore testing; wave power; Teknisk fysik;

    Abstract : This thesis studies the electric aspects of a linear synchronous permanent magnet generator. The generator is designed for use in a wave energy converter, which determines the fundamental requirements of the generator. The electromagnetic properties of the generator are investigated with a finite element based simulation tool. READ MORE

  3. 3. Vortex generator modeling and its application to optimal control of airflow in inlet

    University dissertation from Stockholm : KTH

    Author : Adam Jirásek; KTH.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vortex generator; vortex generator model; flow control; design and optimization; DOE; CFD; UAV; inlet; S-duct; pressure distortion; pressure recovery; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Abstract : This dissertation deals with the development of the vortex generator model and its use for the optimization study of vortex generator flow control in high-offset-ed inlets. In the first part, the overview of use of vortex generators and their mechanism is outlined. READ MORE

  4. 4. A Generator Perspective on Vertical Axis Wind Turbines

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Fredrik Bülow; Uppsala universitet.; [2013]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; VAWT; PM generator; Wind power; Stator core loss;

    Abstract : The wind energy conversion system considered in this thesis is based on a vertical axis wind turbine with a cable wound direct drive PM generator. Diode rectifiers are used to connect several such units to a single DC-bus and a single inverter controls the power flow from the DC-bus to a utility grid. READ MORE

  5. 5. Electric Power Generation and Storage Using a High Voltage Approach

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Björn Bolund; Uppsala universitet.; [2006]
    Keywords : Engineering physics; Flywheel; Generation; Generator; High Voltage; Power flow; Poynting; Teknisk fysik;

    Abstract : Production and consumption of electricity have grown enormously during the last century. No mater what the primary source of energy is, almost all generation of electricity comes from conversion of a rotational movement in a generator. The aim of this thesis is to see how high voltage technology influence production and storage of electricity. READ MORE