Search for dissertations about: "Direct Drive Generator"

Showing result 1 - 5 of 19 swedish dissertations containing the words Direct Drive Generator.

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

    Author : Mikael Eriksson; Mats Leijon; Jan Isberg; Arne Wolfbrandt; Kim Nielsen; Uppsala universitet; []
    Keywords : 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

  4. 2. Design of Direct-driven Permanent-magnet Generators for Wind Turbines

    Author : Anders Grauers; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; optimization; direct drive; synchronous generator; wind turbine; design; low speed; permanent magnet; frequency converter;

    Abstract : This thesis presents an investigation of how a direct-driven wind turbine generator should be designed and how small and efficient such a generator will be. Advantages and disadvantages of various types of direct-driven wind turbine generators are discussed, and a radial-flux permanent-magnet generator connected to a forced-commutated rectifier is chosen for a detailed theoretical investigation. READ MORE

  5. 3. Permanent magnet generator for direct drive wind turbines

    Author : Andreas Solum; Uppsala universitet; []
    Keywords : ;

    Abstract : .... READ MORE

  6. 4. Simulation of Direct Drive Generator for Underwater Power Conversion

    Author : Erik Segergren; Uppsala universitet; []
    Keywords : ;

    Abstract : .... READ MORE

  7. 5. Direct Drive Generator for Renewable Power Conversion from Water Currents

    Author : Erik Segergren; Mats Leijon; Niklas Dahlbäck; Jonny Hyllander; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering physics; Teknisk fysik; Engineering physics; Teknisk fysik;

    Abstract : In this thesis permanent magnet direct drive generator for power conversion from water currents is studied. Water currents as a power source involves a number of constrains as well as possibilities, especially when direct drive and permanent magnets are considered. READ MORE