Sökning: "direct-driven generator"

Visar resultat 1 - 5 av 15 avhandlingar innehållade orden direct-driven generator.

  1. 1. On Design and Analysis of a Novel Transverse Flux Generator for Direct-driven Wind Application

    Författare :Dmitry Svechkarenko; Chandur Sadarangani; Zi-Qiang Zhu; KTH; []
    Nyckelord :Transverse flux machines; permanent magnet machines; finite element analysis; direct-driven generator; offshore wind turbine; renewable energy;

    Sammanfattning : This thesis deals with the analysis of a permanent magnet synchronous generator suited for direct-drivenwind turbines inmegawatt class. The higher specific torque and power density of a transverse flux permanent magnet machine in comparison to conventional radial-flux machines make it a promising solution for direct-driven wind turbine generators. LÄS MER

  3. 2. Direct Driven Generators for Vertical Axis Wind Turbines

    Författare :Sandra Eriksson; Hans Bernhoff; Mats Leijon; Jörgen Blennow; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; synchronous generator; wind power; vertical axis wind turbine; simulations; experiments; finite element method; Engineering physics; Teknisk fysik;

    Sammanfattning : Wind power is a renewable energy source that is increasingly used all over the world. Most wind turbines have a horizontal axis of rotation but a few have a vertical axis of rotation. The concept presented in this thesis is a straight-bladed vertical axis wind turbine with a direct driven cable-wound permanent magnet synchronous generator. LÄS MER

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

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

    Sammanfattning : 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. LÄS MER

  5. 4. On analytical modeling and design of a novel transverse flux generator for offshore wind turbines

    Författare :Dmitry Svechkarenko; Chandur Sadarangani; Waqas Arshad; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Transverse flux machines; permanent magnet machines; direct-driven gen- erator; offshore wind turbine; renewable energy; global warming; Electrical engineering; Elektroteknik;

    Sammanfattning : The object of this thesis is to develop a cost effective direct-driven wind generator suited for offshore wind turbines. As the generator price is a complicated function dependent on many parameters, the emphasis is mainly put on reduction of the weight of active materials, such as copper, laminated steel, permanent magnets, and electrical insulation. LÄS MER

  7. 5. Electrical Systems for Wave Energy Conversion

    Författare :Cecilia Boström; Mats Leijon; Daniel Karlsson; Uppsala universitet; []
    Nyckelord :Wave power; direct driven linear generators; electrical systems; non-linear loads; TECHNOLOGY; TEKNIKVETENSKAP; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Wave energy is a renewable energy source with a large potential to contribute to the world's electricity production. There exist several technologies on how to convert the energy in the ocean waves into electric energy. The wave energy converter (WEC) presented in this thesis is based on a linear synchronous generator. LÄS MER