Sökning: "Linear generators"

Visar resultat 1 - 5 av 52 avhandlingar innehållade orden Linear generators.

  1. 1. Hydromechanical simulations of wave energy conversion : Linear aspects

    Författare :Linnea Sjökvist; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : Hydrodynamic simulations of buoy movement is crucial when designing a point absorbing wave power plant. The wave energy converter (WEC) that is developed in the Lysekil project by Uppsala University is studied in this thesis. LÄS MER

  2. 2. Electromagnetic Analysis of Hydroelectric Generators

    Författare :Martin Ranlöf; Urban Lundin; Georg Traxler-Samek; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Contra-rotating rotors; damping torque; damper winding; finite element method; hydroelectric generators; permeance model; pole shoe shape; rotational losses; single machine infinite bus; slot ripple; synchronizing torque; synchronous machines; voltage waveform.; Engineering physics; Teknisk fysik; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Hydropower maintains its position as the most important source of renewable electric energy in the world. The efficiency of large hydropower plants is unsurpassed, and after more than hundred years of development, the technology is mature and highly reliable. LÄS MER

  3. 3. Automated Production Technologies and Measurement Systems for Ferrite Magnetized Linear Generators

    Författare :Tobias Kamf; Mats Leijon; Jonas Öhr; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; industrial robotics; automation; self-sensing; calibration; ferrite; linear generator; wave energy; offshore; measurements; electronics; kinetic energy storage; reluctance motor; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : The interest in breaking the historical dependence on fossil energy and begin moving towards more renewable energy sources is rising worldwide. This is largely due to uncertainties in the future supply of fossil fuels and the rising concerns about humanity’s role in the currently ongoing climate changes. LÄS MER

  4. 4. Electromagnetic Energy Converters - Rotating Motors and Linear Generators

    Författare :Boel Ekergård; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : This licentiate thesis presents a study of the electromagnetic properties of linear synchronous permanent magnet generators, utilized in wave energy converters, and a two pole permanent magnet motor for an electrical vehicle. Both machine topologies are presented, designed with a numerical simulation tool, based on a model derived from Maxwell’s equations. LÄS MER

  5. 5. A Low-Leakage Linear Transverse-Flux Machine for a Free-Piston Generator

    Författare :Waqas Arshad; KTH; []
    Nyckelord :Free-piston generators; linear machines; transverse-flux machines; hybrid vehicles; electrical machines design;

    Sammanfattning : The presented work is about a new low-leakage lineartransverse-flux electrical machine.The machine is dimensionedfor a free-piston generator. The intended application is inseries-hybrid vehicles. The free-piston generator is anintegration of a free-piston combustion engine with a linearelectrical machine. LÄS MER