Sökning: "Sonja Lundmark"

Hittade 3 avhandlingar innehållade orden Sonja Lundmark.

  1. 1. Application of 3-D Computation of Magnetic Fields to the Design of Claw-Pole Motors

    Författare :Sonja Lundmark; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The main advantage of claw-pole machines lies in their ability to yield higher torque density values than is obtainable from a conventional machine. However, the high torque density has its price; leakage flux is often high resulting in low power factor and efficiency. LÄS MER

  3. 2. Rare Earth Metal–Free Permanent Magnet Generators

    Författare :Petter Eklund; Sandra Eriksson; Leijon Mats; Sonja Lundmark; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Science with specialization in Science of Electricity; Teknisk fysik med inriktning mot elektricitetslära;

    Sammanfattning : Permanent magnet (PM) synchronous generators (SGs) are used in renewable energy production. The preferred PM material is neodymium-iron-boron (NdFeB), which has very high performance and, until recently, low cost. LÄS MER

  4. 3. Three-Dimensional Computation of Eddy Currents in End regions of Synchronous Generators

    Författare :Marguerite Touma; Sonja Lundmark; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; anisotropic; non-linear; conductor; eddy current; formulation; coil; source; saturated; finite element method; turbogenerator; three-dimensional; potential; laminated; steady state; hydrogenerator; winding;

    Sammanfattning : .... LÄS MER