Speedy HTS - Midspeed Generator for Wind Turbines with a High-Temperature Superconductor Winding in the Rotor

  • Contact:

    Prof. Dr.-Ing. Marc Hiller
    M.Sc. Nick Thönelt

  • Project Group:

    Power Electronic Systems

  • Funding:

    Federal Ministry for Economic Affairs and Climate Action (BMWK)
    (funding code: 03EE3094C)
    Total project funding: ~ 2 Mio. €

  • Partner:

    Flender GmbH
    Karlsruher Institut für Technologie (KIT), Institut für Technische Physik (ITEP)
    Krämer Energietechnik GmbH & Co. KG
    TU Darmstadt, Institut für Elektrische Energiewandlung (EW)
    Nordex Energy SE & Co. KG, Hamburg (assoziierter Partner)

  • Startdate:


  • Enddate:



As part of the project, an increase in cost and energy efficiency in the generation of renewable energy is being investigated by developing and testing a geared generator for wind turbines with a superconducting rotor. In addition to low material usage, the high power density will enable larger wind turbines with unchanged installation space and transport restrictions. There is no need for permanent magnets. Furthermore, this generator concept allows higher system efficiencies and connection to AC and DC grids via simple rectifiers.


In the project, a midspeed generator for use in wind turbines based on a high-current density technology with copper winding in the stator and with high-temperature superconductor (HTS) technology (second-generation HTS) in the rotor is being developed, designed, manufactured and characterized on a test stand. It should be emphasized that this is a real-size multi-megawatt generator.