Development of fully superconducting 5 MW aviation generator with liquid hydrogen cooling

The use of liquid hydrogen as a fuel will be inevitable in the aviation future. This statement means that manufacturers also implement for cooling all superconducting equipment an electric propulsion system. development fully aircraft is most promising solution this case. Scientists from Department electrical machines and power electronics Moscow institute have conducted calculations theoretical researches critical specific mass-dimensional parameters (MW/ton MW/m3 at 21 K) synchronous generator results are article.
 article discusses 3D finite element modeling (FEM) simulation 5 MW with combined excitation. Superconducting armature axial excitation windings based on second generation high temperature superconductors (HTS-2G) located stator, which makes it possible to contactlessness absence sliding seals. A dry gap reduce gas-dynamic losses increase nominal peripheral speed rotor. coolant significantly linear load generator, current densities cross-sectional area coils, make place them individual cryostats Individual allow remove heat release magnetic cryogenic zone consumption refrigerant. For purpose internal redundancy HTS machine has complete set reserve winding made ultrapure aluminum, cooled by hydrogen. If coils get out stand, provide 15 % standby