Conveners
Wed-Af-Or15 - Rotating Machines I
- Timothy Haugan (U.S. Air Force Research Laboratory)
- Thibault Genestier (GE Power)
High temperature superconductor (HTS) No-insulation (NI) shows a great advantage on enhanced thermal stability. It is promising to improve the stability and safety of HTS machines in electrical aircrafts. A Marie Curie project under Horizon 2020 was started to develop highly safe HTS machines based on NI technique for electrical aircraft. A 2MW HTS synchronous motor prototype was developed...
Electric propulsion systems are attracting much attention as a revolution in the aviation industry. The key components of this revolution are electric motors and generators. However, conventional machines are limited in their rated power, power density, and are not suitable for aircraft because of their size and weight. High-temperature superconducting (HTS) power machines have the advantages...
Future hybrid and all electric aircraft require superconducting electric motors and generators in order to most readily attain power densities above 10 kW/kg, preferably at operating temperatures of >40K. Although the rotor operates at fields of up to 5 T, because it is DC, it can be wound with HTS tapes, for example 2G, that can generate these fields at > 40 K. The stator, however, operates...
Trapped magnetic flux magnets made by stacking high temperature superconducting tape portray an easy assembly with already available materials, high mechanical resistance, provided by the substrate and improved thermal stability, which enhances the trapped flux compared to bulks and allowed reaching the world record of 17.7 T [1]. The presented analysis will expand the work of Patel et al. [2]...
The consortium of the Advanced Superconducting Motor Experimental Demonstrator (ASuMED) will develop, build and test the first fully superconductive motor for aerospace applications. The cryogenic topology of the motor is based on a dual-cryostat concept, which consists of two separate cryostats for the rotor and stator. The rotor cryostat design is particularly challenging because of the...
Low speed direct drive generator has been widely used in the renewable energy power generation, due to the advantage of no gearbox. Our group has studied so-called high-temperature superconducting induction/synchronous motor (HTS-ISM), which has the advantages of high efficiency, high torque density and robustness against overload. Especially, its highly efficient generation characteristics at...
A levitating superconducting bearing assembly is being designed, built and tested to support the rotor of a 10 kW laboratory-scale prototype of a 25,000 rpm superconducting hybrid electric aircraft motor targeting an ultimate power rating of 1 MW. To this end, we have constructed a bearing test rig enabling measurements of the levitation force and stiffness of assemblies of state-of-the-art...
