Calculation, Design, and Winding Preliminary Tests of 90-kW HTS Machine for Small-Scale Demonstrator of Generating System for Future Aircraft With Hybrid Propulsion System

Ivanov, Nikolay; Журавлев, С. В.; Zdorova, M. V.; Широков, А. А.; Zanegin, Sergey; Merkushov, V.; Suhanov, A.

doi:10.1109/tasc.2022.3228704

Cited by 4 publications

(1 citation statement)

References 15 publications

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“…The groove width was set to 50 µm, and the reduction in tape width due to grooves is taken into account for the critical current. A gradient mesh (see [11]) with 35,25,20,15,15,12, and 10 elements was used for the 2, 4, 6, 8, 10, 15, and 20 filaments, respectively.…”

Section: F Impact Of Filamentizationmentioning

confidence: 99%

Design of a Power-Dense Aviation Motor With a Low-Loss Superconducting Slotted Armature

Mellerud,

Hartmann,

Klop

et al. 2023

IEEE Trans. Appl. Supercond.

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This article describes the design and analysis of a 2.5-MW, 5000-rpm electric motor with a slotted armature employing REBCO high-temperature superconductors (HTS). The alternating current and field in the armature induces AC losses in the superconductors, requiring cryogenic cooling. Therefore, the aim is to design a machine with sufficiently low losses to make this cooling realistic, which simultaneously outperforms the state-of-the-art. The reasoning behind the key design choices is presented before the model used for twodimensional (2-D) finite element analysis (FEA) is described. Then, HTS AC losses are studied with the T-A-formulation, examining the impact of various operating conditions. Aligning the HTS tapes with the field was found to successfully reduce AC losses, while filamentization was only successful for more than 10 filaments. The final design had an active torque density of 50.9 Nm/kg and an estimated efficiency of 99.8% when the HTS are operated at 40 K.

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