Lightweight Design of Fully Superconducting Motors for Electrical Aircraft Propulsion Systems
Lightweight Design of Fully Superconducting Motors for Electrical Aircraft Propulsion Systems
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DOI：
10.1109/tasc.2019.2902323
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发表时间：
2019-08-01
影响因子：
1.8
通讯作者：
Morioka, Noriko
中科院分区：
文献类型：
--
作者：
Terao, Yutaka;Seta, Akihisa;Morioka, Noriko
本文介绍和讨论了全超导电动机（FSCMs）的电力飞机推进系统。FSCM结构有可能达到20 kW/kg以上，这要归功于空芯结构和更高的电流密度线圈，而永磁同步电机达到5 kW/kg。我们设计了3和5兆瓦的FSCM与YBCO场线圈和MgB 2电枢绕组。FSCM的输出密度目标是达到20 kW/kg以上。为了满足输出密度的要求，采用有限元法分析了背铁厚度和漏磁的影响。设计结果表明，3和5 MW电机的输出密度分别达到19.4和25.2 kW/kg。此外，在距离电动机几乎100 mm处的磁通量泄漏为数十mT的量级。
This paper describes and discusses fully superconducting motors (FSCMs) for electrical aircraft propulsion systems. The FSCM structures have a potential to reach over 20 kW/kg, thanks to air cored structure and higher current density coils while permanent magnet synchronous motors reached 5 kW/kg. We designed 3 and 5 MW FSCMs with YBCO field coils and MgB2 armature windings. The FSCM output density is aiming to achieve over 20 kW/kg. To satisfy the output density, we considered back iron thickness and magnetic flux leakage with FEM. The design results show that an output density of the 3 and 5 MW motors reached 19.4 and 25.2 kW/kg, respectively. Also, magnetic flux leakage at a distance of almost 100 mm from the motors was on the order of tens of mT.