Critical Design Problems and Possible Solutions to a Superconducting Squirrel-Cage Induction Machine: An Electrical Machines’ Expert Point-of-View

IF 1.8 3区物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Applied Superconductivity Pub Date : 2026-08-01 Epub Date: 2026-01-16 DOI:10.1109/TASC.2026.3653358

João F. P. Fernandes;Fredemar Rüncos;Fábio N. R. Yamanaka;P. J. Costa Branco

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Abstract

Induction machines, known for their robustness and low cost, remain underexplored with superconductors. One promising solution is using High-Temperature Superconducting (HTS) tapes or bars in the rotor cage, resulting in induction-synchronous machines. However, this solution still has limited magnetic flux density due to the iron core saturation and requires rotating cryostats. An alternative solution is using HTS stator windings and air-core designs, which enable a static cryostat and higher magnetic flux densities. We analyze the design of different topologies of induction machines with air-core and limited air-core and HTS only in the stator windings, enabling the use of a static cryostat in the stator. Using a 50 kW reference machine, the performance of air-core, limited air-core, and iron-core HTS topologies is evaluated. These are analyzed via finite-element calibrated models for the machine performance and estimation of AC HTS tape losses. Findings revealed that, besides the AC losses, reactive power also plays a crucial role. The best configuration achieved 635 kW, 95.3 % efficiency, and 823 kvar.

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超导鼠笼式感应电机的关键设计问题和可能的解决方案：电机专家的观点

感应电机以其坚固耐用和低成本而闻名，但在超导体方面仍未得到充分开发。一个有希望的解决方案是在转子笼中使用高温超导（HTS）带或棒，从而产生感应同步电机。然而，由于铁芯饱和，这种解决方案仍然具有有限的磁通密度，并且需要旋转低温恒温器。另一种解决方案是使用高温超导定子绕组和空芯设计，这可以实现静态低温恒温器和更高的磁通密度。我们分析了具有空芯和有限空芯的感应电机的不同拓扑设计，并且仅在定子绕组中使用高温超导，从而使定子中使用静态低温恒温器。使用50kw的参考机器，对空芯、有限空芯和铁芯HTS拓扑的性能进行了评估。通过机器性能的有限元校准模型和交流高温超导磁带损耗的估计来分析这些。研究结果表明，除了交流损耗外，无功功率也起着至关重要的作用。最佳配置达到635 kW， 95.3%的效率和823 kvar。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Applied Superconductivity 工程技术-工程：电子与电气

CiteScore

3.50

自引率

33.30%

发文量

650

审稿时长

2.3 months

期刊介绍： IEEE Transactions on Applied Superconductivity (TAS) contains articles on the applications of superconductivity and other relevant technology. Electronic applications include analog and digital circuits employing thin films and active devices such as Josephson junctions. Large scale applications include magnets for power applications such as motors and generators, for magnetic resonance, for accelerators, and cable applications such as power transmission.