Design of Bulk HTS Rotating Machine Using Closed-Circuit Magnetization
Design of Bulk HTS Rotating Machine Using Closed-Circuit Magnetization
复制标题
采用闭路磁化的散装高温超导旋转电机设计
DOI：
10.1109/tasc.2019.2902427
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发表时间：
2019
期刊：
影响因子：
--
通讯作者：
Keita Tsuzuki,Yunosuke Suzuki,Sho Yamamura,Shun Kadowaki,Dai Oikawa,Hiroya Andoh,Takehiko Tsukamoto
中科院分区：
文献类型：
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作者：
Yuya Nishida;Takashi Sonoda;Shinsuke Yasukawa;Jonghyun Ahn;Keisuke Watanabe;Kazuo Ishii;Tamaki Ura;Keita Tsuzuki,Yunosuke Suzuki,Sho Yamamura,Shun Kadowaki,Dai Oikawa,Hiroya Andoh,Takehiko Tsukamoto
高温超导体（HTS）可以提供增强的磁通量，使传统的旋转电机更强大，并提供更高的扭矩密度。特别是在使用大块超导体的HTS旋转电机中，由于在钉扎中心处捕获的强磁通量，可以在操作期间不向场磁极供应励磁电流的情况下构造紧凑的旋转电机。然而，与需要产生强磁化的常规磁化系统相关联，存在机械结构及其操作复杂化、实际应用中由于超导特性而导致的俘获磁通密度差异的问题。具体地，为了实现MW级块型超导旋转电机，需要具有高鲁棒性和可操作性的新技术。本课题组设计了一种基于场冷磁化的新型磁化方法--闭路磁化法，用于实现MW级径向间隙型块状超导旋转电机的基本技术。在本文中，我们将报告完成的基本设计的旋转机和评估其有用性的分析结果和前景。在本文中，电磁分析是通过有限元分析的原始设计。为了获得优化的千瓦级设计的模型原型的结果，我们已经评估了两种类型的高温超导转子结构。因此，我们设定了一个目标，即实现比当前超导旋转电机更高的转矩密度。
High-temperature superconductors (HTS) can provide intensified magnetic flux that makes conventional rotating machines more powerful and provides higher torque density. Especially in HTS rotating machines using bulk superconductors, it is possible to construct a compact rotating machine without supplying excitation current to the field poles during operation because of the strong magnetic flux trapped at the pinning center. However, associated with the conventional magnetization system required to produce strong magnetization, there are problems with complication of mechanical structure and its operation, difference in trapped magnetic flux density due to super-conducting characteristics for practical applications. Specifically, a new technology with high robustness and operability is necessary in order to realize MW-class bulk-type superconducting rotating machines. Our group has devised a closed-circuit magnetization method, which is a new magnetization method based on field-cooled magnetization, for elemental technology to realize an MW-class radial-gap-type bulk superconducting rotating machine. In this paper, we will report on the completion of the basic design of the rotating machine and evaluation of its usefulness with analytical results and prospects. In this paper, electromagnetic analysis is performed via a finite element analysis of the original design. In order to obtain the results of the model prototype of the optimized kW-class design, we have evaluated the two types of HTS rotor structures. Accordingly, we have set a goal to achieve higher torque density than the current superconducting rotating machine.