Coupled Problem Study with Structural Analysis Considering Barrier Filling of PMa-SynRM for Railway Vehicle

IF 1.6 4区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Seung-Gu Kang, Do Hyun Kang, Hyung-Woo Kim, Seok-Won Jung, Jin Hwan Lee, Sang-Yong Jung
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Abstract

This paper investigates the structural-electromagnetic coupled problem of a permanent magnet assisted-synchronous reluctance motor (PMa-SynRM) for railway vehicles considering the barrier filling. The PMa-SynRM is suitable as a traction motor for railway vehicles but is vulnerable to the structural stability of the rotor under centrifugal force. Therefore, the structural characteristics of the PMa-SynRM should be considered, and the structural influences on the electromagnetic performance are also important based on the stress-dependent properties of the electrical steel core. To improve the structural stability, the concept of barrier filling is proposed, which involves inserting a substance into the magnetic flux barrier region of the PMa-SynRM and balancing the loads in the rotor core. The structural analysis results with the barrier fillings are compared for a wide range of their physical properties. We input stress and strain data by element into the rotor electrical steel core of the electromagnetic model, which consists of the identical mesh as the rotor structural analysis results and set conditions to reflect the stress-dependent B-H and iron loss data to analyze the electromagnetic performance including coupled effects. Finally, the best filling substance is derived and applied based on the previous structural analysis results, clarifying the improvement in the structural and electromagnetic characteristics.

Abstract Image

考虑到用于轨道车辆的 PMa-SynRM 填充屏障的结构分析耦合问题研究
本文研究了铁路车辆用永磁辅助同步磁阻电机(PMa-SynRM)的结构-电磁耦合问题。永磁同步磁阻电机适用于铁路车辆的牵引电机,但在离心力作用下转子的结构稳定性容易受到影响。因此,应考虑 PMa-SynRM 的结构特性,而且基于电工钢芯的应力相关特性,结构对电磁性能的影响也很重要。为了提高结构稳定性,我们提出了屏障填充的概念,即在永磁同步磁共振的磁通屏障区域插入一种物质,以平衡转子铁芯中的负载。我们比较了屏障填充物在各种物理特性下的结构分析结果。我们将应力和应变数据按元素输入电磁模型的转子电气钢芯,该模型由与转子结构分析结果相同的网格组成,并设置条件以反映与应力相关的 B-H 和铁损数据,从而分析包括耦合效应在内的电磁性能。最后,根据之前的结构分析结果,得出并应用了最佳填充物质,明确了结构和电磁特性的改进。
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
Journal of Electrical Engineering & Technology
Journal of Electrical Engineering & Technology ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
4.00
自引率
15.80%
发文量
321
审稿时长
3.8 months
期刊介绍: ournal of Electrical Engineering and Technology (JEET), which is the official publication of the Korean Institute of Electrical Engineers (KIEE) being published bimonthly, released the first issue in March 2006.The journal is open to submission from scholars and experts in the wide areas of electrical engineering technologies. The scope of the journal includes all issues in the field of Electrical Engineering and Technology. Included are techniques for electrical power engineering, electrical machinery and energy conversion systems, electrophysics and applications, information and controls.
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