使用二维均质化方法计算 HTS 同步冷凝器转子的交流损耗并进行验证

IF 1.3 3区 物理与天体物理 Q4 PHYSICS, APPLIED Physica C-superconductivity and Its Applications Pub Date : 2024-09-07 DOI:10.1016/j.physc.2024.1354578
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引用次数: 0

摘要

与低温超导体相比,第二代高温超导材料具有更高的电流密度和温度裕度,为超导冷凝器向大容量、轻量化方向发展提供了动力。本文针对超导冷凝器转子性能参数优化过程中三维有限元模型计算量大的问题,提出了一种三维到二维的降维简化方法。该方法根据转子磁极的几何特征对磁极进行拆分,建立拆分后磁极各部分的二维简化模型,并利用简化模型计算超导电容器转子励磁过程中的磁场、交流损耗、温度变化等关键物理量。这种方法有效降低了模型的计算复杂度,提高了磁极参数计算和迭代优化的效率。为了验证简化模型电磁计算结果的正确性,将转子磁体模型装配到液氮浴中进行实验,实验结果与计算结果吻合良好。
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Calculation of AC loss using 2D homogenization method for HTS synchronous condenser rotor and validation

Compared with low-temperature superconductors, second-generation high-temperature superconducting materials offer higher current densities and temperature margins, which provide a boost to the development of superconducting condenser towards large capacity and light weight. In this paper, a 3D-to-2D dimensionality reduction and simplification method is proposed to address the problem of massive computation of 3D finite element model during the optimization of superconducting condenser rotor performance parameters. This method splits the pole based on the geometric characteristics of the rotor pole, establishes a 2D simplified model of each part of the pole after splitting, and uses the simplified model to calculate the key physical quantities such as the magnetic field, AC loss, temperature change, etc., during the excitation process of the superconducting condenser rotor. This method effectively reduces the computational complexity of the model and improves the efficiency of the calculation and iterative optimization of the magnet pole parameters. In order to verify the correctness of the electromagnetic calculation results of the simplified model, the rotor magnet model was assembled to carry out experiments in liquid nitrogen bath, and the experimental results were in good agreement with the calculation results.

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来源期刊
CiteScore
2.70
自引率
11.80%
发文量
102
审稿时长
66 days
期刊介绍: Physica C (Superconductivity and its Applications) publishes peer-reviewed papers on novel developments in the field of superconductivity. Topics include discovery of new superconducting materials and elucidation of their mechanisms, physics of vortex matter, enhancement of critical properties of superconductors, identification of novel properties and processing methods that improve their performance and promote new routes to applications of superconductivity. The main goal of the journal is to publish: 1. Papers that substantially increase the understanding of the fundamental aspects and mechanisms of superconductivity and vortex matter through theoretical and experimental methods. 2. Papers that report on novel physical properties and processing of materials that substantially enhance their critical performance. 3. Papers that promote new or improved routes to applications of superconductivity and/or superconducting materials, and proof-of-concept novel proto-type superconducting devices. The editors of the journal will select papers that are well written and based on thorough research that provide truly novel insights.
期刊最新文献
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