AC Loss Calculation of High Temperature Superconducting Coils Based on a Surrogate Model

IF 1.7 3区 物理与天体物理 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Linjie Zhou;Yihan Wang;Qi Yuan;Xiaowei Song;Liang Li;Qiuliang Wang
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引用次数: 0

Abstract

AC losses have a significant impact on the design and operation of superconducting power devices. Therefore, fast and accurate estimation of AC losses is essential. However, calculating AC losses in high-temperature superconducting (HTS) coils often requires considerable computational resources. To address this, a time-series surrogate model based on a convolutional neural network (CNN) is proposed. The model is trained using sample points X (e.g., HTS coil parameters and current profiles) and corresponding AC loss responses Y obtained from finite element analysis (FEA). It integrates a self-attention hybrid convolution module and a current change perception mechanism to extract deep temporal features, and employs an adaptive threshold to enhance open-set recognition and prediction robustness. The model's accuracy is validated against COMSOL simulation results, demonstrating that it significantly improves computational efficiency while maintaining high prediction accuracy.
基于代理模型的高温超导线圈交流损耗计算
交流损耗对超导电力器件的设计和运行有着重要的影响。因此,快速准确地估计交流损耗是必不可少的。然而,计算高温超导线圈中的交流损耗通常需要大量的计算资源。为了解决这个问题,提出了一种基于卷积神经网络(CNN)的时间序列代理模型。该模型使用样本点X(例如,高温超导线圈参数和电流分布)和由有限元分析(FEA)获得的相应交流损耗响应Y进行训练。该算法集成了自关注混合卷积模块和当前变化感知机制来提取深层时间特征,并采用自适应阈值来增强开放集识别和预测的鲁棒性。通过COMSOL仿真结果验证了该模型的准确性,表明该模型在保持较高预测精度的同时显著提高了计算效率。
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来源期刊
IEEE Transactions on Applied Superconductivity
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.
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