An Improved Subdomain Model for Optimizing Electromagnetic Performance of AFPM Machines

IF 4.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Industry Applications Pub Date : 2024-08-23 DOI:10.1109/TIA.2024.3448388

Wenming Tong;Deyi Cai;Shengnan Wu

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引用次数: 0

Abstract

Aiming at the problem of the time-consuming calculation of finite element method (FEM) and the poor generalizability of existing subdomain models, an improved subdomain model that takes into account the slot-opening region and introduces periodicity coefficient to reduce the size of the coefficient matrix is proposed in this paper, which can accurately predict the electromagnetic performance of axial flux permanent magnet (AFPM) machines. Meanwhile, the application range of the proposed model for any pole-slot combinations is broadened by studying the distribution law of double-layer fractional slot concentrated windings (FSCW). In addition, an evolutionary algorithm is applied to achieve rapid optimization analysis in the preliminary design, the optimized result shows a significant reduction in cogging torque and an improvement in efficiency. Finally, the reliability and effectiveness of the developed analytical model is validated by both FEM and experiments. Compared with FEM, the calculation time is reduced by 98.92% while guaranteeing computational accuracy, which greatly facilitates the design and optimization of related types of motors.

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优化 AFPM 电机电磁性能的改进型子域模型

针对有限元法（FEM）计算耗时和现有子域模型通用性差的问题，本文提出了一种改进的子域模型，该模型考虑了开槽区域，并引入周期性系数以减小系数矩阵的大小，可以准确预测轴向磁通永磁（AFPM）机器的电磁性能。同时，通过研究双层分数槽集中绕组（FSCW）的分布规律，拓宽了所提模型对任何极槽组合的应用范围。此外，在初步设计中应用进化算法实现了快速优化分析，优化结果显示齿槽转矩显著降低，效率得到提高。最后，有限元分析和实验验证了所开发分析模型的可靠性和有效性。与有限元分析相比，在保证计算精度的前提下，计算时间缩短了 98.92%，极大地方便了相关类型电机的设计和优化。

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 Industry Applications 工程技术-工程：电子与电气

CiteScore

9.90

自引率

9.10%

发文量

747

审稿时长

3.3 months

期刊介绍： The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.