This article presents a novel analysis on a new DC-Excited Flux-Switching Machine (DC-FSM) for Ground Power Unit (GPU) application. The performance of machine under different structures can be studied by a flexible Magnetic Equivalent Circuit (MEC), where the core non-linearity can be fixed on the material B-H curve. The model accuracy can also be adjusted arbitrary by determining the number of proposed MEC elements (flux tubes) for a given structure. The performance analysis of two sample DC-FSMs as two high-frequency 120 V generators is performed by the proposed MEC and validated by 2D and 3D FEM based simulations. The obtained results show a very good improvement in processing time with valuable accuracy. In general, introducing a new DC-FSM for the GPU application and analyzing its performance by proposing a modified MEC approach are the paper novelties which are studied in this work. Since the suggested MEC is more flexible than FEM, it is recommended for designing, modeling, and optimization purposes.

中文翻译：

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一种新型直流励磁磁通开关机的改进 MEC 方法在地面动力装置应用中的新分析

本文对用于地面电源单元 (GPU) 应用的新型直流励磁磁通开关机 (DC-FSM) 进行了新颖的分析。可以通过柔性磁等效电路（MEC）来研究不同结构下机器的性能，其中磁芯非线性可以固定在材料 BH 曲线上。通过确定给定结构的建议 MEC 元件（通量管）的数量，还可以任意调整模型精度。两个样本 DC-FSM 作为两个高频 120 V 发电机的性能分析由提议的 MEC 执行，并通过基于 2D 和 3D 的 FEM 模拟进行验证。获得的结果显示处理时间得到了非常好的改进，并且具有宝贵的准确性。一般来说，为 GPU 应用引入新的 DC-FSM 并通过提出改进的 MEC 方法分析其性能是本文研究的新颖之处。由于建议的 MEC 比 FEM 更灵活，因此建议用于设计、建模和优化目的。