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首页> 外文期刊>IEEE Transactions on Energy Conversion >Design of a Robust Five-Phase Ferrite-Assisted Synchronous Reluctance Motor With Low Demagnetization and Mechanical Deformation
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Design of a Robust Five-Phase Ferrite-Assisted Synchronous Reluctance Motor With Low Demagnetization and Mechanical Deformation

机译：低退磁和机械变形的鲁棒五相铁氧体辅助同步磁阻电动机的设计

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摘要

This study presents the design of a robust five-phase ferrite (Fe) permanent-magnet-assisted synchronous reluctance motor (PMaSynRM) to mitigate two major design challenges: irreversible demagnetization and mechanical deformation. Recently, rare-earth magnet-based five-phase PMaSynRMs have been proposed for vehicular applications due to their better fault tolerance, higher torque density, and low torque ripple compared to their three-phase counterparts. However, rare-earth magnets are expensive and, their supplies were disrupted multiple times in past few years. Therefore, to avoid rare-earth magnets in traction motors, this study proposes a five-phase PMaSynRM with Fe magnet. Special attention is paid to avoid irreversible demagnetization and deformation as these are two major concerns in any Fe-based machine. The rotor structure is uniquely optimized with additional geometrical parameters to reduce the risk of irreversible demagnetization. To increase the structural stability of the rotor, optimal center post and weight reduction notches are adopted. The proposed Fe-based five-phase PMaSynRM has been comparatively studied over a rare-earth magnet-based PMaSynRM. The lumped parameter model and finite element model have been utilized for design optimization and performance analysis. Finally, A 3 kW prototype of the proposed five-phase Fe PMaSynRM has been fabricated, experimentally tested, and compared with the benchmark rare-earth PMaSynRM to validate the proposed design and simulations results.
机译：这项研究提出了一种坚固的五相铁氧体（Fe）永磁辅助同步磁阻电动机（PMaSynRM）的设计，以缓解两个主要的设计挑战：不可逆退磁和机械变形。最近，基于稀土磁体的五相PMaSynRM已被提出用于车辆应用，因为与三相同类产品相比，它们具有更好的容错性，更高的扭矩密度和更低的扭矩波动。但是，稀土磁体价格昂贵，并且其供应在过去几年中多次中断。因此，为避免牵引电动机中使用稀土磁体，本研究提出了一种带有Fe磁体的五相PMaSynRM。要特别注意避免不可逆的退磁和变形，因为这是任何铁基设备中的两个主要问题。转子结构通过附加的几何参数进行了独特的优化，以降低不可逆退磁的风险。为了提高转子的结构稳定性，采用了最佳的中心支柱和减轻重量的缺口。相对于稀土磁体的PMaSynRM，已对拟议的铁基五相PMaSynRM进行了比较研究。集总参数模型和有限元模型已用于设计优化和性能分析。最后，制造了3 kW的拟议五相Fe PMaSynRM原型，进行了实验测试，并将其与基准稀土PMaSynRM进行了比较，以验证所提出的设计和仿真结果。

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