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首页> 外文期刊>IEEE Transactions on Industrial Electronics >Design of a Novel Parallel-Hybrid-Excited Dual-PM Machine Based on Armature Harmonics Diversity for Electric Vehicle Propulsion
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Design of a Novel Parallel-Hybrid-Excited Dual-PM Machine Based on Armature Harmonics Diversity for Electric Vehicle Propulsion

机译：基于电枢谐波分集的新型并联混合励磁双永磁电机设计

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摘要

A novel parallel-hybrid dual permanent magnet (PM) machine topology with both enhanced torque density and improved flux weakening capability is proposed for electric vehicle propulsion in this paper. The key is to artificially construct the harmonics diversity with a single-layer concentrated armature winding in the stator and thus simultaneously couple the armature field with the excitation field produced by slot PM, rotor PM, and stator dc source, respectively. Enhanced torque density is obtained in this new topology due to the symmetrical flux-modulation effect between dual PM sources. Moreover, benefiting from a parallel excitation characteristic of hybrid magnetic circuit, the demagnetization risk is significantly mitigated for slot PM source and thus an extended flux weakening range is obtained. In this paper, the proposed new topology and its design mechanism are investigated, along with its electromagnetic performance evaluated based on finite-element analysis. Further, some leading design parameters are analyzed and determined to provide a design guideline for the proposed new topology. Finally, a prototype is built and fully tested. Relevant experimental results agree well with the finite-element predication.
机译：本文提出了一种新型的并联混合双永磁（PM）电机拓扑，该拓扑既具有增强的转矩密度又具有改善的磁通减弱能力，可用于电动汽车推进。关键是用定子中的单层集中电枢绕组人工构建谐波分集，从而同时将电枢场与槽缝PM，转子PM和定子直流源分别产生的励磁场耦合。由于双PM源之间的对称磁通调制效应，在这种新拓扑中获得了增强的转矩密度。此外，得益于混合磁路的并联励磁特性，槽缝PM源的去磁风险大大降低，因此获得了更大的磁通弱化范围。本文对提出的新拓扑及其设计机理进行了研究，并基于有限元分析对其电磁性能进行了评估。此外，分析并确定了一些领先的设计参数，以为提出的新拓扑提供设计指南。最终，原型被构建并经过全面测试。有关的实验结果与有限元预测非常吻合。

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