电动汽车用混合永磁辅助同步磁阻电机

H. Won, Yang-Ki Hong, Minyeong Choi, Briana Bryant, Jonathan Platt, Seungdeog Choi
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引用次数: 5

摘要

本文研究了一种三层混合永磁辅助同步磁阻电机(H-PMASynRM),该电机在电动汽车应用中表现出最具成本效益的性能。铁氧体和钕铁硼两种永磁体可互换用于评估电机性能指标,如每成本转矩、转矩密度、效率、峰值功率因数、最大速度和不可逆退磁率。仿真结果表明,第一层为钕铁硼,第二层为铁氧体,第三层为铁氧体和钕铁硼复合材料的H-PMASynRM,与丰田普锐斯2010使用的基于钕铁硼的v型永磁同步电机相比,其最大转矩为220 Nm,成本降低12美元,转速高于8,000 rpm时效率提高1-3%,峰值功率因数降低6.8%,扭矩密度仅降低17%。
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Cost-Effectiveness Hybrid Permanent Magnet Assisted Synchronous Reluctance Machine for Electric Vehicle
This paper investigates a three-layer hybrid permanent magnet assisted synchronous reluctance machine (H-PMASynRM) that exhibits the most cost-effective performance for electric vehicle applications. Two kinds of permanent magnet, ferrite and NdFeB, are interchangeably used to evaluate motor performance metrics such as the torque per cost, torque density, efficiency, peak power factor, maximum speed, and rate of irreversible demagnetization. The simulation results show that the H-PMASynRM having the first layer made of NdFeB, the second layer made of ferrite, and the third layer made of a combination of ferrite and NdFeB, can exhibit the same maximum torque of 220 Nm with $12 lower cost, 1-3% higher efficiency at speed above 8,000 rpm, 6.8% lower peak power factor, and only 17% lower torque density compared to the NdFeB-based V-type PMSM that is used in Toyota Prius 2010.
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