Novel Rotor Design with Reduced Rare-Earth Material for PM Machines
Novel Rotor Design with Reduced Rare-Earth Material for PM Machines
复制标题
用于永磁电机的减少稀土材料的新型转子设计
DOI：
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
D. Gerling
中科院分区：
文献类型：
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作者：
G. Dajaku;H. Zhou;X. Dajaku;D. Gerling
本文提出了一种新的永磁电机转子拓扑结构，旨在通过提高永磁体对气隙磁通密度的利用率来减少稀土材料的用量。新的转子配置由两种不同的转子拓扑结构组成，这两种转子拓扑结构组合在一个转子铁芯中，其中每一种转子拓扑结构都包括磁通屏障，以减少其转子MMF次谐波，同时放大用作操作波的第三次谐波。这种能力已被用来减少所需的磁铁量，以产生相同的气隙磁通密度相比，常见的PM转子拓扑结构。对具有所提出的转子概念的牵引电机进行的调查表明，与所考虑的参考BMW-i3电机相比，磁体量显著减少。
This paper presents a new rotor topology for permanent magnet machines aiming to reduce the amount of rare-earth material by improving the utilization of permanent magnets on air-gap flux density production. The new rotor configuration consists of two different rotor topologies which are combined in one rotor core, where each of them includes magnetic flux barriers to reduce their rotor MMF sub-harmonics and simultaneously to amplify the 3rd one which has been used as an operation wave. This ability has been used to reduce the required magnets amount for producing the same air-gap flux density compared with the common PM rotor topologies. The investigations carried out on a traction motor with the proposed rotor concept indicate a significant magnet amount reduction in comparison with the considered reference BMW-i3 motor.