PM-assist double stator synchronous machine

M. Kiani, Wei Wang, Lei Gu, B. Fahimi
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引用次数: 2

Abstract

Permanent magnet synchronous machines (PMSM) have dominated several key industries such as electric propulsion of electric and hybrid electric vehicles. This is primarily due to the introduction of temperature tolerant, high energy rare earth magnets over the past two decades. The proposed magnetic configuration presented in this paper introduces an opportunity for optimal generation of electromagnetic torque. Our investigation shows that the proposed configuration can reach the power and torque densities similar to those of the interior magnet PMSM using ferrite magnets of the same volume. This will allow for removal of the need for high energy rare earth magnets, thereby allowing for sustainable production of high grade PMSM drives. The key aspect in the magnetic design of the machine deals with the tangential formation of the flux lines inside the rotor which in turn will increase the motional forces while mitigating the undesirable radial forces acting on the stators.
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永磁辅助双定子同步电机
永磁同步电机在电动汽车和混合动力汽车的电力推进等几个关键行业占据主导地位。这主要是由于在过去二十年中引入了耐温,高能稀土磁铁。本文提出的磁结构为电磁转矩的最佳产生提供了机会。我们的研究表明,所提出的结构可以达到与使用相同体积的铁氧体磁铁的内磁体PMSM相似的功率和转矩密度。这将允许消除对高能稀土磁铁的需求,从而允许可持续生产高品质的永磁同步电机驱动器。机器磁力设计的关键方面是处理转子内部磁通线的切向形成,这反过来将增加运动力,同时减轻作用在定子上的不良径向力。
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