In this article, we propose a purely electromagnetic propulsion unit (meaning that no mechanical gear is considered to transfer its torque or speed). This propulsion system is obtained based on an electric motor with an integrated magnetic multiplier electrical machine with integrated magnetic multiplier (EMIMM)—multiplier stands for speed multiplication. The EMIMM is offering two levels of torque and speed, and at the same time, the speed is multiplied without increasing the supplying frequency of the electric motor. Thus, two benefits are expected: the motor efficiency is not affected by the increased speed and the mechanical stress on the static converter is reduced (and, consequently, better controllability is obtained). To validate the proposed solution, the EMIMM's structure is analytically, numerically (through finite-element analysis), and experimentally investigated, and good agreement is found for the validation of the study.

中文翻译：

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两级传动纯电磁推进系统的设计、数值和实验结果


在本文中，我们提出了一种纯电磁推进装置（意味着不考虑机械齿轮来传递其扭矩或速度）。该推进系统是基于带有集成磁倍增器电机的电动机而获得的，该电机具有集成磁倍增器（EMIMM）——倍增器代表速度倍增。 EMIMM提供两个级别的扭矩和速度，同时在不增加电机供电频率的情况下将速度倍增。因此，预计有两个好处：电机效率不受速度增加的影响，并且静态转换器上的机械应力减少（因此获得更好的可控性）。为了验证所提出的解决方案，对 EMIMM 的结构进行了分析、数值（通过有限元分析）和实验研究，并为研究的验证找到了良好的一致性。