A novel magnetic gear for high speed motor system
A novel magnetic gear for high speed motor system
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DOI：
10.1109/iemdc.2017.8002311
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
K. Aiso;K. Akatsu;Y. Aoyama
中科院分区：
文献类型：
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作者：
K. Aiso;K. Akatsu;Y. Aoyama
在工业领域中，需要将高速电机和齿轮集成的驱动系统来有效地利用有限的空间。然而，机械齿轮通常需要润滑和冷却，同时会产生噪音和振动。为了克服这些问题，磁齿轮被期望。磁力齿轮通过非接触式能量转换实现系统的免维护、低噪声、低振动的特点。然而，由于高速转子的永磁体导致机械强度较弱，传统的磁力齿轮不适合高速电机的系统。本文提出了一种用于超高速电机的新型磁阻磁力齿轮和磁通开关磁力齿轮。所提出的磁齿轮的高速转子仅由铁芯构成。因此，该结构非常简单和坚固，并且可以在高速区域中旋转。此外，与传统的表面永磁（SPM）磁齿轮相比，磁阻磁齿轮实现了高效率，因为高速转子上不会产生磁铁涡流损耗。而磁通切换磁力齿轮是利用固定磁场磁铁的磁动势来实现高转矩密度。在本文中，这些建议的磁齿轮的性能，包括转矩密度，系统的大小，损失和效率进行了评估。
In the industrial field, the drive system integrated the high speed motor and the gear is required to effectively utilize the limited space. However, mechanical gears often require their lubrication and cooling, they generate whilst noise and vibration. To overcome these problems, the magnetic gears have been expected. Magnetic gears achieve the system with maintenance-free, low noise and low vibration characteristics by contact-less power transformation. However, conventional magnetic gears are not suitable system for high speed motors because the mechanical strength is weak due to permanent magnets of the high speed rotor. This paper presents a novel reluctance magnetic gear and flux switching magnetic gear for the super high speed motor. The high speed rotor of the proposed magnetic gears is constructed by only iron core. Therefore, the structure is very simple and robust and it is possible to rotate in the high speed region. Moreover, the reluctance magnetic gear realizes high efficiency compared with the conventional surface permanent magnet (SPM) magnetic gear because the magnet eddy current loss on high speed rotor is not generated. While, the flux switching magnetic gear realizes the high torque density by utilizing the magnetomotive force of stationary field magnets. In this paper, the performances of these proposed magnetic gears including torque density, the system size, loss and efficiency are evaluated.