Increasing the Operating Speed of a Consequent Pole Axial Gap Motor for Higher Output Power Density
Increasing the Operating Speed of a Consequent Pole Axial Gap Motor for Higher Output Power Density
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提高交替极轴向间隙电机的运行速度以获得更高的输出功率密度
DOI：
10.1541/ieejjia.8.497
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发表时间：
2019
影响因子：
1.7
通讯作者：
A. Daikoku
中科院分区：
文献类型：
--
作者：
Toru Ogawa;Tomohira Takahashi;M. Takemoto;S. Ogasawara;H. Arita;A. Daikoku
在本研究中，我们研究如何提高交替极轴向间隙电机的运行速度以实现更高的输出密度。我们的研究小组一直在开发一种带有励磁绕组的交替极轴向间隙电机，作为电动汽车的牵引电机。为了提高此类车辆的燃油经济性和布局，需要更小、更轻的牵引电机，并且制造具有更高运行速度的更小电机是有利可图的。为了实现高速运行，需要抑制线间电压，为此，我们研究了槽/极组合。而且，由于轴向间隙电机的转子外径比径向间隙电机大，因此还应考虑转子强度。我们研究使用非磁性高强度钢来支撑转子的部件。我们介绍了电机设计和旋转爆发测试结果，并确认电机可以在目标最大速度和输出功率密度下运行。
In this study, we examine how to increase the operating speed of a consequent pole axial gap motor to achieve higher output density. Our research group has been developing a consequent pole axial gap motor with field windings as the traction motor for electric vehicles. A smaller and lighter traction motor is required for better fuel economy and layout of such vehicles, and it is profitable to manufacture a smaller motor with an increased operating speed. To achieve high-speed operation, it is necessary to suppress the line-to-line voltage, and to that end, we examine the slot/pole combination. Moreover, because the rotor outer diameter of an axial gap motor is larger than that of a radial gap motor, the rotor strength should also be considered. We study the use of non-magnetic high-tensile-strength steel for the component that supports the rotor. We present the motor design and the results of spin burst tests, and we confirm that the motor can operate at the target maximum speed and output power density.