Experimental Results Passing Through Critical Speeds of Radial and Tilting Motions in a One-Axis Actively Positioned Single-Drive Bearingless Motor
Experimental Results Passing Through Critical Speeds of Radial and Tilting Motions in a One-Axis Actively Positioned Single-Drive Bearingless Motor
复制标题
一轴主动定位单驱动无轴承电机通过径向和倾斜运动临界速度的实验结果
DOI：
10.1109/ecce.2018.8558121
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
and Akira Chiba
中科院分区：
文献类型：
--
作者：
Hiroya Sugimoto;and Akira Chiba
单轴主动定位无轴承电机已被研究用于工业应用，如泵和冷却风扇。特别是单驱动无轴承电机具有调节系统简单的巨大优势。仅需一个三相逆变器即可通过q轴和d轴电流产生转矩和主动轴向力。另一方面，转子轴的径向和倾斜运动通过被动磁轴承被动地稳定。这些被动力和扭矩只是弹簧力。固有地，不产生阻尼力和扭矩。结果，转子在径向和倾斜方向上的振动在共振频率下相当高。本文提出了一种新的策略，通过电机加速度与风扇叶片通过临界转速。实验验证了单驱动无轴承电机能够顺利通过临界转速而不触地。
One-axis actively positioned bearingless motors have been studied for industry applications such as pumps and cooling fans. In particular, single-drive bearingless motors have a great advantage of simple regulation system. Only one three-phase inverter is required for generating torque and active axial force by q- and d-axis currents. On the other hand, radial and tilting motions of the rotor shaft are passively stabilized by passive magnetic bearings. These passive force and torque are just spring force. Inherently, damping force and torque are not generated. As a result, the rotor vibrations in the radial and tilting directions are considerable high at resonant frequencies. In this paper, a novel strategy is proposed to pass through the critical speed by the motor acceleration with a fan blade. In the experiment, it is verified that the single-drive bearingless motor successfully pass through the critical speed without touch-down.