Design and control of a disk-type integrated motor-bearing system
Design and control of a disk-type integrated motor-bearing system
复制标题
DOI：
10.1109/3516.990883
复制
发表时间：
2002-08
影响因子：
6.4
通讯作者：
W. Han;C. Lee;Y. Okada
中科院分区：
文献类型：
--
作者：
W. Han;C. Lee;Y. Okada
介绍了一种具有轴向磁通的盘式电机集成轴承系统的设计、分析和控制方法。四个对称放置的绕组组的正弦驱动电流产生扭矩，而相同大小但相反符号的控制电流加到相反的绕组组产生径向力。控制电流的目的是打破力的对称性，导致不平衡的径向力。该系统采用双定子，不仅可以有效消除径向控制力中的旋转调频效应，还可以减小转矩脉动。实验结果表明，在实验室建立的电机-轴承一体化系统样机能够实现转子的稳定径向控制和运行。
A disk-type integrated motor-bearing system having axial magnetic flux is newly invented and its design, analysis, and control methods are presented. Sinusoidal motoring currents to four symmetrically placed winding groups produce a torque, whereas control currents of the same magnitude but opposite signs added to the opposite winding groups create radial forces. The control currents are intended to break force symmetry, resulting in unbalanced radial forces. The system employs two stators not only to effectively remove the rotational frequency modulation effect in the radial control forces, but also to reduce the torque ripple. It is shown that the prototype integrated motor-bearing system built in the laboratory succeeds in stable radial direction control and operation of the rotor.