五定子单元的无轴承瓣形电机的设计与优化

Design and Optimization of Bearingless Segment Slice Motor With Five Stator Elements

无轴承薄片电机具有薄片转子的结构,其气隙大,结构简单,控制灵活,在工业领域具有很好的应用前景。在充分发挥薄片电机的优点的基础上,本文设计了具有五个相同定子单元的瓣形无轴承薄片电机,采用有限元分析仿真的方法对电机定子单元的结构和尺寸进行优化选择,并制造样机。通过对实验样机进行悬浮系统动、静态性能测试,结果表明,该结构的无轴承薄片电机转子位置控制系统响应速度快、抗干扰能力强,且制造工艺简单,成本较低,是目前小型泵类磁悬浮传动的最好解决方案。

Bearingless slice motors （BSM） have a wide application prospect as the special structure of its slice rotor. Based on giving full play to the advantages of the slice motor, this paper comprised the design process of a bearingless segment slice motor with five equal stator elements and concentrated windings. Finite-element simulations were applied to maximize the bearing forces and the motor torque per ampere and minimize the reluctance forces to optimize the motor structure. A prototype was built and put into operation. Measurements provided a very good correlation with the simulation results. Therefore, it was proven that this motor is suitable for industrial applications, which require design, and a low weight in particular. bearingless operation, a high torque, a compact