Design, analysis and control of a new repulsive-type magnetic bearing system
Design, analysis and control of a new repulsive-type magnetic bearing system
复制标题
新型斥力型磁力轴承系统的设计、分析与控制
DOI：
10.1049/ip-epa:19990203
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
S. Yamada
中科院分区：
文献类型：
--
作者：
S. Mukhopadhyay;T. Ohjj;M. Iwahara;S. Yamada
一种排斥式磁轴承系统，其径向轴承部分很好地利用了定子和转子永磁体之间的斥力，从而简化了轴向控制方案。本文报道了一种用于水平轴机床的新型斥力式磁轴承系统的设计、分析、制造和实现。永磁体的形状和结构是这种类型的磁轴承满意运行的最关键的部件。利用有限元方法对永磁体进行了建模，并估计了三个方向上的斥力性质和刚度。利用这些力并表示转子动力学，讨论了实际物理斥力型磁轴承系统的建模问题。该控制器配置在一个数字信号处理器周围。设计并制作了原型模型，并给出了实验结果。
A repulsive-type magnetic bearing system in which the radial bearing section makes good utilisation of the repulsive forces between the stator and the rotor permanent magnets results in a simplified axial control scheme. The authors report the design, analysis, fabrication and implementation of a new repulsive-type magnetic bearing system for a horizontal-shaft machine. The shape and configuration of the permanent magnet is the most critical component for satisfactory operation of this type of magnetic bearing. Modelling of the permanent magnets is done with the help of finite-element analysis and the nature of the repulsive forces and the stiffnesses are estimated along the three directions. Using the forces and expressing the rotor dynamics, the modelling of a real physical repulsive-type magnetic bearing system is discussed. The controller is configured around a digital signal processor. A prototype model has been designed and fabricated and experimental results are presented.