主动磁轴承转子质量不平衡补偿研究  

Research on Mass Unbalance Compensation of Spindle Suspended by Positive Magnetic Bearing

作　　者：张涛[1] 倪伟[1] 叶小婷[1] 

机构地区：[1]淮阴工学院,江苏淮安223001

出　　处：《微特电机》2009年第5期17-19,30,共4页Small & Special Electrical Machines

基　　金：淮阴工学院青年科研基金资助(HGQ0629)

摘　　要：在旋转机械中,由于转子质量的不平衡会导致转子沿旋转方向的振动,严重影响系统的动态特性及安全运行,特别是对具有较高速度的磁轴承支撑的悬浮转子来说,对质量不平衡进行补偿研究,具有重要的现实意义和实用价值。介绍了磁轴承支撑的悬浮转子振动控制原理,推导出存在质量不平衡的转子运动方程。基于位移最小的补偿准则对之进行振动补偿控制,设计了前馈补偿控制系统,利用Matlab/Simulink对该系统进行了仿真试验研究。仿真结果表明:基于前馈补偿控制器的振动控制策略能够很好地抑制悬浮转子振动,提高了转子旋转精度。The vibration originated from the rotor＇s unbalanced mass affected the dynamic properties and stable function. So unbalanced compensation on the rotating machine had important practical meaning, especially in the case of highspeed spindle suspended by magnetic bearings. In this paper, the theory of vibration unbalanced control on suspended spindle was presented. Dynamic equation of spindle was deduced. The spindle vibration control of the magnetic bearing system was achieved based on the minimum displacement. Using feed-forward technique, the control system was designed and simulated with Matlab/Simulink toolbox. The simulation results showed that the control system could reduce the spindle vibration and that this method could improve the rotation precision.

关 键 词：主动磁轴承 不平衡补偿 悬浮转子 仿真 振动控制 

分 类 号：TM359.9[电气工程—电机]