磁悬浮轴承系统不平衡振动控制的方法

针对磁悬浮磨床电主轴系统中存在的同步振动问题 ,通过计算机仿真和实验 ,研究了 2种处理方法 :力自由控制和开环前馈控制。在力自由控制中 ,控制环节对同频振动分量不加以响应。在开环前馈控制中 ,由不同于主控制器的前馈控制环节对同频振动分量进行处理 ,其结果叠加到主控制器的输出中。计算机仿真和实际的实验结果均表明 ,这2种方法对提高系统性能具有明显的效果。该研究对于磁悬浮轴承系统不平衡振动的控制具有重要意义。

Unbalance vibration control methods for active magnetic bearings system

This paper investigates two methods, force free control and open loop feedforward control to analyze unbalance vibrations in active magnetic bearings (AMB) grinding electrospindle systems using computer simulations and experiments. In force free control, the controller has no response to synchronous vibrations. In open loop feedforward control, the feedforward control, which differs from the main controller, analyzes the synchronous vibrations and adds a component to the output of the main controller. Computer simulations and experiments show that these two methods can improve the system performance by improving unbalance vibration control in AMB systems.