One of the most important performance indexes, which affect the industrial application of AMB, is the dynamic rigidity, because the dynamic rigidity of the system, which uses the classical PID controller, is too small, we improve the PID controller.

• 影响磁轴承应用的很重要的一个性能指标就是动态刚度，针对对传统的PID控制器控制下的动态刚度太小的问题，对PID控制器进行了改进，提高了在PID控制下磁轴承系统的动态刚度。