新型双控制器方案的磁悬浮止推轴承控制系统

A Study of Controller System for Magnetic Suspension Thrust Bearing Using New Type of Double-controller Scheme

介绍了磁悬浮止推轴承的实验系统 ,该系统经过位置传感器检测其信号 ,当位置变化时 ,系统可以通过调节电磁力的大小 ,实现闭环控制。利用线性控制原理对其系统建立了数学模型。新型双控制方案采用两个控制器 :一个是跟随控制器 ;一个是抗干扰控制器。系统的跟随性能可以单独由跟随器调节 ;系统的抗干扰性能可以单独由抗干扰控制器调节。采用新型双控制方案与 I- PD控制分别对其系统进行了仿真 ,并对其仿真结果进行了比较。对新型双控制方案的控制参数进行了整定。最后 ,给出了仿真结果及结论。

The test system of magnetic suspension thrust bearing is introduced.This system measures its signal through position sensor and when position changes,the system can realize close hoop control by regulating the magnetic force.The maths model is established by using ciear control theory.The new type of double controller scheme is made up of two controllers:one is the following controller;the other is the resistant disturbance controller.The following function of the system may be regulated by following controller alone;the function of the resistant disturbance may be regulated by resistant disturbance controller alone.The system is simulated through the new type of double controller scheme and I PD control separately,and the two schemes are compared.The elements of the new type of double controller scheme are adjusted and the results of the simulation and experiment are also presented in the paper.