高频角振动测试转台的迭代学习控制

为了提高角振动转台在陀螺高频特性测试时对周期性期望轨迹的跟踪精度,该文在PID型迭代学习控制的基础上,针对转台控制系统的稳定性和迭代学习的收敛性进行解耦设计,得到一种复合迭代学习控制器,并从频域角度给出了其收敛性条件,最后用MatlabSimulink工具箱对该设计进行了仿真研究.仿真结果表明,与常规比例-积分-微分控制相比较,这种设计改善了系统输出跟踪周期性正弦信号输入的精度,提高了系统带宽,并对系统消除周期性干扰有所裨益.结论表明这种复合迭代控制器可以应用于高频角振动转台的控制.

High frequency Angle-vibration Table's Iterative Learning Control

This paper presents a multiple-type iterative learning control based on the iterative learning control(ILC),which will be used in Vibration Table to improve the precision during the period of tracking periodic anticipant input.The result of simulation shows that the multiple-type iterative learning control,compared to groovy PID controller,can improve the precision of the system during tracking the periodic input and augment the bandwidth of system.The design is of benefit to reducing the periodic disturbance too.It can be seen that the multiple-type iterative learning control can be used in high frequency angle-vibration table control.