自适应最优预见控制及其在活塞数控加工中的应用

自适应最优预见控制采用二次型最优预见控制．设定目标值和误差信号，通过误差系统方程和含有误差项和输入项的二次型评价函数导出系统最优状态反馈系数矩阵、目标值FR和干扰信号FD的前馈系数矩阵．由自适应回路动态调整FR和FD以适应系统变化，进行前馈控制，得出自适应控制律，设计自适应最优预见前馈控制器．并以活塞数控加工系统中直线电机控制为例，仿真实验证明了其可用性．

Adaptive Optimal Preview Control with Its Application in Piston Digital Controlled Manufacture

Square optimal preview control is based in adaptive optimal preview control. Set the target value and signal error, the optimal state-feedback coefficient matrix and feed-forward coefficient matrix FR and FD of target signal and disturb signal are educed via error equation and quadric value function which includes error term and input term. FR and FD are adjusted dynamically with the adaptive control loop to adapt the change of system. The feed-forward controller for adaptive optimal preview was designed according as feed-forward control and its adaptive control rule. Taking linear motor control in piston digital machining control system as an example, emulation experiment proved the usability of adaptive optimal preview control.