Adaptive Optimal Preview Control with Its Application in Piston Digital Controlled Manufacture
HU Xiao-jun, CUI Hong-Juan, ZHOU Rui, JI Xiu-cai (College of Electromechanical Engineering and Automation, National University of Defense Technology, Changsha 410073, China)
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.