Optimal preview controller design for multirate systems based on adaptive dynamic programming

A design method of optimal preview controller for multirate systems based on Q-learning algorithm and adaptive dynamic programming theory is proposed in this paper. Combining with the core knowledge of preview control theory and adaptive dynamic programming, a model-free optimal preview controller acquire algorithm of multirate systems was designed by using discrete lifting technology and the construction method of augmented error system. The data required by this algorithm can be measured online and the a priori knowledge of system matrices is not needed.