一种开环输出反馈预测控制

For system with unmeasurable state and polytopic model uncertainty, through defining parameter-dependent vertex control moves in this paper, a heuristic open-loop output feedback predictive control method based on polytopic description model is proposed, among which vertex control moves are depending on polytopic description model parameters, and are constructed by polytopic vertices values. Under the framework of industrial predictive control, it includes open-loop prediction, steady state target calculation and dynamic control. The upper layer steady state target calculation uses steady state model to optimize for the steady state target, the lower layer dynamic control follows the polytopic vertex steady state target obtained from steady state target calculation. Considering the fact that the steady state target calculation module in industrial predictive control always uses linear model, in this paper the artificial disturbance term is added to polytopic description model in order to improve the method, which makes the polytopic description model available for the upper layer steady state target calculation module, the lower layer follows the steady state target based on the improved dynamic predictive equation. The feasibility and effectiveness of the two methods are verified through simulation.