Switching-dynamic-matrix control in industrial production processes
工业生产过程中的切换动态矩阵控制

In industrial production processes, the characteristics of the controlled object may change considerably when the assigned operation range is altered. How to deal with this problem effectively remains a challenge to the process control community. We develop a set of linear switched-system-state-equations to describe the production process, and define the variable of the discrete-switching-law and the variable of the switched-mode, respectively. On the basis of the modelpredictive-control philosophy, we derive an efficient switching-dynamic-matrix control algorithm, in which the impacts of the deviated characteristics on the predicted control output are taken into consideration to improve the control performance and raise the robustness. To demonstrate the advantages of the proposed algorithm, we perform simulations on the levelcontrol system of the liquid-vapor separator in a TE process. Experimental results show more satisfactory performances over the cascade PID control.