A modified dynamic matrix control for integrating processes

Dynamic matrix control is a kind of model predictive control technique based on step response model of a process. Conventional DMC is usually not applicable to integrating processes due to an offset in the presence of a sustained step load disturbance. This paper introduces a simple modified DMC algorithm to deal with it. The algorithm proposed is based on the fact that DMC algorithm is equivalent to an IMC structure. Then we can improve conventional DMC using a modified IMC structure to remove the offset. Simulation examples show the effectiveness of control algorithm.