Closed loop robust stability of mimo dynamic matrix control with input saturation

Abstract

Since most actuators have limited bounds in practical use, it's meaningful to synthesize this factor in designing a robust model predictive controller. In this paper, a new expression of FIR(finite impulse response)-based Multi-input/Multi-output dynamic matrix control is derived involving robustness issues, robust stability and analysis of steady state error of the closed loop DMC with input saturation are discussed, theorem relevant to that is put forward aimed at hard input constraint. In another viewpoint, the feasibility issue of the on-line optimization with output soft constraint is analyzed. The proposed theorem is tested through simulation