Robustness and stability of multivariable generalized predictive control system

This paper analyzed the robustness of GPCS and obtain conclusions for analyzing robustness. The relationship between robustness on the one hand and the stability degree and oscillatoriness of the unperturbed system on the other hand was find out. From this relationship it can be seen that robustness can be improved by proper choice of a reference model and observer polynomial. The stability of multivariable GPCS was analyzed and its relationships with design parameters was obtained.