Robust Model Matching Control System Design for MIMO Plants with Large Perturbations

Abstract

The design problem of robust model matching control systems for multünput multioutput (MIMO) plants with large perturbations is dealt with in this paper. The plant is assumed to be of minimum phase. The parameters and degrees of the plant can vary in large ranges (in step-wise fashion), and take values in (any) bounded and known sets. Under some hypotheses on these sets, a method is proposed for designing controller which makes the closed-loop system have the following properties: for the nominal plant, exact model matching is achieved, and for the real plant, the closed-loop system has robust stability, robust static-state property and robust transient property simultaneously.