Robust Low-Order Controller Design for Model-Matching Optimization Using Coprime Factors for Linear Discrete MIMO Systems

Abstract

This research develops a reliable and systematic low-order controller design method for solving model -matching problem of linear discrete time-invariant multi-input multi-output system. Using the coprime factors and properties of discrete outer function, the low order controller design is reformulated as a convex optimization problem. The solutions are obtained using linear matrix inequality techniques. An IEC turbofan engine is used to illustrate the model-matching design algorithm.