(A) study on low sensitivity local suboptimal controllers

Abstract

Two types of low sensitivity local suboptimal and stabilizing controllers for large scale systems are suggested; local state-feedback controller and local statefeedback controller with integral action. For this, necessary conditions for obtaining the suboptimal gain matrices of each local state-feedback controller are obtained by a parameter optimization technique, where the controllers minimizes not only the integral of squared sum of the state and control variables but also the integral of squared sum of the state and control sensitivity variables. To show the validity of the result, two examples are illustrated.