Model order reduction of discrete-time interval system based on Mikhailov stability criterion

Abstract

Analysis of higher-order interval system is an appealing topic of research demanding an appropriate methodology to reduce them to their lower approximate. This paper attempts to fulfill the requirement by introducing two different algorithms interlaced with the property of Mikhailov stability criterion. Precisely, the stated approach derives the reduced order denominator polynomial, and two separate techniques compute the numerator polynomials. Overall the two proposed algorithms are justified for their novelty through their implication over the numerical examples followed by their rational acceptability to a real-time test system.