Order reduction of uncertain systems using the advantages of two varied approximations

Abstract

Transfer function of higher orders from physical system makes the overall study and analysis uneasy demanding an approximate model that preserves the basic characteristics of the original model. Also, rigorous study and analysis of physical system lead to the outcome of systems with uncertainty instead of certain coefficients. Thus, systems having uncertain but bounded parameters known as uncertain systems are under consideration in this paper. As a whole, an effective algorithm to determine the reduced order model is proposed here. This methodology is verified using numerical examples available from the literatures and compared with other method.