Model Order Approximation of Linear Time Invariant System using Dragonfly Algorithm

Abstract

This paper deals with an integrated algorithm for the approximation of higher dimensional system (HDS). Framework of this research is initiated by considering different higher order transfer functions of LTI system. Numerator as well as denominator coefficients of the corresponding lower dimensional model (LDM) are computed using dragonfly algorithm (DA) and Routh approximation (RA) respectively. The proposed technique is verified by considering standard test cases. Further, the performance accuracies are evaluated by comparing the step and frequency responses of HDS and LDM.