Model Order Reduction of Discrete Uncertain System Using Modified δ-γ Routh Approximation and Affine Arithmetic Method

H MALLESAM DORA

H MALLESAM DORA Research Scholar ,Andhra University, Visakhapatnam

Abstract

This paper deals with a new technique for order reduction of higher order discrete uncertain system into lower order discrete time interval system. Using modified Routh Approximation and Affine Arithmetic developed to obtained numerator and denominator of reduced order model. The numerator and denominator of reduced order model is evaluated using modified δ and γ -table respectively. Which is calculated based on Dolgin & Zehab’s concepts [3]. For understanding the effectiveness of the proposed method, it has been applied on two standard numerical examples, it is also found that the proposed method gives less integral square error and better approximation to the original higher order system.

How to cite this article:
Dora HM, Narasimhulu T, Pasumarthi MR. Model
Order Reduction of Discrete Uncertain System
using Modified δ-γ Routh Approximation and
Affine Arithmetic Method. J Adv Res Electri Engg
Tech 2020; 4(1): 1-4

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