Optimal Routh Approximates for Discrete-Time Interval Systems using Kharitonov Theorem

In this paper, a new model order reduction technique for discrete time interval system is proposed using the prominence of Social Group Optimization (SGO) search algorithm. Reduced Order Interval model is build using Alpha parameters of Higher Order discrete time Interval Systems that are derived based on a recursive formula. The proposed order reduction method is obtained by minimizing Integral Squared Error as an objective function. Numerical example existing in literature are considered to show the effectiveness of the technique. Convincing simulation results are obtained. Keywords: