Model reduction of discrete interval system using clustering of poles. (4th September 2012)

• Record Type: Journal Article
• Authors: Singh, V.P.; Chandra, D.
• Is Part Of: International journal of modelling, identification and control. Volume 17:Number 2(2012)
• Page Start: 116
• Page End: 123
• Publication Date: 2012-09-04
• Subjects: discrete interval system -- model reduction -- Padé approximation -- pole clustering; Engineering -- Methodology -- Periodicals; Science -- Methodology -- Periodicals; 001.42
• Languages: English
• ISSNs: 1746-6172

Abstract

This paper presents a method for reduction of discrete interval systems using pole clustering and Padé approximation. For a given high-order system, denominator of the reduced-order model is obtained by pole clustering and the numerator is obtained by matching first r time moments of the system and its reduced-order model where r is the order of reduced-order model. Two numerical examples are included to illustrate the procedure.