Title: Order reduction using improved pole clustering with Pade approximation method for linear system

Authors: Sharad Kumar Tiwari; Gagandeep Kaur

Addresses: Department of Electrical and Instrumentation Engineering, Thapar University, Patiala, 147004, India ' Department of Electrical and Instrumentation Engineering, Thapar University, Patiala, 147004, India

Abstract: An enhanced pole clustering method is presented that yields linear time invariant-reduced order system. This is accomplished by using the combined benefits of improved Pade approximation method. The applicability of the proposed method for both single and multi-variable linear time invariant systems is verified by solving numerical experiment. Furthermore, the results show that the realised LTI-reduced order system retains stability and steady-state conditions of the original system. The reduced model also exhibits lower integral square error values.

Keywords: linear time invariant systems; order reduction; pole clustering; Pade approximation; stability; ISE; integral square error.

DOI: 10.1504/IJSCIP.2015.075908

International Journal of System Control and Information Processing, 2015 Vol.1 No.4, pp.386 - 397

Received: 20 Apr 2015
Accepted: 20 Oct 2015

Published online: 12 Apr 2016 *

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