International Journal For Multidisciplinary Research

E-ISSN: 2582-2160     Impact Factor: 9.24

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 7, Issue 4 (July-August 2025) Submit your research before last 3 days of August to publish your research paper in the issue of July-August.

Simplification of Large-Scale Linear Systems using a new model reduction technique for Design of Controllers

Author(s) MONIKA, Sudhansu Kumar Mishra
Country India
Abstract A new model diminution technique is proposed for the reduction of complexity of higher order linear dynamical systems. In this proposed method, a generalized pole clustering technique is used for obtaining the denominator polynomial of the lower order plant and the numerator polynomial is evaluated by applying the Time moment matching technique. The generalized pole clustering algorithm promises the preservation of stability and dominant poles of the actual system in the reduced order plant. The performance error indices such as integral square error (ISE), integral absolute error (IAE), integral time weighted absolute error (ITAE) and relative integral square error (RISE) are used to validate the proposed technique. By using the transfer function of the simplified order plant, the PID and lead/lag compensators are designed by using a moment matching algorithm. This controller is applied to the original large-scale system and the response of the closed loop system is matching with the response of the desired reference model.
Keywords Large scale systems, Model order reduction, Multidimensional systems, Pole clustering method, Transfer function, Controller design, Integral square error (ISE), Integral absolute error (IAE), Integral time weighted absolute error (ITAE) and relative integral square error (RISE).
Field Engineering
Published In Volume 7, Issue 4, July-August 2025
Published On 2025-07-23
DOI https://doi.org/10.36948/ijfmr.2025.v07i04.51876
Short DOI https://doi.org/g9t2fz

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