HKUST Library Institutional Repository Banner

HKUST Institutional Repository >
Chemical and Biomolecular Engineering >
CBME Conference Papers >

Please use this identifier to cite or link to this item:
Title: Identification of low-order process model with time delay from closed-loop step test
Authors: Liu, Tao
Gao, Furong
Zhao, Chunhui
Keywords: Closed loop systems
Laplace transform
Closed-loop step response test
Frequency response estimation algorithm
Issue Date: Dec-2009
Citation: Proceedings of the 48th IEEE Decision and Control Conference, held jointly with the 28th Chinese Control Conference (CDC/CCC 2009), 15-18 December 2009, Shanghai, China, p. 2587-2591
Abstract: To facilitate control-oriented model identification during closed-loop system operation, a low-order model identification method is proposed in this paper, based on using closed-loop step response test. By introducing a damping factor to the closed-loop step response for realization of the Laplace transform, a frequency response estimation algorithm is developed in terms of the closed-loop control structure used for identification. Correspondingly, two model identification algorithms are derived analytically for obtaining the widely used low-order process models of first-order-plus-dead-time (FOPDT) and second-order-plus-dead-time (SOPDT), respectively. Illustrative examples from the recent literature are given to demonstrate the effectiveness of the proposed identification algorithms.
Rights: © 2009 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Appears in Collections:CBME Conference Papers

Files in This Item:

File Description SizeFormat
IdentificationofLOW.pdf377KbAdobe PDFView/Open

All items in this Repository are protected by copyright, with all rights reserved.