Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/6542

Identification of time delay model for integrating processes from closed-loop step test

Authors Liu, T.
Gao, F.
Zhao, C.
Issue Date 2009
Source Proceedings of 2009 7th Asian Control Conference, ASCC 2009 , 2009, p. 615-619
Summary Based on a closed-loop step response test, a model identification method is proposed for integrating processes with time delay in this paper. 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 used to demonstrate the effectiveness and merits of the proposed identification algorithms. ©2009 ACA.
Subjects
ISBN 978-1-4244-5440-2
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Language English
Format Conference paper
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