Recursive online IV method for identification of continuous-time slowly time-varying models in closed loop

Padilla, A. and Garnier, H. and Young, P.C. and Yuz, J. (2017) Recursive online IV method for identification of continuous-time slowly time-varying models in closed loop. IFAC-PapersOnLine, 50 (1). pp. 4008-4013. ISSN 2405-8963

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Abstract

Model estimation of industrial processes is often done in closed loop due, for instance, to production constraints or safety reasons. On the other hand, many processes are time-varying because of aging effects or changes in the environmental conditions. In this study, a recursive estimation algorithm for linear, continuous-time, slowly time-varying systems operating in closed loop, is developed. The proposed method consists in coupling linear filter approaches to handle the time-derivative, with closed-loop instrumental variable (IV) techniques to deal with measurement noise. Simulations show the advantages of using this IV-based method.

Item Type:
Journal Article
Journal or Publication Title:
IFAC-PapersOnLine
Subjects:
ID Code:
88343
Deposited By:
Deposited On:
22 Jun 2019 08:14
Refereed?:
Yes
Published?:
Published
Last Modified:
05 Aug 2020 05:34