NDLI: A State Predictor for Multivariable Systems Including Multiple Delays in Each Output Path

Content Provider	IEEE Xplore Digital Library
Author	Sawaguchi, Y. Furutani, E. Araki, M.
Copyright Year	2005
Description	Author affiliation: Department of Electrical Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan. sawaguti@rotary.kuee.kyoto-u.ac.jp (Sawaguchi, Y.)
Abstract	Various practical systems include time delays due to measurement and computational delays, and transmission and transport lags. In this paper, the authors propose a novel state predictor for a certain class of multivariable systems including multiple output delays. The predictor consists of full-order observers estimating past state from each delayed output and finite interval integrators compensating the effect of the delays using state transition equations. State prediction error converges to zero at an arbitrary rate, which can be determined by choosing a finite number of poles of the full-order observers. In this predictor, the distance to instability of the state transition matrix is not affected by the delays. This means that large delays have no influence on the numerical stability, whereas that of a conventional observer highly depends on the delays. Numerical examples for an integral process and an unstable process demonstrate the effectiveness of the proposed predictor.
Starting Page	7204
Ending Page	7209
File Size	263579
Page Count	6
File Format	PDF
ISBN	0780395670
DOI	10.1109/CDC.2005.1583323
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-12-15
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	IEEE/EUCA
Subject Keyword	MIMO Delay systems Delay effects Delay estimation Observers Time measurement State estimation Equations Poles and zeros Numerical stability
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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