A dual-rate adaptive digital Smith predictor
type: Item
instance of: scholarly article
title: A dual-rate adaptive digital Smith predictor
zbMATH Open document ID: 0666.93080
DOI: 10.1016/0005-1098(89)90115-5
author: S. H. Smith
published in: Automatica
publication date: 1989-01-01T00:00:00Z
review text: The limitations of a single-rate adaptive digital Smith predictor are discussed. The combination of using a larger sampling interval for on- line parameter estimation and a smaller sampling interval for control, leads to the development of a dual-rate adaptive system. The necessary design modifications for the dual-rate system, namely the additional digital filtering of measurements, the conversion of slow model parameters to those of the fast model and the matching of the dc term, are simple to incorporate. The dual-rate system gives superior responses for set-point following and load rejection with a smaller control interval, while it improves the robustness of the model parameter estimation in the presence of unmodelled dynamics with a larger estimation interval. The superior performance of this new design is substantiated by computer simulation and experiments on a heat exchanger pilot plant.
Mathematics Subject Classification ID: 93C40
Mathematics Subject Classification ID: 93C57
Mathematics Subject Classification ID: 93E10
Mathematics Subject Classification ID: 93B35
zbMATH DE Number: 4091343
zbMATH Keywords: adaptive digital Smith predictor
zbMATH Keywords: parameter estimation
zbMATH Keywords: dual-rate system
zbMATH Keywords: robustness
MaRDI profile type: Publication
full work available at URL: 0005-1098(89)90115-5
OpenAlex ID: W1985163295
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description: scientific article; zbMATH DE number 4091343