Please use this identifier to cite or link to this item:
Title: A dual-rate adaptive digital smith predictor
Authors: Hang, C.C. 
Lim, K.W. 
Chong, B.W.
Keywords: Adaptive control
dead time
digital Smith Predictor
dual-rate sampling
parameter estimation
reduced order modelling
Issue Date: Jan-1989
Citation: Hang, C.C.,Lim, K.W.,Chong, B.W. (1989-01). A dual-rate adaptive digital smith predictor. Automatica 25 (1) : 1-16. ScholarBank@NUS Repository.
Abstract: 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. © 1989.
Source Title: Automatica
ISSN: 00051098
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

Page view(s)

checked on Aug 18, 2019

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.