Paper Info
Title
An improved closed-loop stability related measure for finite-precision digital controller realizations
Abstract
The pole-sensitivity approach is employed to investigate the stability issue of the discrete-time control system, where a digital controller implemented with finite word length (FWL), is used. A stability related measure is derived, which is more accurate in estimating the closed-loop stability robustness of an FWL implemented controller than some existing measures for the pole-sensitivity analysis. This improved stability measure thus provides a better criterion to find the optimal realizations for a generic controller structure that includes output-feedback and observer-based controllers. A numerical example is used to verify the theoretical analysis and to illustrate the design procedure
Year
DOI
Venue
2001
10.1109/9.935076
Automatic Control, IEEE Transactions
Keywords
Field
DocType
closed loop systems,control system synthesis,digital control,discrete time systems,feedback,observers,poles and zeros,robust control,sensitivity analysis,closed-loop stability related measure,closed-loop stability robustness,finite word length,finite-precision digital controller realizations,observer-based controllers,output-feedback controllers,pole-sensitivity approach
Control theory,Pole–zero plot,Control theory,Control engineering,Robustness (computer science),Control system,Robust control,Loop stability,Digital control,Mathematics
Journal
Volume
Issue
ISSN
46
7
0018-9286
Citations 
PageRank 
References 
14
1.40
6
Authors
4
Name
Order
Citations
PageRank
Jun Wu17216.70
Shanben Chen211623.09
Guoqi Li338746.18
Robert S. H. Istepanian410913.22