The University of Southampton
University of Southampton Institutional Repository

Optimal finite-precision controller realization of sampled data systems

Optimal finite-precision controller realization of sampled data systems
Optimal finite-precision controller realization of sampled data systems
We investigate the sensitivity of closed-loop stability with respect to finite word length (FWL) effects in the implementation of the digital controller coefficients. The optimal realization of digital controller structures with finite precision consideration is formulated as the solution of a constrained nonlinear optimization problem. A sophisticated optimization strategy involving the adaptive simulated annealing (ASA) optimizer is developed to provide an efficient computational method for searching the optimal FWL controller realization with maximum stability bound and minimum bit length requirement. A numerical simulation example is presented to illustrate the effectiveness of the proposed strategy.
0020-7721
429-438
Istepanian, R. H.
b71b8b46-cb69-4fcd-8253-d2e7a93079ea
Chen, S.
9310a111-f79a-48b8-98c7-383ca93cbb80
Wu, J.
5a0119e5-a760-4ff5-90b9-ec69926ce501
Whidborne, J. F.
4ab1bd73-64f5-4c7c-97da-31c8758352a0
Istepanian, R. H.
b71b8b46-cb69-4fcd-8253-d2e7a93079ea
Chen, S.
9310a111-f79a-48b8-98c7-383ca93cbb80
Wu, J.
5a0119e5-a760-4ff5-90b9-ec69926ce501
Whidborne, J. F.
4ab1bd73-64f5-4c7c-97da-31c8758352a0

Istepanian, R. H., Chen, S., Wu, J. and Whidborne, J. F. (2000) Optimal finite-precision controller realization of sampled data systems. International Journal of Systems Science, 31 (4), 429-438.

Record type: Article

Abstract

We investigate the sensitivity of closed-loop stability with respect to finite word length (FWL) effects in the implementation of the digital controller coefficients. The optimal realization of digital controller structures with finite precision consideration is formulated as the solution of a constrained nonlinear optimization problem. A sophisticated optimization strategy involving the adaptive simulated annealing (ASA) optimizer is developed to provide an efficient computational method for searching the optimal FWL controller realization with maximum stability bound and minimum bit length requirement. A numerical simulation example is presented to illustrate the effectiveness of the proposed strategy.

Text
713866322_content.pdf - Other
Download (414kB)

More information

Published date: April 2000
Additional Information: Address: London
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 251060
URI: http://eprints.soton.ac.uk/id/eprint/251060
ISSN: 0020-7721
PURE UUID: 256a33cb-f87c-43cc-9d7a-a16253af7029

Catalogue record

Date deposited: 29 Mar 2000
Last modified: 24 Jan 2022 17:56

Export record

Contributors

Author: R. H. Istepanian
Author: S. Chen
Author: J. Wu
Author: J. F. Whidborne

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×