Imperial College London

DrBenoitChachuat

Faculty of EngineeringDepartment of Chemical Engineering

Reader in Process Systems Engineering
 
 
 
//

Contact

 

b.chachuat Website

 
 
//

Location

 

609Roderic Hill BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@inproceedings{Paulen:2013:10.3182/20130904-3-FR-2041.00057,
author = {Paulen, R and Villanueva, M and Chachuat, B},
doi = {10.3182/20130904-3-FR-2041.00057},
pages = {564--569},
publisher = {International Federation of Automatic Control},
title = {Optimization-based domain reduction in guaranteed parameter estimation of nonlinear dynamic systems},
url = {http://dx.doi.org/10.3182/20130904-3-FR-2041.00057},
year = {2013}
}

RIS format (EndNote, RefMan)

TY  - CPAPER
AB - This paper is concerned with guaranteed parameter estimation in nonlinear dynamic systems in a context of bounded measurement error. The problem consists of finding-or approximating as closely as possible-the set of all possible parameter values such that the predicted outputs match the corresponding measurements within prescribed error bounds. An exhaustive search procedure is applied, whereby the parameter set is successively partitioned into smaller boxes and exclusion tests are performed to eliminate some of these boxes, until a prespecified threshold on the approximation level is met. In order to enhance the convergence of this procedure, we investigate the use of optimization-based domain reduction techniques for tightening the parameter boxes before partitioning. We construct such bound-reduction problems as linear programs from the polyhedral relaxation of Taylor models of the predicted outputs. When applied to a simple case study, the proposed approach is found to reduce the computational burden significantly, both in terms of CPU time and number of iterations. © IFAC.
AU - Paulen,R
AU - Villanueva,M
AU - Chachuat,B
DO - 10.3182/20130904-3-FR-2041.00057
EP - 569
PB - International Federation of Automatic Control
PY - 2013///
SN - 1474-6670
SP - 564
TI - Optimization-based domain reduction in guaranteed parameter estimation of nonlinear dynamic systems
UR - http://dx.doi.org/10.3182/20130904-3-FR-2041.00057
UR - http://hdl.handle.net/10044/1/30475
ER -