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dc.contributor.author
Elicabe, Guillermo Enrique
dc.contributor.author
Georgakis, Christos
dc.date.available
2018-02-05T17:15:57Z
dc.date.issued
1999-12-21
dc.identifier.citation
Elicabe, Guillermo Enrique; Georgakis, Christos; Effect of feedback controllers in state estimation schemes; American Chemical Society; Industrial Engineering Chemistry Research; 39; 2; 21-12-1999; 387-395
dc.identifier.issn
0888-5885
dc.identifier.uri
http://hdl.handle.net/11336/35606
dc.description.abstract
It is common practice in state estimation of chemical systems to include augmented states modeled as random-constant or random-walk processes. When process controllers with integral terms are present, undesirable interaction effects may occur between the augmented states and the controllers. If no attention is paid to this interaction, the resulting estimator may diverge. In this work the interaction between controller and augmented states is analyzed. Using the linear systems theory, it is shown that the unwanted interaction and final divergence are caused by lack of detectability of the augmented system. A specific test, based on the Popov−Belevitch−Hautus rank test, to check the detectability in the system under study is derived. In many cases the test can be performed by simple inspection. A series of examples are given where the concept of detectability is applied to help in discovering and preventing the negative interaction between controllers and augmented states. Finally, a discussion is presented comparing the results of the standard observability test, applied to a real problem, with those obtained with the test derived here and with the behavior of a real estimator for the same problem. It is concluded that the standard observability test is not able to discriminate between different estimator designs and consequently to produce practical results as those obtained with the alternative test, i.e., the disclosure of unfeasible estimator designs.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
Ingeniería de los Materiales
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.subject.classification
Otras Ciencias Químicas
dc.subject.classification
Ciencias Químicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
Effect of feedback controllers in state estimation schemes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-02-02T19:44:06Z
dc.identifier.eissn
1520-5045
dc.journal.volume
39
dc.journal.number
2
dc.journal.pagination
387-395
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Washington
dc.description.fil
Fil: Elicabe, Guillermo Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
dc.description.fil
Fil: Georgakis, Christos. Lehigh University; Estados Unidos
dc.journal.title
Industrial Engineering Chemistry Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/ie990361r
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://pubs.acs.org/doi/abs/10.1021/ie990361r


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