Sensor locations and noise reduction in high-purity batch distillation control loops

Detalhes bibliográficos
Autor(a) principal: Oisiovici,R.M.
Data de Publicação: 2000
Outros Autores: Cruz,S.L.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Chemical Engineering
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400031
Resumo: The influence of the sensor locations on the composition control of high-purity batch distillation columns has been investigated. Using concepts of the nonlinear control theory, an input-output linearizing controller was implemented to keep the distillate composition constant at a desired value by varying the reflux ratio. An Extended Kalman Filter was developed to estimate the compositions required in the control algorithm using temperature measurements. In the presence of measurement noise, the control performance depended greatly on the sensor locations. Placing the sensors further from the top stages reduced the detrimental effects of noise but increased the inference error. To achieve accurate composition control, both noise reduction and composition estimate accuracy should be considered in the selection of the sensor locations.
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spelling Sensor locations and noise reduction in high-purity batch distillation control loopsBatch distillationNonlinear controlKalman filterSensor locationHigh-purityThe influence of the sensor locations on the composition control of high-purity batch distillation columns has been investigated. Using concepts of the nonlinear control theory, an input-output linearizing controller was implemented to keep the distillate composition constant at a desired value by varying the reflux ratio. An Extended Kalman Filter was developed to estimate the compositions required in the control algorithm using temperature measurements. In the presence of measurement noise, the control performance depended greatly on the sensor locations. Placing the sensors further from the top stages reduced the detrimental effects of noise but increased the inference error. To achieve accurate composition control, both noise reduction and composition estimate accuracy should be considered in the selection of the sensor locations.Brazilian Society of Chemical Engineering2000-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400031Brazilian Journal of Chemical Engineering v.17 n.4-7 2000reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322000000400031info:eu-repo/semantics/openAccessOisiovici,R.M.Cruz,S.L.eng2001-03-16T00:00:00Zoai:scielo:S0104-66322000000400031Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2001-03-16T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false
dc.title.none.fl_str_mv Sensor locations and noise reduction in high-purity batch distillation control loops
title Sensor locations and noise reduction in high-purity batch distillation control loops
spellingShingle Sensor locations and noise reduction in high-purity batch distillation control loops
Oisiovici,R.M.
Batch distillation
Nonlinear control
Kalman filter
Sensor location
High-purity
title_short Sensor locations and noise reduction in high-purity batch distillation control loops
title_full Sensor locations and noise reduction in high-purity batch distillation control loops
title_fullStr Sensor locations and noise reduction in high-purity batch distillation control loops
title_full_unstemmed Sensor locations and noise reduction in high-purity batch distillation control loops
title_sort Sensor locations and noise reduction in high-purity batch distillation control loops
author Oisiovici,R.M.
author_facet Oisiovici,R.M.
Cruz,S.L.
author_role author
author2 Cruz,S.L.
author2_role author
dc.contributor.author.fl_str_mv Oisiovici,R.M.
Cruz,S.L.
dc.subject.por.fl_str_mv Batch distillation
Nonlinear control
Kalman filter
Sensor location
High-purity
topic Batch distillation
Nonlinear control
Kalman filter
Sensor location
High-purity
description The influence of the sensor locations on the composition control of high-purity batch distillation columns has been investigated. Using concepts of the nonlinear control theory, an input-output linearizing controller was implemented to keep the distillate composition constant at a desired value by varying the reflux ratio. An Extended Kalman Filter was developed to estimate the compositions required in the control algorithm using temperature measurements. In the presence of measurement noise, the control performance depended greatly on the sensor locations. Placing the sensors further from the top stages reduced the detrimental effects of noise but increased the inference error. To achieve accurate composition control, both noise reduction and composition estimate accuracy should be considered in the selection of the sensor locations.
publishDate 2000
dc.date.none.fl_str_mv 2000-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400031
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322000000400031
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0104-66322000000400031
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
publisher.none.fl_str_mv Brazilian Society of Chemical Engineering
dc.source.none.fl_str_mv Brazilian Journal of Chemical Engineering v.17 n.4-7 2000
reponame:Brazilian Journal of Chemical Engineering
instname:Associação Brasileira de Engenharia Química (ABEQ)
instacron:ABEQ
instname_str Associação Brasileira de Engenharia Química (ABEQ)
instacron_str ABEQ
institution ABEQ
reponame_str Brazilian Journal of Chemical Engineering
collection Brazilian Journal of Chemical Engineering
repository.name.fl_str_mv Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)
repository.mail.fl_str_mv rgiudici@usp.br||rgiudici@usp.br
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