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dc.contributor.author
Costanza, Vicente
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dc.contributor.author
Rivadeneira Paz, Pablo Santiago
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dc.date.available
2017-02-16T15:52:14Z
dc.date.issued
2011-05
dc.identifier.citation
Costanza, Vicente; Rivadeneira Paz, Pablo Santiago; Hamiltonian Two-Degrees-of-Freedom Control of Chemical Reactors; John Wiley & Sons Ltd; Optimal Control Applications & Methods; 32; 3; 5-2011; 350-368
dc.identifier.issn
0143-2087
dc.identifier.uri
http://hdl.handle.net/11336/13104
dc.description.abstract
A novel unified approach to two-degrees-of-freedom control is devised and applied to a classical chemical reactor model. The scheme is constructed from the optimal control point of view and along the lines of the Hamiltonian formalism for nonlinear processes. The proposed scheme optimizes both the feedforward and the feedback components of the control variable with respect to the same cost objective. The original Hamiltonian function governs the feedforward dynamics, and its derivatives are part of the gain for the feedback component. The optimal state trajectory is generated online, and is tracked by a combination of deterministic and stochastic optimal tools. The relevant numerical data to manipulate all stages come from a unique off-line calculation, which provides design information for a whole family of related control problems. This is possible because a new set of PDEs (the variational equations) allow to recover the initial value of the costate variable, and the Hamilton equations can then be solved as an initial-value problem. Perturbations from the optimal trajectory are abated through an optimal state estimator and a deterministic regulator with a generalized Riccati gain. Both gains are updated online, starting with initial values extracted from the solution to the variational equations. The control strategy is particularly useful in driving nonlinear processes from an equilibrium point to an arbitrary target in a finite-horizon optimization context.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
John Wiley & Sons Ltd
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Chemical Reactors
dc.subject
Nonlinear Dynamics
dc.subject
Optimisation
dc.subject
Two-Degrees-Of-Freedom Control
dc.subject.classification
Ingeniería de Procesos Químicos
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Hamiltonian Two-Degrees-of-Freedom Control of Chemical Reactors
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-02-09T13:51:15Z
dc.journal.volume
32
dc.journal.number
3
dc.journal.pagination
350-368
dc.journal.pais
Reino Unido
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dc.journal.ciudad
Chichester
dc.description.fil
Fil: Costanza, Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
dc.description.fil
Fil: Rivadeneira Paz, Pablo Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina
dc.journal.title
Optimal Control Applications & Methods
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1002/oca.947
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://onlinelibrary.wiley.com/doi/10.1002/oca.947/abstract
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