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Oversizing Analysis in Plant-wide Control Design for Industrial Processes
(Elsevier, 2013-04-09)
In this work, an alternative plant-wide control design approach based on oversizing analysis is presented. The overall strategy can be divided in two main sequential tasks: 1- defining the optimal decentralized control ...
Economic plant-wide control design with backoff estimations using internal model control
(Elsevier, 2016-04)
Economic optimal operation typically involves operating as close as possible to the active constraints. However, in the presence of disturbances it is necessary to back-off from the constraints in order to avoid violating ...
Improvements on Multiloop Control Design via Net Load Evaluation
(Pergamon-elsevier Science Ltd, 2013-02)
The plant-wide control problem is a very important topic in process control. A particular control structure design will define (restrict) the future operability degree for the plant under study. Classical control policies ...
Plant-wide control strategy applied to the Tennessee Eastman process at two operating points
(Elsevier, 2011-10)
This work presents a new plant-wide control strategy able to be applied on large scale chemical plants. It is based on an extension of the non square relative gain array (NRG) theoretical concepts, introduced by Chang and ...
Selection of controlled variables: A novel perspective based on the singular energy of weighted graphs
(Elsevier, 2013-09-13)
The optimal selection of controlled variables is a well-known plant-wide control subproblem. In this paper, a novel approach based on spectral graph theory is proposed. This strategy is useful from both graphical and ...
Improvements on multivariable control strategies tested on the Petlyuk distillation column
(Elsevier, 2013-04-19)
In this work, a plant-wide control methodology, named Minimum Square Deviation (MSD), is applied on the challenging Petlyuk distillation column. This process presents an interesting design since allows to separate a ternary ...
Model-based supervisory control structure for plantwide control of a reactor-separator-recycle plant
(American Chemical Society, 2014-12)
This work presents a methodology for designing a supervisory control structure in plantwide control (PWC). First, available PWC structures are discussed focusing on their drawbacks originating from the scarce flexibility ...
Projeto e desenvolvimento de uma estufa automatizada para plantas
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrônica, 2012-10-18)
The cultivation of plants in greenhouses is widely used because it allows the increasing of agricultural productivity, as well as it makes possible growing of various exotics plants, providing a microclimate that satisfies ...
Plant-wide control design based on steady-state combined indexes
(Elsevier Science, 2016-01)
This work proposes an alternative methodology for designing multi-loop control structures based on steady-state indexes and multi-objective combinatorial optimization problems. Indeed, the simultaneous selection of the ...