Search results for "Non-isothermal CSTR"

showing 2 items of 2 documents

Control of a Non-isothermal CSTR by Type-2 Fuzzy Logic Controllers

2009

The paper describes the application of a type-2 fuzzy logic controller (FLC) to a non-isothermal continuous stirred tank reactor (CSTR) characterized by the presence of saddle node and Hopf bifurcations. Its performance is compared with a type-1 fuzzy logic controller performance. A full analysis of the uncontrolled CSTR dynamic was carried out and used for the feedback-feedforward fuzzy controllers development. Simulation results confirm the effectiveness and the robustness of the type-2 FLCs which outperform their type-1 counterparts, particularly when uncertainties are present in the system.

Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciComputer scienceContinuous stirred-tank reactorSaddle-node bifurcationFuzzy logicIsothermal processType-2 fuzzy logic controllerFuzzy logic controllerNon-isothermal CSTRControl theoryRobustness (computer science)BifurcationNon-linear system.Bifurcation
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Control of a non-isothermal continuous stirred tank reactor by a feedback–feedforward structure using type-2 fuzzy logic controllers

2011

A control system that uses type-2 fuzzy logic controllers (FLC) is proposed for the control of a non-isothermal continuous stirred tank reactor (CSTR), where a first order irreversible reaction occurs and that is characterized by the presence of bifurcations. Bifurcations due to parameter variations can bring the reactor to instability or create new working conditions which although stable are unacceptable. An extensive analysis of the uncontrolled CSTR dynamics was carried out and used for the choice of the control configuration and the development of controllers. In addition to a feedback controller, the introduction of a feedforward control loop was required to maintain effective control…

Settore ING-IND/26 - Teoria Dello Sviluppo Dei Processi ChimiciInformation Systems and ManagementComputer scienceNon-linear systemsFeed forwardContinuous stirred-tank reactorFuzzy logicInstabilityIsothermal processComputer Science ApplicationsTheoretical Computer ScienceType-2 fuzzy logic controllerNonlinear systemNon-isothermal CSTRArtificial IntelligenceControl and Systems EngineeringControl theoryRobustness (computer science)Control systemBifurcationType-2 fuzzy logic controller; Non-isothermal CSTR; Bifurcation; Non-linear systemsSoftware
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