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dc.contributor.advisorVelázquez-Figueroa, Carlos
dc.contributor.authorValencia-Agudelo, Andrés F.
dc.description.abstractAn approach to automatic control of a continuous tumble mixer of powders is presented. The control system is based on an ideal model that describes the mixer dynamics where the controlled variables are the outlet flow from the mixer and the variance of mixing, while the manipulated variables are the inlet flow of material to mix, with a predetermined ratio of compounds A and B, and the rotational velocity of the mixer. The system illustrates a Multi Input Multi Output (MIMO) control problem, where each manipulated variable affect both controlled variables. A strategy of two feedback PI controllers was successfully implemented, and it was compared to an MPC strategy: The simulations results provided an excellent tool to compare and study stability, effects of overshoots on set-point tracking, performance, robustness and the capacity to reject the effect of load disturbances.
dc.description.abstractUna propuesta para el control automático de un mezclador continuo giratorio de polvos es presentado a continuación. El sistema de control está basado en un modelo ideal que describe la dinámica de mezclado, en el cual las variables controladas son el flujo de salida de material y la varianza de mezclado, mientras las variables manipuladas son el flujo de entrada de material, con una relación predeterminada de compuestos A y B, y la velocidad de rotación del mezclador. El sistema ilustra un problema de control Múltiples Entradas Múltiples Salidas (MIMO), donde cada variable manipulada afecta las dos variables controladas. Una estrategia de dos controladores PI feedback fue implementada y comparada con una estrategia MPC: Los resultados obtenidos por simulación fueron la herramienta usada para comparar y estudiar estabilidad, efectos de sobrepasos por cambios en set-point, desempeño, robustez y capacidad para contrarrestar los efectos de perturbaciones.
dc.subjectMulti Input Multi Output (MIMO)en_US
dc.subjectGranular materialsen_US
dc.subject.lcshGranular materials--Mixingen_US
dc.subject.lcshAutomatic controlen_US
dc.titleModeling and control of continuous tumble mixing of granular materialsen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2005 Andrés F. Valencia-Agudeloen_US
dc.contributor.committeeBogere, Moses N.
dc.contributor.committeeMuzzio, Fernando J.
dc.contributor.representativeGarcía, Eduardo Juan Engineeringen_US
dc.contributor.collegeCollege of Engineeringen_US
dc.contributor.departmentDepartment of Chemical Engineeringen_US

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