2 research outputs found

    Simulaci贸n del control nivel y presi贸n en el domo de una caldera acuotubular usando Control Station庐 (LOOP-PRO)

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    The present work consisted of the simulation of the automatic control in the dome of a water tube boiler, to know in detail the behavior of the level and pressure and its influence on the operation of the boiler. To obtain the dynamics of each of the variables in the dome, the boiler software was used. Different disturbances were performed in manual mode to collect data and later fit them to a dynamic model. With the adjusted functions, a 2x2 MIMO multivariable control strategy was proposed, which was validated with the relative gain criterion proceeding to the decoupling methodology. The parameters of each controller were tuned by the BLT method for multivariate systems and validated with the Nyquist stability criterion. The 2x2 system was simulated in the Control Station software with the controllers in automatic mode and step-type disturbances were performed to observe the influence that each parameter of the PID controller has on the response time, oscillation and offset of the controlled variables and their reflection on the other variables. With the criteria of overshoot and rise time, each parameter was retuned. To ensure that the dynamics in the dome remains controlled, disturbances were made for servo control and regulator control, obtaining satisfactory results for each system. PID controllers were shown to respond quickly and efficientlyEl presente trabajo consisti贸 en la simulaci贸n del control autom谩tico en el domo de una caldera acuotubular, para conocer en detalle el comportamiento del nivel y presi贸n y su influencia en la operaci贸n de la caldera. Para obtener la din谩mica de cada una de las variables en el domo, se utiliz贸 el software de calderas. Se realizaron diferentes perturbaciones en modo manual para recolectar datos y posteriormente ajustarlos a un modelo din谩mico. Con las funciones ajustadas, se propuso una estrategia de control multivariable MIMO 2x2, que se valid贸 con el criterio de ganancia relativa procediendo a la metodolog铆a de desacople. Los par谩metros de cada controlador fueron sintonizados por el m茅todo BLT para sistemas multivariables y validados con el criterio de estabilidad de Nyquist. Se simul贸 el sistema 2x2 en el software Control Station con los controladores en autom谩tico y se realizaron perturbaciones tipo escal贸n para observar la influencia que tiene cada par谩metro del controlador PID en el tiempo de respuesta, oscilaci贸n y offset de las variables controladas y su reflejo en las dem谩s variables. Con el criterio de overshoot y rise time se volvi贸 a sintonizar cada par谩metro. Para garantizar que la din谩mica en el domo se mantenga controlada, se realiz贸 perturbaciones para servo control y control regulador obteniendo resultados satisfactorios para cada sistema. Se demostr贸 que los controladores PID responder谩n de manera r谩pida y eficiente
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