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Diseño de compensadores para una planta que presenta ciclo de histéresis, tiempo de retardo y altas variaciones en sus parámetros

Authors: López Sotelo, Jesús Alfonso; Cruz Vergara, Carlos Héctor; Nieto Londoño, Rubén Darío;

Diseño de compensadores para una planta que presenta ciclo de histéresis, tiempo de retardo y altas variaciones en sus parámetros

Abstract

En el presente artículo se presenta el diseño de tres estrategias de control y se incluye un análisis comparativo de sus desempeños en la compensación de una planta que presenta ciclo de histéresis, tiempo de retardo y altas variaciones en sus parámetros. La planta realiza un proceso por lotes, en el cual la salida debe seguir una trayectoria trapezoidal con un error máximo del 5%. La planta se modela con un diagrama de bloques a partir de su curva de reacción. Las estrategias fueron: control clásico (controlador PID), control difuso (controlador PD difuso con salida incremental) y control robusto (PID autosintonizado con módulo difuso). Para observar el efecto de histéresis que presenta la planta sobre la respuesta del sistema se aplica una señal de prueba con un escalón de subida y un escalón de caída. Para comparar las respuestas del sistema controlado con los compensadores estudiados se utilizan índices de desempeño, índices de robustez y el criterio IAE. El estudio comparativo realizado en este trabajo se desarrolla a través de simulaciones, en las cuales se puede apreciar el desempeño de cada estrategia de control con una entrada escalón y una entrada trapezoidal

In this paper, we present the design of three control strategies and include a comparative analysis of their performance in the compensation of a plant that bears hysteresis loop, delay time and high variations in its parameters.The plant makes a batch process in which the output must follow a trapezoidal trajectory with a maximum error of 5%. In the article, the plant is modeled with a block diagram from its reaction curve. To control the plant, classical control strategies (PID), fuzzy logic (fuzzy PD controller with incremental output) and robust control (self-tuning PID with fuzzy module), were designed. In order to observe the effect of the hysteresis that the plant is making on the response of the system, we applied a test signal with a rise step and a drop step. We compared the responses of the controlled system with the analyzed compensators by using performance rates, rates of robustness and IAE criteria. The comparative study in this work is developed through simulations, in which you can see the performance of each control strategy with a step input and a trapezoidal input

Country
Colombia
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Keywords

Automatic control, Hysteresis cycle, Compensador PD difuso, Retardo de transporte, Control automático, Compensador IMC, Robust compensator, Modeling, Modelado, Compensador robusto, IMC compensator, Ciclo de histéresis, Compensator PD fuzzy, Transport delay

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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