Citas bibligráficas
Peláez, S., (2019). Diseño del control de temperatura para un proceso de pasteurización usando técnica de control predictivo [Tesis, Universidad Nacional de Ingeniería]. http://hdl.handle.net/20.500.14076/18995
Peláez, S., Diseño del control de temperatura para un proceso de pasteurización usando técnica de control predictivo [Tesis]. : Universidad Nacional de Ingeniería; 2019. http://hdl.handle.net/20.500.14076/18995
@misc{renati/710521,
title = "Diseño del control de temperatura para un proceso de pasteurización usando técnica de control predictivo",
author = "Peláez Cárdenas, Sergio Kevin",
publisher = "Universidad Nacional de Ingeniería",
year = "2019"
}
This thesis presents the modeling of a milk pasteurization system in the frequency domain, in which the values of the time constant and time delay can be observed. The main purpose of the research is the development of a Predictive Model-Based Control (MPC, Model Predictive Control) algorithm, specifically using the technique of a Dynamic Control Matrix (DMC) for its application in a milk pasteurization plant with the HTST (High Temperature Short Time) method. The control objective is the reduction of response establishment times, overshooting and error in steady state that can be generated in systems with a long delay time, as will be observed in the system present in the investigation. In the present work, the comparison of the performances of different control algorithms that will be evaluated to observe the predominance of the efficiency of a predictive control algorithm will be carried out. The controllers with which the comparison with the MPC will be carried out are the following: PID Control (Proportional - Integral - Derivative) and Smith Predictor (advanced predictive control technique - SP). Indeed, with the results obtained at the end of the investigation, it is concluded, by means of simulations of the designed control systems, that the predictive control based on the model is the one that generates a response with greater efficiency than those of the other controllers, because it has an establishment time and a much smaller boost envelope than the PID and SP algorithms. The thesis is developed in four Chapters. The first chapter consists of the presentation of the problem of the pasteurization process, the objectives and the hypothesis of the investigation. The second chapter will explain the various control systems throughout their history and how they have evolved and developed a much greater degree of robustness. In the third chapter, the different algorithms that have been developed to compare efficiencies will be shown. In the fourth chapter, the evaluation of the results obtained by the previously designed controls will be performed in order to select the best predictive control algorithm.
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