This paper presents a methodology for the optimal operation of mixed continuous-batch processes based on a hierarchical decomposition of the problem: local dynamic optimizers perform the economic optimization of the b...
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This paper describes a neural predictive control toolbox developed in Matlab/Simulink environment. The application permits all phases of the system design: simulation of the plant by means of any Simulink model, loadi...
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The joint design of processes and control is an integration technique that incorporates control requirements in the process design stage. This paper presents an integrated design methodology and illustrate it with an ...
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This paper presents a type of solar thermal power plant and also studies the efficiency of the common type of this distributed generation resource. In order to improve the efficiency of the power station, several tech...
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Distributed controlsystems (DCS) are based on assignments of control loops and supervision points to different units. In a first approach, these assignments are made statically and following given distribution criter...
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Modelling and simulation are inseparable procedures that include the complex activities associated with the construction of models representing real processes, and experimentation with the models to obtain data on the...
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This paper describes a neural predictive control toolbox developed in Matlab/Simulink environment. The application permits all phases of the system design: simulation of the plant by means of any Simulink model, loadi...
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This paper describes a neural predictive control toolbox developed in Matlab/Simulink environment. The application permits all phases of the system design: simulation of the plant by means of any Simulink model, loading of input/output data, definition of the neural network architecture, training, and, finally, application of the predictive control strategy based on the neural network model.
An approach to assist the determination of the best time-after-injection for taking an scintigram in bone scanning is proposed. More precisely, a technique is discussed to estimate the evolution of the portions, in di...
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ISBN:
(纸本)9789881701299
An approach to assist the determination of the best time-after-injection for taking an scintigram in bone scanning is proposed. More precisely, a technique is discussed to estimate the evolution of the portions, in different compartments of the body, of the injected dose using a model of the radionuclide distribution dynamics, the available measurements and information on variations of the parameters. At each time, the possible range of variation of these unmeasured states is evaluated, and from this the expected evolution of the contrast of the image is obtained. This makes it possible to predict the best time for taking the image. To show the applicability, a practical example is provided.
The joint design of processes and control is an integration technique that incorporates control requirements in the process design stage. This paper presents an integrated design methodology and illustrate it with an ...
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The joint design of processes and control is an integration technique that incorporates control requirements in the process design stage. This paper presents an integrated design methodology and illustrate it with an alternative design for a real plant of activated sludge processing. The process design obtained is not only optimum from the economic point of view, but exhibits certain previously fixed dynamic characteristics. The point of operation and the size of the processing units are obtained through mathematical programming, together with the parameters of the controller.
Many processes, even being of a continuous nature, involve in its operation signals or rules different from the classical continuous variables represented by real variables and modelled by DAE. In practice they includ...
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