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Automatic Control of Causticizing Process
Klán, Petr
Automatic control the causticizing process is described in this paper for reducing the variance of the conductivity of alkaline liquors in the causticizer. PI controller is designed and tested in the industrial application.
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On an Unconventional Research-Information Center
Klán, Petr
A research-information center of Chemical Informatics was installed. As a main contribution is to present basic experiences from providing this center. It namely concentrates on an optimal ratio between equipment for getting information and equipment for creating information. WWW pages called "Czech Chemistry on the Internet" are a part of this center. Basic experiences with carrying out this WWW site will be discussed as well as optimal requirements for modern Internet technologies.
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On the Optimal Ratio of Proportional and Integral Actions in a PI Controller
Klán, Petr ; Gorez, R.
This paper intends to give a quantitative characterization for the aggressiveness of PI control in order to derive new tuning relations characterizing the PI control. These relations could guarantee some predetermined aggressiveness. Simulation results with a collection of test processes promote such a concept. They show that a certain optimal aggressiveness is needed for minimization of the Integral-Time-Absolute-Error (ITAE) criterion.
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