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Petri nets Visualization on Power Panel
Krechler, Michal ; Malounek, Petr (referee) ; Chomát, Luděk (advisor)
KRECHLER, M. Petri nets visualization on Power Panel. Brno: VUT in Brno,Faculty of electrical engineering and communication, 2009. 75 p. Supervisor Ing. Luděk Chomát. In bachelor's thesis is solved Petri nets problems in simulation of industrial process. Is oriented on use functions of Automation Studio 3.0 in dynamically creating Petri nets on display of Power Panel. Is created several Petri nets for controling models.
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Creating communication between Power Panel
Motl, Jakub ; Malounek, Petr (referee) ; Chomát, Luděk (advisor)
Theoretic part of my bachelor's thesis deal with possibilities in communication between Power Panels, made by B&R company. Describes possible communication between more PLCs, visual facilities and list of B&R company products. Furthermore some technical literature, RS232 interface, Ethernet, Ethernet PowerLink, CAN, PVI manager. The Practical part describes how to make a communication using INA 2000 protocol dedicated RS232 interface, Ethernet net with star topology. Furthermore program solution with regard to snake game visualization draft.
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Control system for the hardening furnace
Chovanec, Jozef ; Malounek, Petr (referee) ; Mikšánek, Vojtěch (advisor)
Subject of this work is to create control system for abyssal hardening furnace and project regulation of temperature. The function and construction of furnace is introduced. Next there are compared currently installed control system B&R 2005 and designed system B&R X20. Part of the work is economic analysis . Temperature in the furnace is controlled by algorithm, which should accurately follow given temperature curve in each of six section in process of heating workpiece.
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Comparative study of discrete PSD controllers
Pelikán, Radek ; Malounek, Petr (referee) ; Pivoňka, Petr (advisor)
The aim of my bachelor's thesis was verification and comparison of heterogenous structures of discrete PSD controllers. First thing mentioned is method of converting continuous PID controllers to discrete PSD controllers. After that I described basic types and structures of discrete controllers. I verified the controllers using computer simulation and control of real systems. I described integral criteria of regulation quality and tried setting of controllers using Ziegler-Nichols method and on ITAE criterion minimum. I mainly focused at classic PSD controller and PSD controllers with filtration of derivative component in old and new design. All controllers were compared.
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Conrol of synchronous drives
Mrtvý, Bohuslav ; Malounek, Petr (referee) ; Pivoňka, Petr (advisor)
The document describe servo drive by B&R and the control algorithms with vector control. There is also mathematic model of synchronous motor, design of control the system of two connected motor and implementation these algorithms in to the PLC and Acopos. The Master’s Thesis contains confrontation of results of real system and ideal model.
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Adaptive optimal controllers with principles of artificial intelligence
Samek, Martin ; Malounek, Petr (referee) ; Pivoňka, Petr (advisor)
Master’s thesis describes adaptive optimal controller design and it’s settings. Identification with principles of artificial intelligence and recursive least squares identification with exponential and directional forgetting are compared separately and as part of controller. Adaptive optimal controller is tested on physical model and compared with solidly adjusted PSD controller. Possibilities of implementation of adaptive optimal controller into programmable logic controller B&R are show and tested.
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Adaptive controllers with principles of artificial intelligence and its comparison with classical identifications methods
Dokoupil, Jakub ; Malounek, Petr (referee) ; Pivoňka, Petr (advisor)
This piece of work deals with a philosophy of design adaptive controller, which is based on knowledge of mathematical model controlled plant. This master thesis is focused on closed-loop on-line parametric identification methods. An estimation of model´s parametres is solved by two main concepts: recursive leastsquare algorithms and neural estimators. In case of least-squares algorithm the strategy of preventing the typical problems are solved here. For instance numerical stability, accurecy and restricted forgetting. Back Propagation and Marquardt- Levenberg algorithm were choosen to represent artificial inteligence. There is still a little supermacy on the side of methods based on least-squares algorithm. To compare individual algorithms the grafical interface in MATLAB/Simulink was created.
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Adaptive controllers with principles of artificial intelligence
Pitra, Michal ; Malounek, Petr (referee) ; Pivoňka, Petr (advisor)
The diploma thesis is focused on an adaptive control, especially in a self-tuning controller area. The thesis is divided into two main parts. The first part deals with identification methods of the adaptive control. The recursive least squares algorithm and the neural network method are the most popular identification methods. These methods are contrasted and the identification quality evaluation is done. The second part compares various types of the adaptive controllers with a non-adjustable PSD controller. The adaptive controllers are investigated from the various identification method point of view. The user graphic interface was realized for the identification and regulatory part. The time behavior of system responses after incoming disturbance and dynamic process changes during simulation systems control is compared with a physical model connected to B&R PLC. The comparison is done with the application of Matlab/Simulink program.
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