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Examples of governings with predictive controls
Šalda, Zbyněk ; Švarc, Ivan (referee) ; Němec, Zdeněk (advisor)
This thesis deals with model predictive control principally Based Predictive Control (MPC). The first part describes the principle of predictive control, cost function, the choice of a constraints in regulation and the choice of weights. In the next section is an analysis system: a system with non-minimal phase (control water turbine), oscillating systems (trolley frame control) and system with a time-delay . In all of these systems is performed classical feedback control using PID control and concurrently regulation with the MPC. MPC is selected as the solution fy Mathworks Model Predictive Control Toolbox and Simulink. The results are then analyzed using the criteria of quality control.
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Mathematical Model of Biomass Boiler for Control Purposes
Máša, Vítězslav ; Klemeš,, Jiří (referee) ; Olehla, Miroslav (referee) ; Švarc, Ivan (advisor)
he thesis focuses on building of dynamic mathematical model of biomass boiler as a controlled system and the use of this model in practise. At the first part of the thesis the area of energy production using biomass is introduced and the current development at the area of the automatic control of biomass boilers with medium energy output (in units of MW) is described. Although the main topic of the thesis is the construction of model of biomass boiler for control purposes, thesis deals with technology of boilers and principles of its inner processes as well. Creation of the model comes out not only from these important findings, but also from experimental data collected during measurements in real operation. Heat and mass balance calculations were made according to these data and they serve to precise static properties of experimental unit for biomass combustion. Central part of the thesis presents development of the final model that resulted from balance calculations and from step responses of the system obtained by measuring. Built dynamic model is compared with experimental data through simulations in Simulink and verified. At the next part the model of controlled system is completed with control system and closed-loop control circuit is validated and verified by simulation. Then the design of new controller configuration, which improves the quality of control considerably, is presented. At the final part of the thesis, possibilities of other use of the model of boiler are given, both in control theory and in industrial practice.
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Adaptive controller with continuous system identification
Horňan, Bohdan ; Švarc, Ivan (referee) ; Lang, Stanislav (advisor)
This bachelor thesis is focused on the issue of adaptive controllers. It is divided into two parts: theoretical and practical. The theoretical part deals with identification methods of dynamic systems and methods of optimizing parameters of controllers. In the practical part is designed an adaptive self-tuning controller that is able to adapt to changes of parameters of the plant. The recursive least square method is used to determine a transfer function of the plant. Software solution of the adaptive controller is implemented in Matlab & Simulink.
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Algebraic methods of control for discrete control circuit design
Jurča, Petr ; Švarc, Ivan (referee) ; Davidová, Olga (advisor)
The bachelor essay deals with discreet regulation circuits where it is possible to use either a regulator with fast laid textures or a universal regulator. To propose an optimal regulator it is possible to use various algebraic proceeding methods which polynomial. In case of unidimensional task I converted the synthesis of discreet optimal control to solving inexplicit (Diophantine) polynomial quadratic which is possible to solve by various methods.
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Simple and branched control circuits
Holoubek, Lukáš ; Švarc, Ivan (referee) ; Davidová, Olga (advisor)
The goal of this thesis is a theoretical and practical comparison of simple and branched controlled circuits in relation to regulation ‘s quality. Theoretical part describes control, regulation, regulation ‘s circuit, regulator and its parameters setting. There are specific transmissions of the regulated system set on which a step signal response and a fault’s signal pulses are simulated on. Regulation’s quality results are closely analyzed and described using Matlab/Simulink program.
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Frequency methods used to discrete control systems
Grenar, Jakub ; Šeda, Miloš (referee) ; Švarc, Ivan (advisor)
The subject of this master’s thesis is „Frequency method for investigation discreet regulation systems“. It’s primary conversant of constructing frequency characteristics for discreet systems. The works has a two parts. The firs part indicates provides theoretical information and the basic relations needed to clarify construction of frequency characteristics continuous and discrete systems too. The second part includes main job description given by the headman of this thesis. It’s consisting of constructing catalogue of the frequency discrete characteristics for discrete systems and creation program for calculation and construction of this systems.
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Raspberry Pi: programming by means of Matlab/Simulink
Dadej, Vincent ; Švarc, Ivan (referee) ; Matoušek, Radomil (advisor)
The diploma thesis focuses on programming in the Matlab for the Raspberry Pi 3 platform. For the purpose of the presentation, there are two applications designed for Raspberry Pi that are using available hardware, camera and servos. The first application serves as colour object detecting and accurate tracking by using camera calibration. The second application serves as a face detection and recognition. These applications are implemented by modern methods and knowledge of computer vision. Tracking of the objects and face recognition are verified by an experiment that reveals the accuracy of the used methods.
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Catalog of standard logarithmic frequency characteristics
Velecký, Pavel ; Švarc, Ivan (referee) ; Davidová, Olga (advisor)
One of the options how to suggest the parameters of the continuous action controller is to use a method of standardized logarithmic amplitude frequency characteristic. It is a frequency method based on the choice of the form of standardized logarithmic amplitude frequency characteristic of open control circuit. I have created a catalogue of standardized logarithmic frequency characteristics in order to facilitate the work while using this method.
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Controllers design for plants with dead time
Matyáš, Miroslav ; Švarc, Ivan (referee) ; Davidová, Olga (advisor)
This bachelor's thesis covers the subject of a design of controllers for regulated systems with time delays. The theoretical part of the thesis describes suitable methods for the determination of parameters of continuous-action and digital controllers for those systems. Specifically, they are the Desired model method, the Multiple dominant pole method, the "Universal" experimental method, and the SIMC (SIMple Control) method. In the practical part of the thesis, the methods are applied to the controller parameters’ design, and regulation courses are modelled in MATLAB/Simulink software. At the bachelor thesis conclusion, the regulation is evaluated with regard to its accuracy and quality.
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Temperature control in a home smokehouse
Drulák, Milan ; Dosoudilová, Monika (referee) ; Švarc, Ivan (advisor)
This thesis deals with conversion of a home smokehouse with manual temperature control into a smokehouse with automatic temperature control. The thesis contains theoretical treatise on thermometers used for automatization. This part is followed by a practical part where is description of the smokehouse before automatic temperature control and a description of the smoke after installation of necessary parts to allow automatization of temperature control. In this practical part there also is a guide on how to work in Mosaic development environment created by Czech company Teco a.s. The result of this thesis is a functional prototype of a home smokehouse with automatic temperature control. The control program of this smokehouse with automatic temperature control can switch between two ways of temperature control (two-position control and continuous control) and web application located in local network shows valuable information about the temperature. Thesis contains described graphs of practical test of temperature control. Furthermore, the practical part notes important discoveries about automatic temperature control in the home smokehouse.
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