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Analysis of State Automatas for Embedded Applications
Maťas, Marek ; Blaha, Petr (referee) ; Václavek, Pavel (advisor)
This master’s thesis deals with analysis of state machines for embedded applications. The issue of finite-state machine is described theoretically. The document also contains a proposal for funding for modeling finite state machines in Matlab/Simulink. It is designed data representation of finite automaton. Over this data representation algorithm of minimization is applied. Finally, the algorithm is implemented to generate code in C language.
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BLDC motor control using LabView FPGA
Ruhás, Sándor ; Pohl, Lukáš (referee) ; Blaha, Petr (advisor)
This thesis focuses on BLDC motor control algorithms with model based design approach. Models and control algorithms were programmed in LabView, the NI MyRIO was used as a hardware platform. For hall-sensor feedback controlled application an already finished power inverter was used from a Honeywell rotary actuator. For sensor-less motor control an indirect sensing of BEMF signal is applied using motor phase current measurement. The time-critical parts of the algorithms are programmed for FPGA, the non-time-critical parts are programmed for LabView Real-Time module.
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Laboratory tasks for Amira DTS200
Sikora, Jan ; Pohl, Lukáš (referee) ; Blaha, Petr (advisor)
In this work is introducing the laboratory system Amira DTS 200. It concerns of a system of 3 communicating vessels, pumps and pressure liquid level sensors. At this system are make several task on identification and regulation liquid level. System is simulated and controlled in Simulink diagram. Control is real-time via the Matlab Real- Time toolbox. System is identified by the help of analyses physical equation and their transferring to Simulink blocks. Some unknown parameters are experimentally measured. In regulation tasks is solved linearization, various basic methods of controller design and their using. Tasks include few check questions for students.
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Identification of AC induction motor parameters
Křížek, Tomáš ; Václavek, Pavel (referee) ; Blaha, Petr (advisor)
This thesis describes and realizes (in program Matlab/Simulink and in the microcontroller Freescale 56F8346) one off-line identification method of AC Induction motor parameters which are necessary to implement the field-oriented control strategy. The identification metod identify leakage inductance, magnetizing inductance and secondary time constants. The presented method is evaluted, advantages and disadvantages of this method are evaluated with reference to their possible use in real-machine. The experimental results and schemes which are presented demonstrate the feasibility methods. The thesis is dividend in seven chapters. Second chapter describes the basic principle and model AC induction motor. Third chapter generally describes identification methods. Fourth, fifth and sixth chapters deal with method which is based on a previous work of the authors [4] and [5].
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AURIX target in MATLAB Simulink
Chromiak, Michael ; Pohl, Lukáš (referee) ; Blaha, Petr (advisor)
This diploma thesis deals with the implementation of SIL and PIL simulation for the microcontroller Aurix TriCore TC277D performed in the Matlab Simulink. The realization of the simulation represents, among other things, the implementation of the simulated model into the microcontroller, as well as the creation of an interface for the communication of the microcontroller with the Matlab Simulink. The accuracy of SIL and PIL simulations was verified by comparing the simulated waveforms from the simulation in Simulink. The simulated model used a thermal model of a car cabin created in the previous bachelor's thesis of the author of this diploma thesis. The model in TC277D, as well as the configuration for SIL / PIL is created for use with the C programming language. The work also includes instructions according to which the model and configuration can be modified so that the simulations can be performed on any device containing the necessary software. From the comparison of the simulated data is it clear that the created configuration can be used for SIL or PIL simulation.
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Marketing Strategy Proposal for a Company Entering the Polish Market
Bui, Viktor ; Blaha, Petr (referee) ; Chlebovský, Vít (advisor)
Diplomová práce se zabývá návrhem marketingové strategie pro vstup společnosti UGO Trade s.r.o. na zahraniční, konkrétně na polský trh. Návrh je reakcí na silné postavení společnosti na českém trhu s čerstvými šťávami a snaží se najít cestu k dalšímu rozvoji společnosti. V práci je za pomocí analýz vyhodnoceno jak interní, tak i externí prostředí společnosti. Finální návrh řešení je čerpán především z uvedených analýz, kde jsou navrženy kroky, dle kterých by se společnost měla držet, aby na zahraniční trh úspěšně vstoupila. Dále je v návrzích vypracovaný zjednodušený finanční plán pro první rok působení společnosti na trhu a plán pro další rozšíření restaurací do ostatních měst.
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Modeling and Control of AC Electric Drives during Fault Conditions
Kozovský, Matúš ; Glasberger, Tomáš (referee) ; Kuchař, Martin (referee) ; Blaha, Petr (advisor)
Dizertační práce se zabývá modelováním a řízením elektrických pohonů během poruchových stavů. Práce se obzvláště zaměřuje na více-fázové motory. První část práce se zabývá matematickými rovnicemi obecného více-fázového motoru a následným odvozením n-krát troj-fázového zapojení motoru. Modely v dq souřadnicovém systému a modely ve statorových souřadnicích jsou navrženy pro simulaci chování motoru během poruchových stavů. Další část práce se zabývá analýzou poruch ve více-fázových motorech s využitím matematických modelů. Různé vnitřní struktury vinutí motoru jsou analyzovány z pohledu možného řízení během poruchového stavu. Taktéž je prezentováno chování těchto různých struktur motoru během poruchových stavů. Předmětem analýzy jsou elektrické poruchy vinutí motoru a elektrické poruchy výkonové elektroniky. Poslední část práce se zabývá testováním navrženého řídícího algoritmu a navržených kompenzačních strategií pro poruchy na reálných motorech. Pro testování byl použit segregovaný dvakrát troj-fázový motor a experimentální motor s odbočkami pro emulaci poruch vinutí. Provedené testy prokázaly, že vhodně navrhnutý motor v kombinaci se správným řídícím algoritmem a výkonovou elektronikou dokáže zaručit kontinuální běh pohonu i během poruchy.
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Proposal and Economic Evaluation of the Communication Mix for the Galerie Orlí
Havlínová, Sabina ; Blaha, Petr (referee) ; Mráček, Pavel (advisor)
The subject of the bachelor´s thesis „Proposal and Economic Evalution of the Communitacion Mix for the Galerie Orlí“ is an analyse of the current situation and the proposal for its improvement through various instrument of the Communitacion mix and Economic Evalution. Bachelor´s work contains of three parts. In the first part I teoretically explain marketing and communication mix. In the second part I will analyze the Galerii Orlí and in the third section I will give suggestions to improve the occupancy and attandance of customers in the building and finally I all economically evaluate.
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Mixed criticalities in motor control applications on Zynq platform
Pamánek, David ; Veselý, Libor (referee) ; Blaha, Petr (advisor)
This thesis contains introduction to PMS motor control using development board ZedBoard with Xilinx Zynq-7000 SoC. After that, there is a description of development environment Vivado and other modules. Finally, it contains description or created modules in Vivado environment which were combined together with peripheral drivers to demonstrate field oriented motor control algorithm of small PMS motor.
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Compensation of Nonlinearities in AC Motor Control Algorithms
Buchta, Luděk ; Kuchař,, Martin (referee) ; Glasberger,, Tomáš (referee) ; Blaha, Petr (advisor)
Analysis of the dead-time effect and other nonlinearities of the voltage source inverter was carried out in the introduction of the doctoral thesis. Three compensation strategies for vector controlled PMSM were proposed based on the analysis. The voltage disturbance observer with cost function of current errors is based on the model of PMSM, known machine parameters and easily measurable quantities. The second observer which estimates the dq- axes currents and the value of the voltage error with one parameter only is designed based on the harmonic analysis and Kalman filter algorithm. The third method combines an adaptive approach with feedback and voltage disturbance observer that is based on the PMSM model. Furthermore, the two compensation methods for vector controlled induction motor were proposed. In the first case, the standard compensation strategy is extended by a harmonic compensator that suppresses the residual 6th harmonic component in dq- axes currents. The last strategy detects the polarity of the estimated phase currents that are obtained by the Kalman filter. All compensation strategies have been verified by MATLAB/Simulink simulations and by experiments on real drives.
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