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Control of excitation of synchronous generator
Horník, Vincenc ; Červinka, Dalibor (referee) ; Huták, Petr (advisor)
The main focus of the work is to create the optimal design of the reconstruction of synchronous generator excitation system of small hydro power plants with regard to the economical and technical performance, description of synchronous generator excitation, possible technical solutions to the reconstruction of excitation systems and their driving.
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Design of a high-speed electrical machine.
Šolc, Martin ; Klíma, Jiří (referee) ; Mach, Martin (advisor)
This diploma thesis is dedicated to design of highspeed induction motor with power 30 kW, 60 000 rpm. In the beginning of the thesis basic problematic of highspeed motors, used materials and motor types is discussed. The practical part of the thesis concerns design of the motor itself, creating a model in ANSYS Maxwell software, performing several simulations and optimalization of the designed machine. In the last parf of this thesis each simulation is evaluated and the final model of the machine is introduced.
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Design and measurement of a small induction motor
Fišer, Jan ; Klíma, Jiří (referee) ; Mach, Martin (advisor)
This bachelor thesis deals with design and measurement of a small induction motor. The introduction describes a structure and an operating principle of the induction motor. The following part deals with analytical calculation of three-phase induction motor‘s properties. Next are executed an analytical calculations and a finite element method calculations by the Maxwell software. In the end are these calculations compared with results from measurement.
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Modeling and controling of a laboratory stand with an induction and DC motor
Musil, Pavel ; Pazdera, Ivo (referee) ; Knobloch, Jan (advisor)
This bachelor thesis deals with the theory of an asynchronous machine and the types of its management. It focuses on assembling a laboratory model with an asynchronous and DC motor connected via resolver on a common shaft. In order to set the model correctly, the asynchronous motor is first measured, the appropriate parameters are obtained and the model's behavior towards the real device is tested. The resulting part is a set of laboratory tasks possible for this model and equipment.
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Web Tool for Creation, Management, and Use of a Database of Sports Poses
Křivánek, Tomáš ; Tesařová, Alena (referee) ; Herout, Adam (advisor)
This paper is focused on two searching methods and how they can be used in any searching and in any web application. Two most important qualities of any search are speed and accuracy. One of the best methods in terms of speed is so-called live search. This method provides results immediately when the user starts typing their search expression. That is why in many cases, the user does not even have to finish their expression, because when seeing the result, the user can immediately access it. Search accuracy is often achieved by using keywords or some part of text. Another common way to organize and fetch documents are tags: a short string which identifies a post or a photo. Multiple tags are then used similarly to plain keywords. This work proposes to use tags as a new searching logical language, where presence and/or absence of tags can be required. For this purpose I created a simple logical language "Queries", because they can be used very similarly to database queries. In my case, the language and the user interface is made very simple so that a normal user can specify the query himself. This search tool is showcased in a web application focused around yoga poses. Both methods are used there -- the user can search in the yoga poses database by name or by the queries language.
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Object Oriented Library for Controlling an e-Puck Robot
Plátek, Ondřej ; Mráz, František (advisor) ; Černo, Peter (referee)
E-Puck is an educational robot with differential drive and it is sufficiently equipped with sensors. The result of present thesis is the C# object oriented Elib library, which allows to control an e-Puck robot from a host computer over the Bluetooth wireless technology. The model examples in the TestElib console application presents the usage of the Elib library in program for the e-Puck robot. Moreover, it offers a comfortable system of help and documentation. Enclosed sets of tools allows more effective debugging of programs, which use the Elib library.
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Design of a high-speed electrical machine.
Šolc, Martin ; Klíma, Jiří (referee) ; Mach, Martin (advisor)
This diploma thesis is dedicated to design of highspeed induction motor with power 30 kW, 60 000 rpm. In the beginning of the thesis basic problematic of highspeed motors, used materials and motor types is discussed. The practical part of the thesis concerns design of the motor itself, creating a model in ANSYS Maxwell software, performing several simulations and optimalization of the designed machine. In the last parf of this thesis each simulation is evaluated and the final model of the machine is introduced.
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Design of linear motor with permanent magnets
Čech, Jan ; Bulín, Tomáš (referee) ; Knebl, Ladislav (advisor)
The first part of this thesis deals with the study of linear motors. The introduction of the thesis deals with the brief description of the linear motor, including its accessories. This part explains principle of linear motors, their general advantages and disadvantages. The next section contains an overview and division of the currently used linear motors. Each type of currently used linear motors is briefly introduced and also its principle and characteristics are described, including its specific application. The second part of the thesis deals with the design of an equivalent magnetic circuit model of a linear iron-core linear motor. Hereafter, the proposed design will be used to simulate the distribution of magnetic flux in the linear motor. The evaluated flux-density distribution in the air gap is later compared with the results obtained with finite element method. The thrust is then calculated from the flux-density and the estimated value is compared with the value listed in datasheet.
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MIL real time simulation of electrical motors
Bartík, Ondřej ; Veselý, Libor (referee) ; Blaha, Petr (advisor)
The goal of this thesis is how to implement the two different types of the electric alternate motors in ZYNQ-7000 device for MIL real-time simulation purposes. The chosen types of motors are BLDC motor and AC induction motor. Mathematics models of these motor, the necessary changes for implementation purposes and the way how the models were implemented in ZYNQ-7000 device are described in this work. Three different experimental MIL simulation, using these motors ae described at the end of this thesis.
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