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Iverter for three-phase motor
Mikuška, Martin ; Červinka, Dalibor (referee) ; Knobloch, Jan (advisor)
This master’s thesis goes into design of particular circuits for three phase inverter. Inverter’s control is ensured by digital signal controller MC56F8013 with his program. Principle of control is suggested for individual motors. Inverter design considerate universal use and capability for any three phase motor. Particular blocks are compatible each other.
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Positioner for Solar Panel with Power Efficiency Optimizing
Kreysa, Karel ; Punčochář, Josef (referee) ; Šebesta, Jiří (advisor)
This thesis is focused on design and prototyping of solar panel position control system for an obtaining of the maxima renewable energy from sun. In this thesis, various ways of solar panel positioning are considered and analyzed. Consequently, a construction arrangement of the positioner is presented. It is mechanically adapted to obtain the maximum efficiency in typical environment corresponding with the Central European geographical latitude. Different methods of sun monitoring are considered and analyzed. On the basis of this analysis, a proper prototype of sun monitor for exact positioning with disturbance filtering has been constructed. Following part of work is devoted to stable, fully automated, control subsystem for reliable functionality of solar system. A suitable microprocessor with a robust firmware has been implemented to this control unit. Finally, system parameters measurement and closing analysis of gained renewable energy and backflow computation is presented in the end of this diploma thesis.
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Trends in the development of hybrid vehicles
Šebesta, Filip ; Pech, Ondřej (referee) ; Štětina, Josef (advisor)
This bachelor is aimed on making a survey of modern electric drives and hybrid cars. For each kind of drive out their properties, structural design, usage, advantages and disadvantages. It also describes new trends and technology of hybrid vehicles. In conclusion, the comparison of the advantages and disadvantages of hybrid drives and internal combustion engines. Assessment of the availability and economy of operation.
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Mobile Wood Splitter
Felcman, Miroslav ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
The main aim of the bachelor thesis is to design a mobile horizontal woodlogs splitter according to preset parameters. The part before the main design of a splitter is focused on different types of mobile splitters with the subsequent focus on the individual structural design of horizontal splitters. The next part is dedicated to design and calculation of a hydraulic circuit of the splitter that generates the required cutting force. There is a calculation of final splitting force and other working properties for all individual components of hydraulic circuit. The individual components of the splitter are stressed by the splitting force. There is a strength check of exposed parts in the last part of the thesis. The work also includes drawings of selected parts.
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Cement worm conveyor
Fránek, Martin ; Malášek, Jiří (referee) ; Škopán, Miroslav (advisor)
This bachelor project contains of a detail and design of a sloping cement worm conveyor. The project consists of technical specifications and drawing documentation. The technical specifications deal with basic design, calculations and stress analysis. The drawing documentation reflects the main assemble conveyor, a bill of material and welding assembly of the spiral worm.
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Cable winch
Kudláček, Miroslav ; Kašpárek, Jaroslav (referee) ; Malášek, Jiří (advisor)
The goal of my bachelor´ s thesis is to find a construction solution for a cable winch for a safe take-off of model gliders of a wingspan of maximum 5 m, a weight of 5kg and with a maximum take-off speed of 17 m.s-1. The thesis includes a project of a winding drum, including a control calculation, alternatives, the choice of a drive unit and a ductile element and a project of a frame.
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Alternative Drive of Automobile
Dubský, Jiří ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This bachelor work deal with problems alternative drive for automobile with narrower intent on hybrid drive. Features run - down and description possible options for drive cars. Further is focused on cars with hybrid drive and on problems hereof unconventional drive with presentation characteristic feature, advantages and disadvantage.
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The redesign of the compressor for electromotor driving
Mikulka, Vít ; Venclík, Jiří (referee) ; Mazůrek, Ivan (advisor)
This bachelor thesis deals with redesign of the compressor for electromotor driving. First part focuses on the principle of compressors, their development and division. The next part describes a compressor MK 100 produced by Benda kompresory Ltd. company. The technical solution of its redesign for 2,2kW electromotor propulsion with maintaining a rotation speed mode of original Honda engine is explained in the last part. This compressor should be used in its redesign version at FME BUT in Brno.
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Sacristian bell operation control by programmable logic controller
Křížek, Ladislav ; Marada, Tomáš (referee) ; Němec, Zdeněk (advisor)
The bell is described, its parts and constructive suppositions for the right function in this work, sacristian bell operation control with hand-working and with the rotating electromotor. Programmable logic controller machine SIEMENS Simatic S7-200 CPU 221 is also described, which is the part of ringing machine in Bukovinka’s church. This ringing machine and especially the mode of both bells have specific defect. According to owner´s wishes and instructions were two variants prepared for this ringing machine to improve the working of couple bells. One of these variants was tested and just tuned at the ringing machine. This one variant follows the owner´s wish, works in Bukovinka´s church till now.
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