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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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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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The concept of electric motors used in vehicles
Polnický, Vít ; Repka, Martin (referee) ; Böhm, Michael (advisor)
This bachelor’s thesis deals with the description of electric drives concepts in current vehicles. In the first part, the basic principle of the electric motor is explained, and different types of electric motors are described in detail. In the next part of the thesis, the electrified vehicles are divided into three groups according to the power share of electric motor for vehicle propulsion. The groups are further subdivided according to the powertrain arrangement in the vehicle, indicating the advantages and disadvantages of each concept. In the third part, specific vehicles from each group are presented and compared in terms of performance, range and price. Finally, the concepts are evaluated and a possible development is outlined.
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Design of a desk coin sorting machine
Uhrová, Simona ; Čípek, Pavel (referee) ; Svoboda, Petr (advisor)
The bachelor thesis demonstrates the design concept of a low cost electromechanically driven coin sorter that can be created by the utilization of additive manufacturing, specifically 3D printing. Technical drawing documentation of the chosen design concept is then provided as well as insight into the 3D printing process. In the conclusion, the working model of the coin sorter is created, and an analysis is offered of potential problematic areas as well as possible improvements and extensions.
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Design And Construction Of Electric Lightweight Motorcycle
Bartoš, Jiří
This work deals with designing and constructing of lightweight electro motorcycle. It has four parts. The first part deals with things connected to underframe. In the next part there are some information about traction motor. The third part deals with regulator. The last part is focused on things connected to batteries.
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Electrotechnical equipment of electric transport machinery
Václavík, Lukáš ; Balabán, Bedřich (referee) ; Huzlík, Rostislav (advisor)
This work is meant as overview of current technologies and trends in electromobils and hybrid vehicles. This work is divided in four parts first deal with components setting in vehicles and summarising differences, second part focus on components as electromotor, accumulators, third part focus on charging and refiling fuels and fourth deal with possibility of spreading charging stations in Czech Republic.
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Microprocessor controlled BLDC motor inverter realization
Mikuška, Martin ; Cipín, Radoslav (referee) ; Knobloch, Jan (advisor)
This bachelor’s thesis goes into electronic commutated motors, their inverters and specific parts of the general pulse converter. Next it is described step-down converters, push-pull converters and the principles that are supported by practical exercises. The next part describes the design of the power transistors driver and problems of galvanic separation by optocouplers.
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Suggestion of electric scooter
Lamberský, Václav ; Tůma, Zdeněk (referee) ; Synek, Miloš (advisor)
The topic of this master thesis is the design of electric scooter. In the first part of this thesis consists if research of used structural designs and driver types. In following chapters are calculations and selection procedures of the electric motor, batteries and other accessories. Results from previous chapters were used to created complete 3D model of scooter in SolidWorks software. Based on the model, complete technical drawings were created.
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Electric drive for motorcycles
Černošek, Martin ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
The diploma thesis is focused on rebuilding of the combustion engine powered motorcycle to the electromotor powered motorcycle. In the thesis is chosen the suitable electromotor, next is designed the accumulator system, then is created the construction design of location electric system in the motorcycle frame and at the end is made the strength analysis of the mechanical parts. For the construction design is created 3D model in SolidWorks. The diploma thesis is also focused on comparison the motorcycle powered by combustion engine and the motorcycle powered by electromotor in the Supermoto race.
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Modelling of linear power drive with DC motor for control purposes
Vrbka, Michal ; Březina, Lukáš (referee) ; Houška, Pavel (advisor)
In my diploma thesis, I developed the model of a linear actuator for the control purposes. The first part summarizes the literature research of currently available linear actuator systems. The work further describes some of the capabilities of the simulation environment Matlab which was used for the creation of the computer model of linear actuators. In the last part, this theoretical model is compared with already available physical model of the system.
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