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Feasibility study pumped storage hydropower plant in a particular locality
Vaněk, Michal ; Štigler, Jaroslav (referee) ; Hudec, Martin (advisor)
Electric energy storage represents an area, which needs to be further developed in order to accommodate more installed capacity of wind and solar power plants in the electric grids. Pumped hydro energy storage still remains ahead of other storage technologies in terms of achievable storage capacity. However, environment protection which is one of the obstacles for further PHES development in Europe causes significant reduction of suitable sites. It is therefore useful to examine also those sites, which seem to be less favourable for PHES at the first glance. This thesis deals with a feasibility study of a PHES on place of a former graphite surface mine. The thesis includes computation of basic capacities, choice of a suitable machine arrangement and introduction into PHES feasibility issues in electric grids. Two possible solutions of a smaller PHES that differ in their capacities were suggested based on available materials about the site as well as on available materials from Francis pump turbine model research. In case of both solutions a binary machine set is used and the available capacities are in small tens of megawatts. However, there is a wide head variation at the site, which causes significant power variation. Concerning the feasibility of the PHES, it is very uncertain that the participation in the day-ahead electricity market, would provide enough revenue to cover operation and capital costs. A following economic analysis investigating the capital costs of this particular PHES would be beneficial, as well as more detailed design of the reservoirs.
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Control system for DC motors
Mikuláštík, Jiří ; Burian, František (referee) ; Kopečný, Lukáš (advisor)
This bachelor thesis deals with design of a control system for DC engines MCCRA12MP3N and MCCRA12MP. This system will be used to control a chassis and will allow smooth speed control of it. Serial interface will also be able to receive the desired and send out the current RPM values.
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Radio Controled Tracked Vehicle Model
Ctibor, Jiří ; Knobloch, Jan (referee) ; Klíma, Bohumil (advisor)
The aim of the bachelor thesis is the design and creation of manufacturing documentation DC drive for the tracked vehicle model with remote control, its design, programing and inspirit. To create a manufacturing documentation it’s needed to be familiar with the design program for printed circuit boards Altium Designer. Program of the microprocessor will be created in CodeWarrior development environment in the C language. To design circuits were used generally datasheets of components. The proposal consists of several functional peripheral units that provide various functions needed. For control the circuit is used a digital signal processor aimed at applications in the motor drives.
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Mobile robot control system
Jiruška, Jiří ; Kříž, Vlastimil (referee) ; Hynčica, Ondřej (advisor)
This thesis deals with wireless mobile robot control. The thesis is divided into two main parts. The first part deals with design and implementation of communication protocol based on IEEE 802.15.4 providing communication between robot and PC. The topic of the second part is mathematical description of DC motor and rpm controller design.
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Raspberry Pi-Based Motor Control Platform
Janíček, Libor ; Šimek, Václav (referee) ; Bidlo, Michal (advisor)
This bachelor thesis aims on the use of selected types of electromotors on Raspberry Pi platform for educational purposes. The theoretical part describes individual types of motors and the possibilities of their control. In the practical part is documented the connection of electric motors and microcomputer. For this work were selected four different types of motors: stepper, servomotor, brush DC and brushless DC. The microprocessor acts as a controller for motors and can connect e.g. monitor and mouse to control the graphics application for engine control.
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Design efective power speed controller for 3-phase motor
Uchytil, Filip ; Hanák, Pavel (referee) ; Lattenberg, Ivo (advisor)
This paper deals with the regulation of revolution of the asynchronous three phase engine with the frequency transformer. Firstly we will look into individual types of engines, the ways of regulation of the engines, the measuring of contemporary voltage and current at the engine and programming the ATMEGA64 microprocessor. The supervision is beeing handled by the PWM signal, which ensures low consumption of our circuit. The outputting part is comprised by the MOSFET transistors. The thesis devotes to communication of the ATMEGA64 processor via the USB port. The transmission ratio, voltage and even the contemporary current is displayed on the LCD monitor. The outcome of this thesis is the effective regulation of the asynchronous three phase engine, with the possibility of tracking all of the parameters mentioned above which are shown on the LCD display.
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Feasibility study pumped storage hydropower plant in a particular locality
Vaněk, Michal ; Štigler, Jaroslav (referee) ; Hudec, Martin (advisor)
Electric energy storage represents an area, which needs to be further developed in order to accommodate more installed capacity of wind and solar power plants in the electric grids. Pumped hydro energy storage still remains ahead of other storage technologies in terms of achievable storage capacity. However, environment protection which is one of the obstacles for further PHES development in Europe causes significant reduction of suitable sites. It is therefore useful to examine also those sites, which seem to be less favourable for PHES at the first glance. This thesis deals with a feasibility study of a PHES on place of a former graphite surface mine. The thesis includes computation of basic capacities, choice of a suitable machine arrangement and introduction into PHES feasibility issues in electric grids. Two possible solutions of a smaller PHES that differ in their capacities were suggested based on available materials about the site as well as on available materials from Francis pump turbine model research. In case of both solutions a binary machine set is used and the available capacities are in small tens of megawatts. However, there is a wide head variation at the site, which causes significant power variation. Concerning the feasibility of the PHES, it is very uncertain that the participation in the day-ahead electricity market, would provide enough revenue to cover operation and capital costs. A following economic analysis investigating the capital costs of this particular PHES would be beneficial, as well as more detailed design of the reservoirs.
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Raspberry Pi-Based Motor Control Platform
Janíček, Libor ; Šimek, Václav (referee) ; Bidlo, Michal (advisor)
This bachelor thesis aims on the use of selected types of electromotors on Raspberry Pi platform for educational purposes. The theoretical part describes individual types of motors and the possibilities of their control. In the practical part is documented the connection of electric motors and microcomputer. For this work were selected four different types of motors: stepper, servomotor, brush DC and brushless DC. The microprocessor acts as a controller for motors and can connect e.g. monitor and mouse to control the graphics application for engine control.
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Radio Controled Tracked Vehicle Model
Ctibor, Jiří ; Knobloch, Jan (referee) ; Klíma, Bohumil (advisor)
The aim of the bachelor thesis is the design and creation of manufacturing documentation DC drive for the tracked vehicle model with remote control, its design, programing and inspirit. To create a manufacturing documentation it’s needed to be familiar with the design program for printed circuit boards Altium Designer. Program of the microprocessor will be created in CodeWarrior development environment in the C language. To design circuits were used generally datasheets of components. The proposal consists of several functional peripheral units that provide various functions needed. For control the circuit is used a digital signal processor aimed at applications in the motor drives.
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Mobile robot control system
Jiruška, Jiří ; Kříž, Vlastimil (referee) ; Hynčica, Ondřej (advisor)
This thesis deals with wireless mobile robot control. The thesis is divided into two main parts. The first part deals with design and implementation of communication protocol based on IEEE 802.15.4 providing communication between robot and PC. The topic of the second part is mathematical description of DC motor and rpm controller design.
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