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Efficiency of hydrogen production by electrolysis
Pelán, Ondřej ; Špiláček, Michal (referee) ; Poláčik, Ján (advisor)
This thesis summarizes the basic information abouth hydrogen, its production, storage and energy utilization. The emphasis is put on alkaline electrolysis, the factors affecting its effeciency and the results of applying pulsating direct current. The end of the thesis attempts to experimentally prove the possibilities of regulating the performance of the alkaline electrolyzer.
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Evaluation of nonstandard operation possibilities of power sources in MV network
Čáslava, Jiří ; Opat, Jaroslav (referee) ; Topolánek, David (advisor)
This Master's thesis deals with solution of nonstandard operation connection of E.ON's 22kV distribution network in given area, considering the possibilities of operating dispersed electric power sources currently available, as well as possible power sources connected to the distribution network in the future and its potential operation limitation. A part of this paper is a description of calculation methods used for network evaluation in steady state, with emphasis on linear calculations used by E-Vlivy program, in which the operational possibilities are simulated. Therefore, a description of this program is also included. Suggested operation possibilities correspond with E.ON's valid distribution network operation rules. The outcome of this paper will serve to E.ON's 22kV network's controllers as materials for network operating in nonstandard operation states.
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Power optimizer design for on-grid photovoltaic systems for family houses
Trenčanová, Bianka ; Procházka, Petr (referee) ; Cipín, Radoslav (advisor)
This thesis deals with hardware design of an optimizer of energy flow from photovoltaic power plant to prevent an overflow of power made by plant to grid in grid-on system in case of excess of made energy. Theoretical part is aimed at photovoltaic, types of photovoltaic power plants and situation in Slovakia and Czech republic. Practical part is about designing the energy flow optimizer. It describes its main parts with descriptions of components' features, partial connection diagrams and finally connection diagram as a whole.
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System for control of high-frequency power source with reflected power measurement
Zoufalý, Ondřej ; Drexler, Petr (referee) ; Juřík, Karel (advisor)
This thesis briefly describes the function of the selected high-frequency technology and its use. Furthermore, the thesis contains a discussion of the method of designing a system for control of high-frequency power source with reflected power measurement, after which the selection of suitable components is carried out based on pre-selected parameters. Subsequently, the method of powering and cooling the system is proposed. This is followed by the actual assembly of the system and testing of its functionality and measurement of system parameters. In the last part, selected parts of the printed circuit board of this system are described and justified.
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Efficiency of hydrogen production by electrolysis
Pelán, Ondřej ; Špiláček, Michal (referee) ; Poláčik, Ján (advisor)
This thesis summarizes the basic information abouth hydrogen, its production, storage and energy utilization. The emphasis is put on alkaline electrolysis, the factors affecting its effeciency and the results of applying pulsating direct current. The end of the thesis attempts to experimentally prove the possibilities of regulating the performance of the alkaline electrolyzer.
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Power optimizer design for on-grid photovoltaic systems for family houses
Trenčanová, Bianka ; Procházka, Petr (referee) ; Cipín, Radoslav (advisor)
This thesis deals with hardware design of an optimizer of energy flow from photovoltaic power plant to prevent an overflow of power made by plant to grid in grid-on system in case of excess of made energy. Theoretical part is aimed at photovoltaic, types of photovoltaic power plants and situation in Slovakia and Czech republic. Practical part is about designing the energy flow optimizer. It describes its main parts with descriptions of components' features, partial connection diagrams and finally connection diagram as a whole.
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Evaluation of nonstandard operation possibilities of power sources in MV network
Čáslava, Jiří ; Opat, Jaroslav (referee) ; Topolánek, David (advisor)
This Master's thesis deals with solution of nonstandard operation connection of E.ON's 22kV distribution network in given area, considering the possibilities of operating dispersed electric power sources currently available, as well as possible power sources connected to the distribution network in the future and its potential operation limitation. A part of this paper is a description of calculation methods used for network evaluation in steady state, with emphasis on linear calculations used by E-Vlivy program, in which the operational possibilities are simulated. Therefore, a description of this program is also included. Suggested operation possibilities correspond with E.ON's valid distribution network operation rules. The outcome of this paper will serve to E.ON's 22kV network's controllers as materials for network operating in nonstandard operation states.
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