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Accumulation of Energy from Renewable Energy Sources
Heller, Ondřej ; Radil, Lukáš (referee) ; Mastný, Petr (advisor)
The objective of the first part of master’s thesis is mapping the potential of various types of renewable sources in Europe and Czech Republic, especially solar energy, wind energy, water energy and biomass. There are described principals and ways of energy generation from these sources, brief overview of current technologies, and also their advantages and limitations. An important part is electric supply continuity from renewable sources, there are large differences and the resulting to restrictions on construction and connecting the units to the power system. In this work there are mentioned some impacts on network and rates of change of supply, some sources are also evaluated in terms of maximum power, that can be connected to the power system in our country. The conclusion of the first part is dedicated to energy storage technologies, which are suitable and usable for renewable sources, there are described their principals, properties, status of development and types of aplications, in which these technologies are used. This chapter also focusses on the price level of each technology. The second part of the thesis deals with 1 MWp on-grid photovoltaic power plant design. This design includes also the redox flow batteries accumulation, the first variant calculates on 24-hour steady energy supply, the second optimalized variant calculates on daily energy supply. There are the accumulation system costs estimated and also the payback period for the both variants. Additionally there is also determined minimum penalization for cost-effective operation. The last part is dedicated to changes of impact on the local grid and changes of system impacts, after the accumulation system is installed.
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Domestic electricity production from renewable sources
Halamíček, Milan ; Fiedler, Jan (referee) ; Pospíšil, Jiří (advisor)
The present bachelor thesis describes utilization of renewable resources, which can be used for production of electric energy. It presents three ways, one of them is wind power plant, the second is photovoltaic system and the last one is water power plant. There are suggested two ways of electric energy supply to family houses including economic evaluation.
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Optimization of operating heating and power plant units in the PS
Bezděk, Jakub ; Radil, Lukáš (referee) ; Mastný, Petr (advisor)
This thesis deals with the structure of the electricity transmission system in Europe and their cooperation. Furthermore, it also analyzes the basic types of power plants and heating plants, then describes the optimization of operation of the electricity transmission system, the system services, support services and providing cross-border provision of electricity. Finally, work is the definition of regulatory tools and the example shows the optimal power distribution of two specific blocks for a given load.
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Data Acquisition and Control System of Hydroelectric Power Plant Using Internet Techniques
Sattouf, Mousa ; Přikryl, Hynek (referee) ; Richter, Aleš (referee) ; Skalický, Jiří (advisor)
Vodní energie se nyní stala nejlepším zdrojem elektrické energie na zemi. Vyrábí se pomocí energie poskytované pohybem nebo pádem vody. Historie dokazuje, že náklady na tuto elektrickou energii zůstávají konstantní v průběhu celého roku. Vzhledem k mnoha výhodám, většina zemí nyní využívá vodní energie jako hlavní zdroj pro výrobu elektrické energie.Nejdůležitější výhodou je, že vodní energie je zelená energie, což znamená, že žádné vzdušné nebo vodní znečišťující látky nejsou vyráběny, také žádné skleníkové plyny jako oxid uhličitý nejsou vyráběny, což činí tento zdroj energie šetrný k životnímu prostředí. A tak brání nebezpečí globálního oteplování. Použití internetové techniky k ovladání několika vodních elektráren má velmi významné výhody, jako snížení provozních nákladů a flexibilitu uspokojení změny poptávky po energii na straně spotřeby. Také velmi efektivně čelí velkým narušením elektrické sítě, jako je například přidání nebo odebrání velké zátěže, a poruch. Na druhou stranu, systém získávání dat poskytuje velmi užitečné informace pro typické i vědecké analýzy, jako jsou ekonomické náklady, predikce poruchy systémů, predikce poptávky, plány údržby, systémů pro podporu rozhodování a mnoho dalších výhod. Tato práce popisuje všeobecný model, který může být použit k simulaci pro sběr dat a kontrolní systémy pro vodní elektrárny v prostředí Matlab / Simulink a TrueTime Simulink knihovnu. Uvažovaná elektrárna sestává z vodní turbíny připojené k synchronnímu generátoru s budicí soustavou, generátor je připojen k veřejné elektrické síti. Simulací vodní turbíny a synchronního generátoru lze provést pomocí různých simulačních nástrojů. V této práci je upřednostňován SIMULINK / MATLAB před jinými nástroji k modelování dynamik vodní turbíny a synchronního stroje. Program s prostředím MATLAB SIMULINK využívá k řešení schematický model vodní elektrárny sestavený ze základních funkčních bloků. Tento přístup je pedagogicky lepší než komplikované kódy jiných softwarových programů. Knihovna programu Simulink obsahuje funkční bloky, které mohou být spojovány, upravovány a modelovány. K vytvoření a simulování internetových a Real Time systémů je možné použít bud‘ knihovnu simulinku Real-Time nebo TRUETIME, v práci byla použita knihovna TRUETIME.
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The tooth pump in the turbine regime
Tyburec, Adam ; Dobšáková, Lenka (referee) ; Haluza, Miloslav (advisor)
The objective of this diploma study is to develop and secure production of gear turbine with very low specific speed in comparison with conventional turbines. The first part of the work deals with already performed research of similar hydrostatic turbines. It is followed by construction design, including complete drawing documentation. The production of the prototype is secured by an external company. Finally, an experimental measurement of the characteristics of the designed turbine is performed in the laboratories of Fluid Engineering.
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Design of a micro waterpower turbines for low head and low dicharge
Macek, Libor ; Fic, Miloslav (referee) ; Štigler, Jaroslav (advisor)
This diploma thesis discusses the issue of finding type of water turbine for very low heads and low discharges, which could be operated as mobile micro hydropower plant in island mode. Thesis deals with summary of appropriate choices of water turbine for needs of micro hydropower plant. Essential part of diploma thesis deals with design of optimized waterwheel. Waterwheel was chosen because commercial high-speed turbines have low efficiency for low heads. Waterwheel was manufactured and measured in laboratories of Fluid engineering. Measurement output was discharge and efficiency characteristic of turbine. The price calculation was made after manufacture.
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Hodnocení vodních elektráren v povodí Dyje
Zimek, Ondřej
The bachalor thesis on the topic "The Evaluation of hydroelectric power plants in the basin of the Thaya" deals with hydroelectric power plants around Znojmo and using their hydropower potential and possible negative impact on the environment. All dates were processed in cooperation with E.ON Trend, s.r.o. company with special software which monitors all selected hydroelectric power plants. This special software assessed different values in different months. It was used special expertises and surveys to identify possible negative impact on the environment. This expertises and surveyes was made for E.ON Trend, s.r.o. in the past. Thanks identified data is sure that construction and working several hydroelectric power plants has no negative impact on the environment. But in this case these hydroelectric power plants have very positive impact on the environment and make better the envitonment.
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Optimization of operating heating and power plant units in the PS
Bezděk, Jakub ; Radil, Lukáš (referee) ; Mastný, Petr (advisor)
This thesis deals with the structure of the electricity transmission system in Europe and their cooperation. Furthermore, it also analyzes the basic types of power plants and heating plants, then describes the optimization of operation of the electricity transmission system, the system services, support services and providing cross-border provision of electricity. Finally, work is the definition of regulatory tools and the example shows the optimal power distribution of two specific blocks for a given load.
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