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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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Search on land-use planning documentation and evaluation of suitability of the location of the upper reservoir of pump storage power plant
Lebeda, Dawid ; Julínek, Tomáš (referee) ; Špano, Miroslav (advisor)
This bachelor thesis is focused on the evaluation of the suitability of the location of the upper reservoir of the pumping hydroelectric power plant and on the route of penstocks in terms of intervention in the territory. In the introductory theoretical part the pumping hydroelectric power plant is described generally, mainly in terms of its arrangement and functionality. Further, the theoretical part describes the characteristics of the area around the port town of Vaňov, which is situated in the northwest of the Czech Republic, where the power plant should be placed. In the practical part of this thesis the location of the upper reservoir and two variants of the route of the penstocks are evaluated. Using base map and land-use planning documentation an analysis and evaluation of the intervention in the current territory was carried out. Based on the evaluation, a more suitable option of the route of the penstocks is chosen and recommended.
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The storage water plants problem appreciation
Archalous, Jakub ; Himr, Daniel (referee) ; Sloupenský, Zdeněk (advisor)
This bachelor’s thesis deals with the use of hydropower. It gives an overview of hydroelectric plants and describes mechanisms that convert water energy into electric energy. The most attention is paid to the principle and operation of pumped storage power plants and the machinery used there. Also the efficiency of the pumping cycle at Dlouhe Strane power plant is calculated.
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Feasibility study of the pumped storage power station
Školník, Martin ; Golík,, Pavel (referee) ; Dráb, Aleš (advisor)
This master’s thesis deals with the feasibility study of the pumped-storage hydropower plant. Design is divided at three parts – upper water-reservoir with water intake, penstock with cabel tunnel and mechanical room with four Francis reversible turbine. Study contains engineering report, hydraulic calculations, photodocumentation and drawing documentation.
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Pump storage station
Šimek, Petr ; Sloupenský, Zdeněk (referee) ; Kubálek, Jiří (advisor)
This bachelor thesis deals with the functions of hydro-power plants, describes the various machinery and their distribution according to the parameters of use. Outlines the calculation in the design of hydraulic machines. There are also descriptions of machine layout and their use in praktice. For the particular case, there is prepared hydro power plant Dlouhé stráně. Related topic that is included here, the electricity system and the daily load diagram.
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The Conversion Efficiency of Different Kinds of Energy into Electrical Energy and the Possibility of its Accumulation
Ostruška, Jan ; Bartošík, Tomáš (referee) ; Macháček, Jan (advisor)
The thesis deals with the issues of the conversion efficiency of different kinds of energy into electric energy. Firstly, the thesis presents a brief introduction into types of energy sources and their capacity. Then, conversion efficiency of particular direct and indirect conversion is scrutinized, pointing to factors which affect conversion efficiency. The next chapter deals with the possibilities of accumulating electric energy. These are analysed as far as conversion efficiency is concerned as well and the end of the chapter concludes with comparison of these particular possibilities. Booth parts of the process – power generation and its accumulation – are connected in comprehensive scheme of energy conversions. The thesis develops on this scheme by mathematic description of its components and by designing a simulation programme, which would show the flow of energy in the scheme.
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Using asynchronous doubly fed generators for hydroelectric plant
Cudrák, Martin ; Paar, Martin (referee) ; Radil, Lukáš (advisor)
This bachelor’s thesis deals with the use of a double fed induction machine for pumped storage power plants. Firstly, the thesis describes principles and advantages of this generator and its beneficial properties when used with PSP. Subsequently, the use of DFIG in PVE in the world is researched and the parameters of these PSP and benefits of using DFIG are identified. Furthermore, the issue of using these generators in current and planned PSP in the Czech Republic is descibed. is further assessed. In this context, planned sites for the new construction of PSP in the Czech Republic are mentioned in the bachelor’s work. And then, on the specific example from abroad, it is descibed which circumstances must be taken into account when reconstructing of existing PSP.
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Feasibility study of the pumped storage power station
Kratina, Jakub ; Duchan, David (referee) ; Dráb, Aleš (advisor)
Pumped storage power stations are an integral part of all power systems. At pre-sent, they represent perhaps the only option to accumulate more surplus electricity. It is also built as a proven regulatory element of the power system. The content of this bachelor thesis is a study of feasibility of the pumped storage power stationt (PVE Podlešín) in the Vaňov area. The introduction deals with the issue of pumped srorage power station. Then the design of a technical solution for the power plant construction follows. The main part of the study is the elaboration of drawing documentation and technical reports.
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Models of the power set water turbine control
Prudek, Stanislav ; Matoušek, Radomil (referee) ; Němec, Zdeněk (advisor)
This thesis deals with modelling and simulation of the power set of pumped storage hydro plant. This power set control opening/closing the stator blades of Francis reverse turbine in Dalesice. It is a positional servomechanism where input signal is desired value of turbine opening. The goal of this work is to create computer modell of this power set in Matlab-Simulink. This modell must be comparable with properties of real power set and after modification usefull to other water power plants. Characteristics of computer modell can be verify with real measuring.
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The design of the repair of the asphaltic lining of embankment dam
Dostál, Kryštof ; Rudolfová, Mirka (referee) ; Říha, Jaromír (advisor)
This diploma thesis deals with the design of repairs to the asphalt concrete facing of the upper reservoir of the pump-storage power station Dlouhé Strána. The first part summarizes the knowledge about asphalt concrete facings, experience from foreign constructions and a description of the damage on this hydraulic structure. The second part defines the variants of repairs and the selection of the most suitable on the basis of decision analysis.
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