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Smart Grid - pokročilé řízení energetických sítí
MAREŠ, Jan
The subject of this master thesis is the characterization of an intelligent networks so-called Smart Grids in the energy industry and the realization of testing scenarios in a power grid simulator. The theoretical part maps the main specifications, communication principles, and architecture of Smart grid. The practical part describes the simulation of the power grid of small suburban area and the effect of electric vehicles and renewable resources on the grid. The results of the thesis are network status assessment and design of steps required for a successful wide deployment of electric vehicles and renewable energy resources.
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Negative impacts of renewable resources on environment
Kopeček, Marek ; Chýlek, Radomír (referee) ; Sitek, Tomáš (advisor)
Current society understands the need to protect the environment. Renewable energy resources are one of the major topics of environmental protection. Their benefits are reducing greenhouse gas emissions and reducing dependence on fossil fuels. The production process, operation, recycling, and possible accidents of renewable energy resources are investigated in each chapter. Attention was paid mainly to the most used renewable sources. Finally, the negative impacts are evaluated, and it is defined which renewable energy resources could be classified as ecological.
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Effect of distributed generation on medium voltage 22 kV distribution system operation with a new 110/22 kV feeder
Konopová, Tamara ; Bráblík, Libor (referee) ; Drápela, Jiří (advisor)
This thesis deals with the issue of power flow analysis in a medium voltage (22kV) distribution network with a focus on the influence of distributed energy generation recources. At first the issue of operation of distributed energy resources and their reverse effects on the distribution system is presented in the thesis. Furtherly there are described their operational conditions from the legislation point of view. The part dealing with calculation compares two network configurations in terms of power quality and how the power quality is impacted by distributed energy resources. The attention is given to voltage conditions, short-circuit power, power conditions, losses and flicker. The first configuration corresponds to the real situation in the network, the other one is describing the changes after the new 110/22 kV substation implementation to the power supply area and the overal change of network configuration. The network model and run simulation is done using the E-Vlivy program.
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Legal regulation of the renewable energy resources
Krupičková, Andrea ; Žákovská, Karolina (advisor) ; Damohorský, Milan (referee)
With the adoption of the Act on Promotion of Use of Renewable Energy Resources in 2005, the Czech Republic took a significant step forward to examine the economic field of energy in general in light of environmental and climate protection. With this act, the Czech Republic followed the example of other European Union member states in asserting the goal of reducing greenhouse gas emissions and seeking alternative energy resources in the spirit of the Kyoto Protocol obligations. The goal of this Master's thesis is to present and logically analyze the relevant legal legislation concerning renewable resources passed in the Czech law. The emphasis of this analysis of the Act No. 180/2005 Sb. on the Promotion of the Use of Renewable Energy Resources in the context of energy law, whereby the attention is placed on promotion of energy production, those in the Czech Republic represent two alternative schemes: "feed-in tariff" and "green bonus certificates." With the broad definition of renewable energy resources in the introduction, this thesis comprises a basic overview of this comprehensive legal problem. This thesis consists of five separate chapters, which are closely related.
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The Life Cycle of Solar Power, Efficiency and Return
Kubín, David ; Radil, Lukáš (referee) ; Macháček, Jan (advisor)
This master’s thesis named “The Life Cycle of Solar Power, Efficiency and Return” is divided into seven chapters and focuses on the utilization of solar radiation in photovoltaic power stations and solar thermal power stations. The first chapter of this thesis familiarizes the reader with issues concerning renewable resources of energy and presents an overview of the focus of each chapter. The following second chapter is occupied with a topical research of renewable resources of energy utilization in Europe. Further the author presents a brief glance back at the past of solar energy utilization and also a prediction of future solar energy utilization in the Czech Republic. The chapter named “Specification and parameterization of individual technologies” contains an overview of today’s most utilized photovoltaic cells and panels together with an overview of utilized solar collectors and solar thermal power stations. In the following chapter named “Concretization of typical applications and realizations of photovoltaic and solar thermal power stations and determination of all related parameters” the author describes further components of photovoltaic and solar thermal systems. The economical aspect of photovoltaic component production together with an overview of utilized photovoltaic technologies is presented in this chapter. The problem of recycling photovoltaic applications and the current legislative situation regarding this issue in the Czech Republic is also outlined within this chapter. In the fifth chapter of this master’s thesis the author presents mathematical models of a photovoltaic and a solar thermal power station with the focus on economic aspects of investment efficiency assessment. Within this master’s thesis a simulation program in the computational software program Mathematica was created by the author. This program allows a calculation of economic efficiency and return of photovoltaic power station investments. The results of executed simulations are presented in the sixth chapter of this thesis. The last chapter contains an appraisal and summary of results achieved by the author of this thesis.
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Wind power production for small-scale energy supply
Pavlik, Richard ; Chroboczek, Libor (referee) ; Pospíšil, Jiří (advisor)
The aim of this work is the issue of utilization of wind energy. At first, the cause of wind, measuring methods of wind direction and speed and the principle of utilization of wind energy by wind turbines are described. Subsequently, the structure of wind turbines, the construction of wind parks, the development of new types of wind turbines and the possibilities of energy accumulation are introduced. In conclusion, the concept and the economic evaluation of wind powered system for small scale energy supply is analyzed.
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Pile Foundations - Energy Piles
Hoza, Martin ; Leiter, Augustin (referee) ; Glisníková, Věra (advisor)
At a time when ecology and renewable energy sources come to the fore, the use of geothermal energy appears to be one of the suitable alternatives. The aim of this paper is to explain the function of ground source heat pumps, to mention factors affecting the efficiency of the system and discuss the technology of energy piles realization. This paper also focuses at risks associated with the soil temperature influencing and shows examples of realization.
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Renewable resources in the EU with focus on photovoltaics
Höll, Jakub ; Vošta, Milan (advisor) ; Kašpar, Václav (referee)
This bachelor thesis deals with the analysis of the energy situation in the European Union while focusing on renewable energy resources. Clasification of renewables, their history and use is described in the first part of the thesis. The second chapter is focused on the energy industry in the EU and the field of primary energy resources. It also analyzes the current situation, future and trends in the EU with relation to renewables. The final chapter deals only with the photovoltaic segment in the EU where is examined its history, current use and its perspectives, trends and potential in the future. The conclusion of this thesis is an analysis of the fotovoltaic situation in the Czech Republic, its progress and prediction for the future.
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