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Alternative Energy Sources and Their Integration into the Concept of Smart Grids
Kopička, Marek ; Procházka, Jiří (referee) ; Baxant, Petr (advisor)
This work deals mainly with electrical energy. In the first part is focused on alternative energy sources, and describes structure of consumption and production of electricity over the past few years, during which is focuses on renewable energy sources. In this context, assesses the conditions for alternative energy sources in the Czech Republic from the perspective of the legislative, as well as current status and potential of alternative energy sources and tries to predict the development of these issues. The next section describes the Smart Grids as a means to achieve these goals. There are presented the basic features of this system, its goals and challenges, a description of the integration of Smart Grids with other sources of electricity and the benefits of using Smart Grids both from the perspective of user and from the perspective of system. Other parts are focused on distributed control systems in the energy sector, its development and principle. The last part is devoted to consideration of the role of alternative energy sources and distributed generation in Smart Grids.
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Proposal of measures in the low voltage network for the implementation of renewable sources and electromobility according to scenarios NAP SG
Vojtěch, Jan ; Kučera, Michal (referee) ; Ptáček, Michal (advisor)
The thesis analyzes legislative and strategic documents of the European Union and the Czech Republic which set targets in environment and energy area in 2030, alternatively in 2040. The individual chapter is dedicated to national action plans, where the most important is National Action Plan for Smart Grids setting specific requirements for future development of smart grids. The thesis contains analysis of distribution network in the municipality of Následovice and simplifying assumptions for the implementation of calculation. There are also introduced scenarios which have been used for the calculation of the distribution network with its results. Potential defects of the distribution network are commented with suggested solutions. The calculations were repeated to verify the solutions. Results are recapitulated in an individual chapter. Graphical outputs of the calculations can be found in the attachement.
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The electric car as part of a smart home
Peichl, Ondřej ; Ušiak, Michal (referee) ; Štětina, Josef (advisor)
This thesis provides an overview of technologies that can be a part of an electric car. These technologies include Vehicle to Grid, Vehicle to Building, Vehicle to Home, etc. The principle, properties, possibilities of development and integration in the Czech Republic and in the world will be described for these technologies. The second part of the thesis will deal with the connection of an electric car to a smart home and its cooperation with other components of the smart home, such as home photovoltaic power plant, control system or wallbox. At the end of the thesis is designed a specific smart house, which was calculated the consumption of electricity for the household, for the electric car and also how much of this consumption can cover the home photovoltaic power plant.
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Electromobility, today and vision
Valíček, Roman ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The main target of this bachelor thesis is to create an overview of current and future status of electromobility in the Czech Republic, including an analysis of possible impacts of this developing field to other sectors, especially energy industry and ecology. This work is divided into several sections. The first part is research and it deals with general knowledge related to electromobility at first and then it analyzes the current situation in our country. The electric vehicle charging and electromobility support are discussed in detail. The second part of the thesis focuses on the influence of electromobility growth on the power system and on the electromobile emission footprint. These chapters are based on self calculations and the results are evaluated at the end. The conclusion summarizes the findings and there is a comment about upcoming development of electromobility in the future.
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Design of a passenger Quadcopter
Lupták, Pavol ; Karásek, David (referee) ; Křenek, Ladislav (advisor)
The subject of this master‘s thesis is the design of a passenger quadcopter, which is intended for transporting two passengers and luggage. Diploma thesis includes an analysis of the existing products and deals with further direction in the solved topic. The goal of this thesis is to create a conceptual design that respects the technical, ergonomic and aesthetic requirements. The proposal itself offers possible direction of autonomous passenger quadcopters in the future.
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Recuperation systems in automotive technology
Běhoun, Lukáš ; Repka, Martin (referee) ; Zháňal, Lubor (advisor)
The aim of this bachelor thesis is to examine the methods of energy recuperation in the automotive technology. The first section explores the historical development of the recuperation systems spanning from the end of the 19th century to the present day. The second section is following with the division of the recuperation systems in accordance with the method of their energy storage and their transmission. This is consecutively supported by three examples of use for each of the systems. The third section offers a comparison of the individual cumulative units. Furthermore, it offers a comparison of all the types of systems used in bus transportation. The fourth section analyses the fuel consumption by a bus without a recuperation system and by an identical bus with the Bosch Rexroth recuperation system. This is supported by calculations. Subsequently, the above systems are scrutinized from an economical point of view. The last part deals with the possible development of recuperation systems in the future.
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Design of Electric Ride-on Lawn Mower
Krulová, Karolína ; Jelenčík, Branislav (referee) ; Sládek, Josef (advisor)
The topic of this master thesis is the design of electric ride-on lawn mower. The main goal was to design an innovative garden machinery that will take the requirements of the private user into consideration of this type of equipment. The current market was thoroughly analysis and a questionnaire survey was compiled. The conclusions were to reduce the overall dimensions of the rider, simplify and lighten the design of the cutting system, design a seat that would be more breathable and comfortable in the summer months and replace the internal combustion engine with an electric one. The final product will be used by private owners of medium-sized and rugged gardens with an area of up to 1500 m2.
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Energy efficiency of hydrogen utilization in transport
Mikulenka, Karel ; Kučera, Pavel (referee) ; Vopařil, Jan (advisor)
This bachelor thesis analyses current possibilities of hydrogen usage in transport. Hydrogen is by scientific community viewed as a possible answer to ever growing emissions from transport and their negative affect on the environment. The work introduces the most significant advantages of hydrogen usage as a fuel in comparison to its counterpart combustion engine and battery vehicles. Two means of obtaining energy from hydrogen in a vehicle itself shall be described which are hydrogen combustion and fuel cells. Further shall be made analysis of current possibilities for potential end customer pertaining vehicle and fuel availability. In the end is given a general description of hydrogen transport implementation in Czech Republic and its energetic cost and efficiency within an overall hydrogen economy.
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Modeling of energy flows in the municipality with battery systems
Řehořek, Tomáš ; Krátký,, Milan (referee) ; Paar, Martin (advisor)
This thesis studies battery systems and possibilities of their utilization together with PV systems mainly for domestic purposes. Furthermore, the thesis deals with the impact of increased number of BEVs on load demand. The aim of the thesis is to simulate and investigate the power flows, within a selected grid, with high levels of PV generation paired with battery systems. The calculation of the power flows is performed in OpenDSS and the input data for the simulations are generated in Matlab. The theoretical part of the thesis describes the technology of the battery systems and how they operate. The thesis also partly touches on the use of battery systems for grid applications. In the practical part, an evaluation of simulations investigating the capability of battery systems to limit peaks of surplus generated energy is performed. As well as that the impact of increased load caused by BEV charging and the possibilities of reduction of this load via use of battery systems is also investigated.
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