National Repository of Grey Literature 53 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Power Systems Ranges of Main Parameters
Řehořek, Tomáš ; Gála, Michal (referee) ; Paar, Martin (advisor)
The thesis deals with description of the power system, parameters of it’s components and the range of outputs and consumption. In the first part the structure of the power system is described as well as the fundamental division of electric grids. In this part the work also touches on the ways of supllying the elctric traction. Furthermore the amount of production and consumption is mentioned. In the second part this work focuses on description of selected components of the power system and their real parameters. Furthermore the work also touches on the matter of electromobility and battery energy storage systems. In the last part of this work a few simple methods of consumption estimation are presented. This work also includes two infografics, that describe the power system.
Comparison Potential Production of Electric Energy by Photovoltaic Sources for Municipalities with Population up to 3 000
Plaček, Martin ; Radil, Lukáš (referee) ; Paar, Martin (advisor)
The goal of this thesis is to inform the reader of upcoming trends in solar roof panels, and their usage in cities with less than 3000 inhabitants. This thesis also contains a list of selected photovoltaic tiles and panels and their parameters. Included is also a list of several free solar calculators, with one examplary processed house. The practical part includes three selected cities where the photovoltaic potential was evaluated by the method that was derived from norm ČSN EN 15316-4-3, and the overview of this data.
Potential Production of Electric Energy by Photovoltaic Panel and Tiles in Urban Area
Dvořáček, Jan ; Vrána, Michal (referee) ; Paar, Martin (advisor)
The bachelor's thesis deals with possible form of installation photovoltaic power plant on building, shading analysis and impaly possible way of calculation potential production of elektrical energy. In thesis is describe basic division and diferent methods of instalation photovoltaic systems. The following charter describing source of shading, shading analysis and effect of fading on photovoltaic moduls. The thesis include different way of calcuation potential production of elektrical energy by photovoltaic power plant. The practical part deals with the analysis of a selected area and the calculation of potential electrical energy using photovoltaic modules and photovoltaic roof tiles with chosen calculation method.
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.
Weak Points Analysis of Distribution Network in Municipality with High Numbers of Photovoltaic Sources
Sedlák, Petr ; Lunga, Jiří (referee) ; Paar, Martin (advisor)
The master‘s thesis deals with the issue of weak points of the distribution network in a municipality with high numbers of photovoltaic sources. Photovoltaic power plants are gradually being added to the current state of the electric power distribution network of a specific municipality, while changes in the network are being monitored. Due to the output of the highest possible power from the sources into the distribution system in compliance with the established rules, the thesis also describes network modifications. These established rules of connection and operation of resources in the distribution network and effects of injecting disturbances in the low voltage network are discussed in the theoretical part of the thesis.
The Long-term Energy Planning
Pallová, Ivana ; Paar, Martin (referee) ; Radil, Lukáš (advisor)
This bachelor‘s thesis deals with long-term energy modeling. The theoretical part of the thesis is devoted to the explanation and description of the main parts of econometric models and comparison of these models. Then explains a description of LEAP modeling software. The practical part is focused on data analysis and their use for creating model of the energy system of the Czech Republic. The next part describes the creation of the model with information about input data and their expected progression until 2040. The last part is devoted to control and evaluation of results from LEAP modeling software.
Potential Production of Electric Energy by Photovoltaic Power Stations on the Roof Installation in Municipality up to 3000 Residents
Štefek, Martin ; Ptáček, Michal (referee) ; Paar, Martin (advisor)
The aim of this bachelor thesis is to determine the maximum technical potential of photovoltaic roof power stations of the municipality with up to 3,000 inhabitants. The thesis proposes its own procedure enabling a quick determination of the maximum size of the installation for each house based on the ČSN EN 15316-4-3 standard. The proposed methodology is applied on the municipality Moravany u Brna. For overall estimation of the photovoltaic potential of the municipality, other methodologies using only statistical data are applied and compared with proposed methodology. Last section of the thesis deals with the estimation of the load caused by a large number of small photovoltaic roof installations.
Graphic Description of Electric Energy System in Selected Areas
Šácha, Tomáš ; Fiala, Zbyněk (referee) ; Paar, Martin (advisor)
The bachelor thesis deals with graphical description of power system for selected areas. Based on publicly available materials and materials provided by E.ON Distribuce, a.s., a graphic description of electricity consumption and performance of selected cities, municipalities and power lines are created. The thesis describes the structure of the power system and its main parameters, including the distribution of networks in terms of their arrangement. It also contains information on the selected municipality from the data provided by the Czech Statistical Office. Graphically processed consumption values, both selected cities and municipalities, as well as selected areas and also electric traction vehicles are shown.
Short Circuit Currents in DC Systems
Kolařík, Robin ; Geschwinder, Lukáš (referee) ; Paar, Martin (advisor)
The bachelor thesis deals with the analysis of short-circuit currents in DC systems. The thesis introduces the possibility of application of low voltage DC distribution in commercial and industrial buildings. The second part is focused to high voltage direct current transmission. The practical part deals with the calculation of short-circuit currents of individual elements and subsequently with short-circuit conditions in the DC network. At the end of the work are evaluated advantages and disadvantages between AC and DC voltage and suitability of use in given areas.
Battery Systems for Distribution Networks
Filip, Robin ; Radil, Lukáš (referee) ; Paar, Martin (advisor)
Bachelor’s thesis is focused on problematics of battery storage systems in distribution network. The thesis introduces methods of electrical energy storage with emphasis on battery storage systems. It also deals with possibilities of using these systems in the network. Additionally, an overview of current and planned projects with a description of the legislative environment of the area in the Czech Republic is included. The practical part deals with the design of battery storage capacity regarding to development of power consumption, electromobility as well as photovoltaics.

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