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Smart Home
Konstantinov, Glib ; Musil, Petr (referee) ; Mlýnek, Petr (advisor)
The bachelor’s thesis deals with the analysis of intelligent devices and the possibilities of their usage in the household. Furthermore, the possibilities of using electricity from a photovoltaic power station and their comparison in terms of financial savings and efficiency of use are described. Moreover, in the theoretical part, a smart metering is described and methods of monitoring electricity consumption from classic electricity meters are presented. The practical part focuses on measuring the consumption of electricity by home appliances using a smart plug with the aim of their categorization, measuring the quality of electricity using a quality monitor MEg44PAN. The output of the bachelor thesis is the visualization of ways how intelligent elements can be implemented into existing buildings, smart homes and various combinations of appliances and resources.
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Stochastic Optimization Models in Energy Industry
Studený, Vojtěch ; Cabalka, Matouš (referee) ; Popela, Pavel (advisor)
This diploma thesis addresses the modeling of electricity production from rooftop photovoltaic power plants. The aim of the work was to find out how the input parameters affect the return and to find out the optimal conditions for achieving the shortest return time. The model is created in Microsoft Excel and GAMS. The inputs include the current conditions of the New Green Savings grant program. The work separately examines systems without energy storage and systems with batteries. Both systems are optimized and then the change in return depending on random variables is determined. The results show a lower payback period for battery systems, while meeting the subsidy conditions at the same time with lower acquisition costs.
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Design of protection against lightning and data distributions photovoltaic plant
Manduch, Viliam ; Bátora, Branislav (referee) ; Radil, Lukáš (advisor)
This thesis deals with the problems associated with the lightning. It deals with the stablishment, descriptions and analyzes of risk the living organisms and objects are facing. The work focuses on the description and implementation of protection against these adverse effects. Its objective is to devise a system for lightning protection for chosen PV power plant to meet the requirements of standard of EN 62305. The work is also the analysis of shadow effects in the collecting system for PV power systems.
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Creation of laboratory exercises for Renewable sources of energy
Bajgl, Tomáš ; Jandová, Kristýna (referee) ; Křivík, Petr (advisor)
This diploma thesis deals with the transformation of solar and wind energy into electrical energy by using a photovoltaic panel and a wind turbine. The work gives insight into the Czech Republic’s issue of energetics in the context of historical development, the current state, and the expected future development. The primary attention is given to the renewable sources - the solar energy and wind energy. Basic principles of creation and manipulation of solar and wind energy are described in this work. Two laboratory tasks are created for the Renewable Energy Sources' class as a part of the practical part.
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Partial Solution of Hybrid System with Low-Temperature Fuel Cells and Renewable Sources
Ptáček, Michal ; Mišák, Stanislav (referee) ; Tlustý,, Josef (referee) ; Matoušek, Antonín (advisor)
The thesis deals with the principle functions of low-temperature fuel cells with proton exchange membrane (PEMFC), photovoltaic sources (PVPP) and wind energy sources (WPP), along with solving their detailed mathematical expressions. In this work, the individual sources and their simulated models are analyzed in depth. The actual simulation is preceded by familiarization with important historical milestones in the development of fuel cells. Furthermore there is a basic classification of fuel cells and the characteristics of the cells used in the energy sectors. The text also provides information on projects that address the implementation of PEMFC as a primary or supplementary source of energy. Along with outlining the options for PEMFC as a perspective hydrogen technologies in the near future, the basic methods of hydrogen production and storage options are presented for the complexity. The work is exclusively focused on improving PEMFC mathematical models that under the hybrid system cooperate with renewable energy sources (RES). Part of the theses contains a short review of run or modeled concepts of hybrid systems in the energy sector. Using these models the main deficiencies of the models or of the whole PEMFC system can be identify. Specifications of the deficiencies lead to the creation of a new advanced dynamic PEMFC model that allows an analysis of the development of electrical and non-electrical quantities using long term tests. Furthermore, the thesis presents results of the experiments of thermal and dynamic behavior PEMFC, which were obtained from the additionally extended model with a reformer and the DC/DC converter. In this text there is a model of a photovoltaic module created, which is based on the nominal values parameterization. The model is subjected to basic experiments in which measured hydrometeorological data are used. If the hybrid system utilizes renewable energy sources, it is good to know the evolution of atmospheric conditions in the installation of these resources. Specifically for PVPP, publicly available databases containing information about solar radiation levels can be used for the selected location. Public databases are often used for initial design and manufacturing options for PVPP. An evaluation of the relevancy of public databases is performed based on a long-term observation of real measured data. Furthermore, these data are used for experiments on the photovoltaic module. Partially the text addresses the issue of the wind energy sources, however, it is simulated only on a simplified model of WPP. Created models of subsystems can be generally implemented as partial inputs hybrid systems in the future work. The thesis was developed at Centre for Research and Utilization of Renewable Energy (CVVOZE) with the financial support of the National Programme for Sustainability and the Ministry of Education, Youth and Sports of the Czech Republic under the project no. LO1210 - Energy for Sustainable Development and the project no. FEKT-S-14-2520 - New Technologies for Sustainable Development of Electrical Power Systems. The thesis was also generated under the project no. TA03020523 - Dynamic model of distribution network with the financial support of Technology Agency of the Czech Republic.
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Design of photovotaic power plant monitoring
Lahvička, Juraj ; Wasserbauer, Vojtěch (referee) ; Morávek, Jan (advisor)
This work is aimed to design monitoring system for fotovoltaic power plants, which is based on a PLC. Work contains options, methods and provides the solutions available for measurement, either the electrical or physical parameters of panels or surroundings. The design is made for certain assignment. The result is functional system for monitoring fotovoltaic panels and parameters of surroundings.
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Rationalization of the concept of photovoltaic power station connection
Svozil, Marek ; Otava, Lukáš (referee) ; Blaha, Petr (advisor)
This masters thesis addresses the racionalization of the concept of photovoltaic power station connection. A way of compensation valuable components involvement standar- tizovaným inverter controlled by a microcontroller. Also includes the measurement of voltage and current using a microcontroller. The output voltage of the DC/DC con- verter is controlled by the variable duty cycle of the PWM signal generated by the microcontroller ATmega32.
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Využití dat digitálního modelu povrchu 1.generace pro výpočet potenciálu solární energie v zástavbě
Veličková, Monika
This thesis deals with the calculation of the potential of the solar energy using the data from airborne laser scanning and the digital surface modelling. The situational model has been set up for Vrbno pod Pradědem town lying at foothills of Jeseníky mountains in Moravian-Silesian Region. The aims of the thesis are by ArcGis measure the surface of the roofs suitable for installation of solar panels, our value of solar radiation and calculate the potential nominal power of that installation .Then find out how much of the surface of the agricultural land would take up a solar power plant with the same nominal power.
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Stochastic Optimization Models in Energy Industry
Studený, Vojtěch ; Cabalka, Matouš (referee) ; Popela, Pavel (advisor)
This diploma thesis addresses the modeling of electricity production from rooftop photovoltaic power plants. The aim of the work was to find out how the input parameters affect the return and to find out the optimal conditions for achieving the shortest return time. The model is created in Microsoft Excel and GAMS. The inputs include the current conditions of the New Green Savings grant program. The work separately examines systems without energy storage and systems with batteries. Both systems are optimized and then the change in return depending on random variables is determined. The results show a lower payback period for battery systems, while meeting the subsidy conditions at the same time with lower acquisition costs.
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Ekonomické dopady podpory výroby energie z fotovoltaických článků v České republice
Krška, Štěpán ; Hrubý, Zdeněk (advisor) ; Cahlík, Tomáš (referee)
v Abstract The bachelor's thesis focuses on the generation of energy from photovoltaic cells in the Czech Republic and calculation of costs resulting from a support of renewable energy sources. Second part, following a short introduction, contains a brief description of the energy market in the Czech Republic and definitions of renewable energy sources. Third part covers photovoltaic energy in general. It deals with its historical development, technology and potential in the Czech Republic. Fourth part concerns with a legislation and contains a basic overview of the energy legislation of the Czech Republic and the European Union. Fifth part elaborates on the potential of other renewable sources in the Czech Republic and based on expert studies outlines their possible future development. Sixth part comments on the situation of photovoltaics in other states and brings a view of the support of renewable sources in Germany, Spain and Italy. Seventh (analytical) part deals with an analysis and calculations of the costs of the support of individual renewable sources including photovoltaics, cogeneration and secondary resources. The thesis is ended with a conclusion summarising the main results of the work.
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