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Possibilities of using a photovoltaic system in a family home
Herník, Martin ; Linda, Jakub (referee) ; Toman, Filip (advisor)
This bachelor thesis deals with the design of a photovoltaic power plant that will meet the needs and conditions of a specific family house. The design includes photovoltaic options such as battery and non-battery system solutions. In this work, the selection of appropriate components was made, where the emphasis was on achieving optimum system performance and minimizing costs while maintaining given efficiency and reliability. Finally, the economic evaluation of the two solutions in terms of cost and paybacks is assessed. The final design is proposed in the light of the current energy price situation and the continuous forward movement of PV technology.
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Design of a PV plant for a family house
Kalousek, Stanislav ; Vaněk, Jiří (referee) ; Jandová, Kristýna (advisor)
This bachelor thesis deals with the design of a photovoltaic power plant in combination with a heat pump for a family house. The theoretical part of the thesis includes a detailed analysis and analysis of currently used photovoltaic and heat pump technologies with the use of possible government subsidy programs. Furthermore, the practical part describes the layout of the family house for which both systems are proposed. Based on the knowledge gained, the design of the heat pump and photovoltaic power plant is proposed, including a system for the storage of electrical energy or the sale of surplus to the distribution grid. In addition, a simulation of the operation of the PV power plant is performed in the professional design environment PV*Sol Premium, including a 3D model, module shading, economic and energy analysis of the PV power plant design. Finally, an evaluation of the combination of a PV plant with a heat pump and a comparison with a commercial design from a professional PV and HP installation company is made.
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PV power plant project - category A1/A2
Pacalaj, Timotej ; Drápela, Jiří (referee) ; Morávek, Jan (advisor)
This thesis deals with the design of a category A1/A2 photovoltaic system for a specific building. The aim was to meet the requirements of the investor and the energy needs of the building. The thesis includes a research of PV connection requirements (PPDS-4, RfG), a review of available technologies and components, and system design using PVSOL software. The work also includes the production of project-level documentation for implementation, including a technical report, a single-pole schematic and a situation drawing. In addition to the technical aspects, an economic evaluation of the project is carried out in the thesis, providing the investor with an overview of the return on investment and financial efficiency of the PV plant. As a result, a comprehensive proposal for the implementation of a category A1/A2 PV plant is presented, taking into account both technical and economic aspects.
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Design of a photovoltaic power plant for a family house in Opava region
Pekárek, Marek ; Jandová, Kristýna (referee) ; Vaněk, Jiří (advisor)
The bachelor thesis covers the design of a photovoltaic power plant with battery storage for a family house. In the theoretical part is mentioned principles of photovoltaic effect and the function of photovoltaic cells. The work deals with the description of the photovoltaic panels and entire systems of photovoltaic power plant used nowadays. Theses includes informations on legislative conditions and available subsidies related to the installation of photovoltaic power plants in the Czech Republic. In next part of the thesis, I focus on the design of a photovoltaic power plant for a selected family house with a measured annual energy consumption. The system design methodology includes calculation of the required power output of the plant, selection of the appropriate panel placement, component selection, and design of electrical wiring. The work also includes an economic analysis and a calculation of the return on investment, considering the available energy products from energy suppliers in the Czech Republic.
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Cybersecurity analysis of hybrid photovoltaic systems for single-family homes
Svoboda, Vojtěch ; Kohout, David (referee) ; Mikulášek, Michal (advisor)
The bachelor thesis deals with analysis of the cybersecurity of photovoltaic systems for single-family houses. The aim of the thesis was to introduce hybrid photovoltaic systems, possible cyber attacks on these systems and to perform a sample attack on a PV system. The thesis consists of a theoretical and a practical part. The bachelor thesis contains four chapters. The first and second chapters describe the concepts related to cyber attacks and PV systems. Chapter three deals with the Solax X3-Hybrid inverter, its characteristics, vulnerabilities and the communication protocols used. The fourth chapter includes testing of the LAN and Wi-Fi dongles through which the inverter communicates.
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Photovoltaic system in cooperation with a charging station for electric vehicles
Zerzán, Jan ; Morávek, Jan (referee) ; Mastný, Petr (advisor)
The thesis deals with the design of photovoltaic power plant with accumulation and charging station for an electric car for a family house located in the Pardubice region. First, the individual parts of photovoltaic system are theoretically described and then the requiments for connection to distribution system are described. At the end of the theoretical part, the subsidy program is described. The practical part consists of the design of the photovoltaic system and subsequently it’s project documentation. Another topic in the thesis is the simulation and control of the energy flows of the designed PV plant with batteries and EV charger in Matlab. Towards the end of the thesis an economic balance sheet is created.
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Universal inverter for multi-phase low-voltage drives
Pitner, Tomáš ; Pazdera, Ivo (referee) ; Knobloch, Jan (advisor)
The diploma thesis deals with the design and construction of a six-phase low-voltage high-current inverter. Overall design and calculation of the power components of the inverter including its cooling is performed, along with the control circuitry including the inverter leg drivers, the driver and autonomous control of the brake chopper and the interface circuit between the external control circuit and the drivers. In relation to the power components design, research of current distribution between paralleled MOS-FETs and paralleled inverter legs is conducted, leading to the theory of symmetrizing current transformers, for which numerical simulations and verification measurements are done. The thesis also deals with design of a DC bus capacitor -- dependence of the ESR on frequency and temperature for an electrolytic capacitor is measured and the harmonic spectrum of the capacitor current for SVPWM is calculated by numerical simulation. Finally, the construction of the inverter and its testing and measurements are described.
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Integration of Grid-Forming and Grid-Following inverters into the grid
Sýkora, Jan ; Klusáček, Jan (referee) ; Radil, Lukáš (advisor)
The thesis deals with the integration of Grid-Forming and Grid-Following generation plants into the grid. The key parts of this thesis are the assessment of the current state and development of the resource base of the Czech Republic, a critical study of the limiting share of resources lacking natural inertia for maintaining stable and safe operation of the grid and the definition of the nature of inverter resources in "Grid-Forming" and "Grid-Following" modes. The main contribution of the work is the development of models of "Grid-Forming" and "Grid-Following" inverters in order to verify the capability of operation in grid-on mode and their response to disturbances in the system.
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Conveyor Inverter - Design Lifting Mechanism
Zálešák, Martin ; Kašpárek, Jaroslav (referee) ; Škopán, Miroslav (advisor)
I am concern with a proposal of conceptual solution of Conveyor Inverter in my bachelor work. This Conveyor Inverter is used for the change of the direction europallet about 90° between roller and chain conveyor according to given technical parameters. My bachelor work contains complete 3D proposal, constructional and functional solutions which are based on checking calculations. Lifting of the Conveyor Inverter is done using a leverage mechanism of electric motor.
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