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Design of reconstruction of LV electrical installation in HV substation
Vašulín, Jakub ; Mastný, Petr (referee) ; Janík, Daniel (advisor)
The topic of this work covers a theoretical description of project design for reconstruction of high voltage distribution system point. The aim of the work is to prepare material on the level of detail design documentation which covers not only design itself but also a theoretical description of external influences, a discussion of TECOMA Foxtrot system facilities and a characterization of standard specifications for individual types of rooms. Aquired knowledge was used detail project documentation which is an integral part of this work.
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Electrical installation for a family house with automation elements
Souček, Tomáš ; Janík, Daniel (referee) ; Mastný, Petr (advisor)
The aim of this work is to familiarize with the implementation of power and data distribution and systems for automation of electrical installation. Furthermore, to define the principles necessary for the creation of the project documentation of the electrical installation of a family house. The first part of the thesis deals with the definitions and principles associated with safety and the methods of ensuring it, which must be taken into account when creating project documentation. This theses also deals with the conditions and selected methods of connection of the building to the low-voltage distribution network, methods of execution of high-current and low-current installation and systematic installation . The second part deals with the elaboration of a specific electrical installation project for a family house. The content of this point of the assignment is the design of the installation of the high and low-current circuits of the family house, including the systematic installation. It also includes the design of the electric switchboard, lightning protection system and the preparation of technical documentation in accordance with the applicable technical standards.
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Heat pump in cooperation with PV for family house
Drašar, Vojtěch ; Vrána, Michal (referee) ; Mastný, Petr (advisor)
The bachelor thesis deals with the design of a heat pump in cooperation with a photovoltaic system for a family house. The theoretical part describes the principles of the heat pump and the photovoltaic system. The thesis presents the methods of operation of the heat pump, the principles of building cooling, the connection of the PV system to the grid, or the methods of storing excess energy. In the practical part, the consumption of a typical family house has been determined by means of typical supply diagrams. The consumption is based on hourly statistical values for the year 2021. From the obtained values a pump was designed. Another objective of the work was the placement of photovoltaic panels on the roof. The power plant is considered as a hybrid, in order to maximize the consumption of the energy produced and the use of energy at the point of generation. For this, a battery system was also designed. The work includes an energy and economic evaluation, including the payback of the combination. For the economic evaluation, a subsidy from the New Green Savings 2021+ program was considered. The proposed solution has applications in both renovation and new construction, where the emphasis is on minimizing air pollutants and also the use of ecological resources.
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Project of 250 kWp PV power plant with energy accumulation system
Kovaľ, Nikodém ; Mastný, Petr (referee) ; Morávek, Jan (advisor)
This thesis is divided into three parts. The first part is focused on getting familiarization with the current requirements for connecting power plants to networks, their dispatch management and options for the construction of photovoltaic systems. The second part is focused on the design of a photovoltaic system with an output power of 250 kWp, including electricity storage. The last part is focused on the creation of implementation project documentation of FVS with battery storage system, which includes technical report, situation drawings, single-pole system diagram, diagrams of AC and DC switchboards, roof drawings, drawings of low-voltage and communication lines and budget.
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Design of PV plant with accumulation for commercial building
Jörka, Lukáš ; Morávek, Jan (referee) ; Mastný, Petr (advisor)
This Master´s Thesis deals with the design of photovoltaic power plant with accumulation for commercial building in the city of Holešov. The first part of the thesis describes the requirements for connection and operation of power supplies with inverters according to Annex 4 of the PPDS and the European Commission directive RfG. The second part of the work focuses on the theory of photovoltaic systems, while their basic concepts are introduced, the individual components of photovoltaic systems are described, and eventually, the issue of inverters dimensioning is discussed in more depth. In the practical part of this thesis, the design of photovoltaic power plant with accumulation using the PVSOL program is performed. Within the design, components for PV plant with accumulation are selected, the project documentation of PV plant for building permit is prepared and the energy-economic analysis of the proposed solution is performed.
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Cyclic tests of lithium storage systems
Koňak, Tomáš ; Mastný, Petr (referee) ; Morávek, Jan (advisor)
The bachelor’s thesis focused on problematics of cyclic tests of lithium storage systems. The thesis introduces the methods of accumulation of electricity. The practical part deals with the assembly of a workplace for the implementation of automatic discharging and charging cycles.
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Optimization of Thermal Power Plant Operation
Šimůnková, Radana ; Morávek, Jan (referee) ; Mastný, Petr (advisor)
The bachelor’s thesis Optimization of the operation of thermal power plants has four parts. The first part presents the principle of electricity production. The second part presents an analysis of the technological scheme of the thermal power plant and the possibilities of increasing the efficiency of production units. The third part presents a mathematical model of two blocks working in parallel. The fourth part contains an economic evaluation of the proposed mathematical model.
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Evaluation of the operating state of asynchronous motors of the Dukovany nuclear power plant by the method of frequency analysis of stator current
Štěpanovský, Libor ; Kasárník, Milan (referee) ; Mastný, Petr (advisor)
The masters thesis is concerned with the setting of limits and criteria, the design of database environment and the evaluation of the current state of motors of the important machines related to own consumption of the Nuclear power plant Dukovany. The first part of the thesis is a short description of induction motors, the evaluation method and the inventory of the observed motors related to own consumption of Nuclear power plant Dukovany. The second part of the thesis concerns the design of limits and criteria for evaluating the current state of these important motors. Finally, the thesis shows a short description of the electro monitoring system together with the description of the database environment created. In the supplementary materials of the thesis, there is a design of a protocol template for evaluation of the current state of the motor and a technical report template for regular evaluation in monitored areas MCSA (Motor Current Signature Analysis) of the state of the induction motors.
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Distribution system support by power management of battery systems in charging mode and charging systems for electric vehicles
Rodionov, Vladislav ; Mastný, Petr (referee) ; Drápela, Jiří (advisor)
The thesis focuses on the power management support of battery systems in charging mode and charging systems for electric vehicles in the LV network. The thesis includes an overview of the distribution network of the Czech Republic, means of voltage regulation and the existing legislative framework for the connection of charging systems. The thesis describes the methods of active and reactive power control depending on the voltage and frequency. The practical part focuses on the simulation of grid support at different penetration levels of BESS and EVC in MATLAB Simulink and the verification of the support function on a laboratory system. In the last part, the methods of implementing the control system for BESS and EVC operating in the LV grid are specified.
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