|
|
Battery energy storage sizing optimization in industrial buildings with renewables
Prečuch, Martin ; Vrána, Michal (referee) ; Vojtek, Martin (advisor)
The aim of this work was to create an application, a software tool, which will allow to optimally choose the size of the battery storage, from an economic and technical point of view, using the calculation of energy and power balances. These calculations are based on input data for a defined period, object onsumption, battery storage parameters and photovoltaic power plant. In the theoretical part of the work, research was conducted to find suitable storage devices for industrial facilities and explore their potential applications. The third chapter covers the algorithmization and development of an application focused on peak shaving and reducing the reserved capacity of an industrial facility through battery storage. The chapter describes in detail the necessary input data for simulation, application development, and individual parts of the program are described using flow diagrams. Following this, the creation of the graphical user interface of the application and the economic analysis are detailed. The fourth chapter presents a case study with two scenarios. Based on the case study, the functionality of the application was verified, confirmed, and demonstrated.
|
|
|
Parking areas at BUT for energy use
Al Halabi, Enas ; Vrána, Michal (referee) ; Paar, Martin (advisor)
Diplomová práce se zaměřuje na koncept solárních carportů na parkovištích pro nabíjení elektromobilů (EV), popisuje jejich konstrukci, komponenty, konfiguraci a výhody. Práce zohledňuje potenciál EV pro poskytování služeb energetické síti, jako V2G, zdůrazňuje potřebu techniky inteligentní nabíjení, efekty kontrolovaného nabíjení, dále je přestaven největší realizovaný projekt solárního carportu v České republice. Hlavní částí práce je návrh tři solárních carportů pro vybrané parkovací plochy na VUT v Brně. Návrh a vyhodnocení solárních carportů s dobíjecími stanicemi pro elektromobily je provedená pomocí softwaru PV SOL.
|
|
|
Evaluation of possibility of modifying selected part of public lighting network for EV charging
Hýsek, David ; Vrána, Michal (referee) ; Baxant, Petr (advisor)
The master thesis deals with the concept of smart cities in the context of motivation for the use of the synergy of public lighting network and charging points. The thesis provides an overview of projects from the Czech Republic and abroad focusing on the adaptation of the urban public lighting network for charging electric vehicles. Different variants of charging station installations and their management are discussed. Another important topic is the selection of a suitable location for charging stations and the concept of synergistic connection of these stations with the existing public lighting network. The thesis proposes scenarios for using the existing public lighting network for charging electric vehicles and scenarios for bringing a parallel cable to this network in selected Brno locations. The aim is to optimize the efficiency and performance of the public lighting network and at the same time provide a charging infrastructure for electric vehicles. The results of the thesis represent a valuable contribution to urban planning and the development of smart cities that focus on sustainable and environmentally friendly mobility. The synergy between the public lighting network and charging points represents a potential for efficient use of infrastructure in the urban environment while contributing to the reduction of greenhouse gas emissions.
|
|
|
Analysis and Verification of Operating Characteristics of Grid and Hybrid Inverters
Vrána, Michal ; Braciník,, Peter (referee) ; Dvorský, Emil (referee) ; Mastný, Petr (advisor)
The thesis is an annotated collection of articles focused on the field of verification of inverter operating characteristics and their impact on the operation of the distribution system. The operating characteristics are assessed with respect to the national requirements in the Czech Republic. Within the framework of the solution, articles were published in foreign impacted and peer-reviewed journals and indexed proceedings of foreign and domestic conferences. The main result of the dissertation is the design and implementation of a laboratory workplace for verification of operating characteristics. For the workstation, software equipment was designed and implemented for testing process automation of both, the physical workstation and the virtual testing. By reconfiguring the workstation, it is possible to create a facility for simulating and verifying the effect of autonomous functions on the distribution system within the framework of experimental installation in laboratory conditions or field testing.
|
|
|
Connection of Solar Power Plant and Water management
Zajíček, Michal ; Vrána, Michal (referee) ; Baxant, Petr (advisor)
In the bachelor's thesis Connection of Solar Power Plant and Water management the author designs the technical solution of pump control using solar energy. The main reason is to make an automatic system for pumping the rainwater through filters due to increasing its quality. Powering the device with a solar power plant will reduce the energy requirements and will also make it possible to store surplus energy from the solar power plant into the potential energy of the water. The result of the work is the compact device with an automatic control system designed to control small 12 V pumps, theoretical design of the photovoltaic power plant to power the device and theoretical analysis of solar energy and water management issues.
|
|
|
Design of Loxone system installation control for a house with PV plant
Kořínek, Tomáš ; Vrána, Michal (referee) ; Bátora, Branislav (advisor)
This master's thesis deals with a management proposal of Loxone system installation for a family house with a photovoltaic power plant. The first part of thesis deals with the characteristics of the Loxone system and its individual devices. The second part is already focused on the design of the algorithm and the implementation of the lighting, shading, heating and indoor environment of the building control in the Loxone Config program.
|
|
|
Safety of off-grid hybrid energy system operation
Orság, Štěpán ; Vrána, Michal (referee) ; Morávek, Jan (advisor)
The thesis deals with the safety of hybrid systems in island operation. The safety requirements for electrical installation with photovoltaic system and protection against electric shock are discussed. Hybrid battery systems have a lower short-circuit performance in islanded operation, compared to parallel operation with the distribution grid, so the thesis focuses on the specifics of islanded operation and the use of protections that are part of the PV inverter or electrical installation. The work includes the design of test procedures and measurements on selected inverters with subsequent evaluation and recommendation of further protection measures.
|
|
| |
|
|
Analysis of floating photovoltaic usage in the Czech Republic
Al Halabi, Enas ; Vrána, Michal (referee) ; Paar, Martin (advisor)
Tato práce se zabývá technologií plovoucí fotovoltaiky, její strukturou, komponenty, vhodnými vodními plochami, výhodami a výzvami. Dále poskytuje přehled na její historie plovoucích elektráren a jejich nasazení na světě. Je popsáno základní hodnocení umístění pro instalaci FPV. Jako hodnocený vodní plocha byla vybrána vodní nádrž Nové Mlýny, v této lokalitě byl navržen a popsán plovoucí FV systém. V této studii je zmíněna srovnávací analýza s cílem porovnat konstrukci, náklady, provozní prostředí a výrobu elektrické energie plovoucího a pozemního fotovoltaického systému.
|
|
|
PV inverter and hybrid inverter test bench
Sedlačko, Jozef ; Morávek, Jan (referee) ; Vrána, Michal (advisor)
Electricity production from photovoltaic power plants has been one of the fastest growing energy industries in the last decade. Number of small power inverters working parallelly with the low voltage grid is growing. At the same time, the requirements for the correct behaviour of network inverters in the network by the distribution grid operators are also increasing. The thesis deals with creation of a workplace for testing the operational and technical requirements for micro-sources. The first part of the thesis consists of literature search of inverter demands according to the current rules for parallel production operation. The second part deals with the setting up of test procedures and automation. The last part evaluates selected tests of the functions of the inverters.
|
guest ::
RSS feed.