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Use of Photovoltaic Power Plant with Batteries for Warehouse and Office Spaces
Kořenek, Jan ; Vojtek, Martin (referee) ; Mastný, Petr (advisor)
This diploma thesis deals with the photovoltaic power plant in Zlín. Power plant is used for electricity supply of office building and stock. For better self-sufficiency there is designed battery system as storage for electrical energy which the object can not consume itself. In the theoretical part there are described development of photovoltaics and components used in power plants. Further there was described the building, construction of photovoltaic power plant and eventually also a subsidy program by which the project was financially supported. Main task in the practical part was to develop scripts in Matlab for evaluation of online measured data. Next point was an energetic evaluation of power plant operation. In the end there was calculated power plant return with subsidy support and without support. These calculations were done in PV SOL software. Eventually, there was evaluated how the system works and how the power generated by the photovoltaic power plant is used. In conclusion, there is summary of the measurements and calculations.
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Power inverter with active rectifier
Dvořáček, Daniel ; Červinka, Dalibor (referee) ; Rubeš, Ondřej (advisor)
This thesis deals with the principle of functions, constructions and possibilities of the control of inductions machines. There is also briefly described the issue of the power transducers from which the frequency converters are coming out, as well as is described here the process of designing of the power part of the converter.
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A frequency inverter based on Texas Instruments DSP
Vašíček, Adam ; Macho, Tomáš (referee) ; Valach, Soběslav (advisor)
This bachelor's thesis discusses a one-phase frequency inverter control board design. The thesis covers basics of schematics and printed circuit board design and describes several main parts of the control software. An attention was paid to ensure electromagnetic interference susceptibility. The board extension and refinements possibilities as well as its weaknesses in both hardware and software levels are also discussed.
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Photovoltaic power plants and their design
Albrecht, Daniel ; Walek, Agata (referee) ; Neuwirthová, Ludmila (advisor)
Tato bakalářská práce se zabývá fotovoltaickými elektrárnami a jejich návrhem. Významná část práce se věnuje především technologiím výroby a popisem typů a způsobu výroby jednotlivých druhů fotovoltaických článků. Práce se dále věnuje základním částem fotovoltaické elektrárny, jako jsou solární panely, baterie, regulátory, měniče, optimizery a transformátory. Součástí je také praktická část, pod níž patří kapitoly zabývající se podmínkami pro vhodné umístění elektrárny, dále faktory ovlivňujícími její budoucí energetický výnos a posléze už praktickým popisem jednotlivých komponent a součástí výstavby. Praktická část je ukončena porovnáním dvou již existujících elektráren, jenž jsou majetkem Geen Holding a.s., a kde autor práce popisuje, porovnává a hodnotí technické řešení projektů.
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Applying SolidWorks Flow Simulation for cooling system of the power converter
Matoušek, Patrik ; Vetiška, Vojtěch (referee) ; Dostál, Lukáš (advisor)
Thesis deals with the issue of cooling power converters. It describes the disposition of power converter M50, produced by ELCOM, a.s., and the distribution and origin of heat losses in the converter. The thesis then describes the process of creating a 3D CAD model of the converter in Solidworks and the procedure for heat simulation of the converter in default state and with cooling fan failures using Solidworks Flow Simulation. The thesis then evaluates the results of these simulations, and on their basis it suggests possible improvements in the design of converter‘s cooling system. These improvements are then evaluated in further simulations. The thesis then describes the verification of performed simulations by comparison with a temperature-rise test.
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Filtering structures for fotovoltaic power stations
Hruška, Petr ; Dostál, Tomáš (referee) ; Petržela, Jiří (advisor)
This thesis is dedicated to an issue of vibration of photovoltaic panels, which manifests itself primarily in the acoustic field. From the photoelectric effect is gradually getting through photovoltaic cell, panel, string, power plant to define the causes of the vibration. The aim of the work is to design electrical low pass filter that suppress disruptive elements, which prevents audible vibrations of panels and the whole system of photovoltaic power plants.
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Rooftop photovoltaic system and its return of investment
Burián, Michal ; Radil, Lukáš (referee) ; Pěcha, Jiří (advisor)
The Bachelor’s Thesis is focused on a potency of using the Rooftop photovoltaic system, like the investment project. The general principle of the photovoltaic transformation and eventual utility of a sun solar radiation in Czech Republic is described in the first part of the Thesis. Furthermore there is a overview of approachable technology of the photovoltaic systems. The third part contains a review of inverters and photovoltaic systems integration. Following the complete concept of the Rooftop system and the calculation of capital expenditure for the selected property. Finally, the last part of the Thesis attend to summarize produced aggregate energy, the profit assignment due to service system. The main aim is to evaluate the Rooftop photovoltaic system and its return on the investment due to operating costs.
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The Model of HVDC Line for Laboratory
Mička, Dominik ; Paar, Martin (referee) ; Krbal, Michal (advisor)
The objective of this bachelor thesis is to provide comprehensive information of HDVC transmission and to create laboratory model of HVDC connection. The first part of the thesis presents its pros and cons and provides basic description of individual parts related to the transmission of electrical energy. The thesis also shows proposed design model of HVDC connection, used as a guidance for work in lab environment. Provided are calculated parameters and operational options of working prototype model. Subsequently, the prototype is created and measured test results are compared against calculated and simulated values.
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