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Dissertations / Theses on the topic 'Fotovoltaické'
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1
Gottwald, Petr. "Měnič pro fotovoltaické panely." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242113.
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Tato práce se zabývá návrhem výkonového měniče určeného pro použití ve fotovoltaických systémech. Klíčovým je použití programovatelného hradlového pole (FPGA) pro realizaci řídicích funkcí. Do detailu jsou diskutovány aspekty návrhu spínaných měničů a na základě takto získaných poznatků je zkonstruován funkční vzorek měniče.
2
Bidlová, Jitka. "Fotovoltaické články v architektuře." Doctoral thesis, Vysoké učení technické v Brně. Fakulta architektury, 2010. http://www.nusl.cz/ntk/nusl-233220.
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Nowadays there are more and more installations of renewable sources of energy. One of them is changing of sunlight into electric energy by using photovoltaic cells. Installation of photovoltaic systems into buildings and landscape is becoming modern approach to architecture and urbanism. It creates new architectonic expression - "solar design" and brings not only the energy profit but successful substitution for traditional materials and its usable properties.
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Provodová, Eva. "Podnikatelský plán fotovoltaické elektrárny." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-4069.
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Within this thesis I elaborated a business project of a solar power station, which could be used both as a decision tool for realization or non-realization of this project in practice and as the documentation for an application for a bank loan. The thesis consists of two main parts: the theoretical and application part. The theoretical part describes the structure of the business project and the principles for its setup. The application part contains the real business project of the solar power station.
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Kozumplík, Miroslav. "Studie efektivnosti chodu fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220165.
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The master’s thesis deals with study the effectiveness of operation of photovoltaic power station. The theoretical part describes the legislative steps that led to the development of photovoltaic power stations, not only in Czech Republic but throughout Europe. The following is a review of the issue of photovoltaics, which includes the development of photovoltaics in the world, research of photovoltaic power stations in the Czech Republic and technology of photovoltaic power stations. At the end of the theoretical part is a list of methods to evaluate efficiency investments. The practical part includes a description of the selected photovoltaic station Zakřany 5.4 MWp, financial projection and economic evaluation of the real operation and there is also explicit evaluation of the economic efficiency of the project.. The comparison of the projection and the real operation and the possible negative influences affecting the power station are in conclusion.
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Svozil, Marek. "Racionalizace konceptu připojení fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221277.
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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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Nováček, Richard. "Malé a mikro fotovoltaické systémy." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-254480.
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Master thesis deals with photovoltaic components and their principles. Evaluate the types of photovoltaic systems and their impact on the transmission system. The thesis deals with financial support to small and micro-photovoltaic systems, which can be used in terms of legislation of the Czech Republic. There are also described the changes in the amendment to the energy act and effect on the price of electricity in households. Compared with the domestic photovoltaic rest of the world and the view of the German energy concept. Part of the theoretical design of a hybrid photovoltaic plant, including the use of heat pump. Thesis deals with using hybrid photovoltaic plant and economic viability of the proposed system. The last part deals with the implementation of the proposed system and assesses the true value from those anticipated in the design.
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Svozilová, Petra. "Podnikatelský záměr výstavby fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2010. http://www.nusl.cz/ntk/nusl-264867.
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The master thesis is a proposal of the business plan for building-up solar photovoltaic power plant. The first part includes presentation of businessman and industry analyses. Theoretical basis are offered in the second part of this thesis. The next part analyzes conditions of business sector, legislative conditions and then current situation of the company is evaluated by financial indicators. After that proposal of investment in photovoltaic power plant, economical parts follow. At the end of the thesis an evaluation of the proposed solution is presented.
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Rákosník, Milan. "Hodnocení efektevity výstavby fotovoltaické elektrárny." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-16610.
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The main objective of this thesis is to provide management of specific company with valid information concerning intended investment in construction of a small photovoltaic power plant. Valuation of the investment is done using methods: payback period, discounted payback period, net present value, internal rate of return and profitability index. There is a comlete sensitivity analysis included in the thesis. Besides the valuation itself, the thesis provide also relevant information about the company, legal environment, czech and european renewable energy market and current state of the project.
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Marková, Lucie. "Hodnocení investičního projektu fotovoltaické elektrárny." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-73961.
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This thesis is divided into three chapters. The first chapter defines the objective of the work. The second section summarizes the theoretical and methodological part. Theoretical and methodological part deals with analysis of the area, preparation and implementation of the project, methods of evaluating investment and defines a project risk. The third part is the part of the application. It is about putting theoretical knowledge into practise. The third chapter contains an analysis of the area, description of the company, economic valuation and asessment of investment risk.
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Nádlerová, Simona. "Hodnocení investice do fotovoltaické elektrárny." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-197059.
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The purpose of this diploma paper is to present economic models used to evaluate the investment and its implementation in calculating merits of investment in photovoltaic power plant. It consists of theoretical and practical part. Most importantly, the discounted cash flow method is used to evaluate the investment. To calculate the impact of potential adverse scenarios, cash flow streams of each of them were multiplied by their probabilities. Next stage of the paper provides sensitivity analysis for major risk factors. Finally, the breakeven point was determined and presented as a subsidiary case for investment decision.
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Novák, Petr. "Hodnocení fotovoltaické elektrárny ve firemním areálu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413222.
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The diploma thesis is focused on the evaluation of a photovoltaic power plant in the company premises. The first chapters briefly discuss the theory of electricity generation using photovoltaic panels. It describes the principle of operation of photovoltaic panels, history, production, etc. In the practical part of the thesis we focus on the evaluation of the company's photovoltaic power plant when comparing real data with simulations.
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Mrázek, Dalibor. "Ekonomická stránka a rentabilita fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218889.
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At the beginning of the submitted work, I dealt with the study of various types of photovoltaic panels, their diverse use, effectiveness, advantages of each type and description of climate in the Czech Republic. Depending on the number of sunny days and no claudy days, I was looking for the best areas photovoltaic power. On the basis of cooperation with the firm and Energ-servis and using their test center, I compare different types of panels, their performance in relation with the cost and method of purchase. From these data, six diverse installation, I tried to determine the best type of panel that is best for the South Moravian region in the cost / return on investment.
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Lednický, Ján. "Návrh a realizace mobilní fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-318497.
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This diploma thesis entitled Design and realization of a mobile photovoltaic power plant is dividet into two parts. In the first, theoretical part one can learn about the state of representation of renewable energy sources in the field of electrical power engineering and about the structure of photovoltaic power station systems. The secont part of this thesis is focused on the own design and realization of the mobile photovoltaic power plant, on the selection of individual suitable components and ther dimensioning. In addition, a model of a mobile power plant has been created, on the basis of which the power plant was constructed. Finally, one can find a source code analysis of a power plant monitoring using a microcontroler
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Kosinová, Michaela. "Hodnocení investičního projektu - výstavba fotovoltaické elektrárny." Master's thesis, Vysoká škola ekonomická v Praze, 2008. http://www.nusl.cz/ntk/nusl-10604.
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The thesis deals with the following question: 1. What are the renewable resources? 2. Types of renewable resource. 3. European Union approach to renewable resources: targets 4. Czech Republic approach to renewable resources: targets 5. Investment evaluation: Photovoltaic power plant.
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Cholevová, Anna. "Hodnocení investičního projektu - výstavba fotovoltaické elektrárny." Master's thesis, Vysoká škola ekonomická v Praze, 2009. http://www.nusl.cz/ntk/nusl-76497.
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investment evaluation of solar electric power station, two main parts, first focus on evaluation before positive decision about making investment, second part reflects the present situation, use economic criterion: net present value, internal rate of return, pay-off period and additional indices
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Dvořák, Vít. "Návrh fotovoltaické elektrárny pro rodinný dům v okrese Jihlava." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442514.
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This diploma thesis deals with the design of a photovoltaic solar power station for a specific family house in the Jihlava region. The aim of the work was to get acquainted with technologies about the production of solar systems, evaluate the market in the Czech Republic and create a design of photovoltaic solar power station. Three designs of power stations were created with the help of the PV * SOL design system. Each design uses different photovoltaic cell technology. The result of each power station design is a complete finished project, which is based on many factors such as the efficiency of the entire system in a certain location, financial analysis, return on investment and more. In addition, these projects meet the conditions for the preparation of the subsidy program Nová zelená úsporám. At the end of the work, all three designed power stations are evaluated and with the help of multicriteria analysis, the best and most advantageous power station design for the given locality is determined. In the end, the idea of further development of the project is presented.
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Cerman, Marek. "Ekonomické aspekty využití energie z fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220175.
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The major topic of this master‘s thesis is to create a complex model of general photovoltaic power plant (PVP). First chapters are engaged in research of photovoltaic. Growth of globally installed power and analysis of situation in Czech Republic are described in this section. The spectrum of conditions is introduced, from current legislative framework up to local Sun radiation. The actual technologies and their advantages are depicted, especially rate of utilization of energy. Expected trends of future development of conversion efficiency are mentioned, with prediction of production costs of photovoltaic. In context with those aspects, the question of grid parity achievement arises. The own assembled model of photovoltaic power plant has been created in Microsoft Excel. The mathematical apparatus is described in a separate chapter, individually solving technical part, which main result – the amount of yearly generated electricity, is applied for economical calculation. Final results are the usual economic indicators, mainly: Net Present Value (NPV), Internal Rate of Return (IRR), Levelized Cost of Electricity (LCOE). There is series of aspects defined by user in the model which may impact the amount of produced electricity and economics of user’s project, such as use of loan, replacement of converters, operational costs etc. These aspects are frequently neglected by project sellers. In the end, intended photovoltaic power plants of 2.75 kWp and 28.98 kWp are simulated by the model in real conditions of 2013. Sensitivity of impact of both proposals to the aspects mentioned above has been analyzed. In the conclusion the achieved results are summarized and the key factors which determine the PVP’s economic efficiency are assessed.
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Mačát, Jakub. "Vlivy ovlivňující degradaci instalovaného výkonu fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220429.
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My diploma thesis focuses in its theoretical part on the analysis of photovoltaic cells, panels, their properties and defects . Further there are described materials from which the cells and panels are produced today but also there are mentioned materials which could affect the near future. There are also state the methods of measurement of photovoltaic cells . The practical part analyzes selected photovoltaic panels, determines the level of degradation by measurement and calculation with using the intensity of solar radiation. All results are entred into graphs and tables.
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Novotný, Tomáš. "Využití obnovitelných zdrojů realizací fotovoltaické elektrárny Drásov." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2009. http://www.nusl.cz/ntk/nusl-222290.
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This master’s thesis discuss the renewable energy source utilisation, to be more precise it describes the Photovoltaic Power Plants. These sources are not only capable of contributing to the regeneration of the environment and to the electricity production, but they are also capable of generating the investor’s economic profit. The individual chapters describe the external factors affecting the project, present condition of the project’s realization, the theory of photovoltaic cells and systems, CCTV camera systems, which are necessary for the power plant security.
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Kulhánek, Martin. "Návrh nosné konstrukce pro fotovoltaické sluneční články." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2008. http://www.nusl.cz/ntk/nusl-228301.
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The purpose of this dissertation is to discuss the engineering design of the supporting structure for solar photovoltaic panels with a total area of 200 metres square. The supporting structure is intended for implementation as part of a solar power station. The preamble of the dissertation examines photovoltaic power stations, their types, advantages and disadvantages. The focus of the second part is directed toward the project of constructing the supporting structure and it also deals with the tasks of attaching the photovoltaic panels and putting the panel’s supporting structure in place. This section will also propose methods of continuously monitoring both the panel and its support-structure once they have been constructed and brought into operation. The purpose of part three is to perform the calculations concerning the entire structure’s required load-bearing properties through the use of the Final Element Method in the program “ANSYS 11.0”. The conclusion of this dissertation is devoted to the evaluation and economic analysis of the construction.
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Slivka, Ján. "Fotovoltaické články pro napájení nízkoodběrových elektronických zařízení." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220094.
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The aim of master’s thesis was to develop a method for long-term measuring the influence of temperature on photovoltaic cells and lithium-polymer batteries and to design such measuring system. System was assembled on universal printed circuit board. It consisted of circuits for measuring temperature, illuminance and charging circuit, which charged battery with capacity 110 mAh. The PV cell BSK-SP9261 was used as source. Voltages was recorded by data acquisition device NI-USB 6009 and loged in program developed in LabVIEW 2012 enviroment. Afterwards, temperature, illuminance, voltage on PV cell and internal resistance of battery were computed.
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Mareček, Jan. "Návrh optimalizace spotřeby elektrické energie z fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221211.
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This master’s thesis is focused on opportunities of optimization of electric power consumption from photovoltaic power plant. In theoretical part are presented basic principles and possibilities of photovoltaic system connection. It continues with an overview of backup systems and types of batteries. Practical part is about prediction of production and consumption of electric power, possibilities of power management and optimization. Next chapter deals with battery life cycle and their suitability for photovoltaic system. The last part of this thesis is the quantification of the stored electric energy economic value.
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Vozár, Jan. "Návrh a zhodnocení výstavby a provozu fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2010. http://www.nusl.cz/ntk/nusl-222628.
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Tato diplomová práce se zabývá problematikou výstavby a provozování fotovoltaické elektrárny v podmínkách České republiky. Diplomová práce se skládá z části teoretické, analytické a návrhové. V části teoretické kde jsou rozebrána teoretická východiska, která jsou následně aplikována v dalších částech. Analytická část pojednává o podmínkách a překážkách výstavby a provozu fotovoltaických elektráren na území ČR. Část návrhová obsahuje vlastní návrh možných řešení fotovoltaické elektrárny a doporučení nejvhodnějšího řešení.
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Kollerová, Ivona. "Ekonomika obnovitelných zdrojů se zaměřením na fotovoltaické systémy." Master's thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-75453.
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The thesis deals with renewable resources, their history, development and support with special emphases on photovoltaics. The thesis turns to particular selected states, where the level and forms of support of renewables are analysed, again with emphases on photovoltaics. The thesis contains a chapter dealing with the support of photovoltaics in the Czech Republic, to which refers the applied part of the thesis -- the build-up of photovoltaic power plant in the Czech Republic in year 2008 in comparison with the one realised in 2010 from the cost-profit point of view.
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Hub, Michal. "Návrh fotovoltaické elektrárny s bateriovým úložištěm pro rodinný dům." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442441.
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This diploma thesis deals with the design of a photovoltaic power plant with a battery storage for a family house. In the theoretical part at first the principle of photovoltaic cells is analysed together with the various types used in this branch. Furthermore, the thesis deals with the description of photovoltaic systems and its individual parts consisting of inverters and accumulators. This thesis analyses the object for the installation of a photovoltaic power plant, including legislative and subsidy conditions. In the final part, itself system is analysed with a price proposal.
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Florián, Pavel. "Elektrické a dielektrické vlastnosti organických materiálů pro fotovoltaické aplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2014. http://www.nusl.cz/ntk/nusl-217037.
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Diploma thesis deals with the use of organic materials in photovoltaic applications and the study of their electric and dielectric properties. The theoretical part of thesis deals issue of the use of organic polymeric materials in photovoltaics and their advantages and disadvantages. Next are the results of various studies of organic solar cells by other authors. In the practical part of the work are shown experimental results (volt-ampere characteristics and impedance spectra) of samples of organic semiconductors and their evaluation.
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Hanák, Miroslav. "Návrh transformační stanice pro vyvedení výkonu z fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217818.
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This master’s thesis engages in project of outgoing transformer unit for the photovoltaic power station. It describes project and its design documentation what conducts to practising of construction. It has compared investing to more expansive transformer what has lower loss. It describes charges of operation’s transformer in twenty years. It leads project of cable low voltage. It compares whether is better to use aluminium or cupric cables. Project is led with respect for investment costs and minimum of operation loss.
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Benda, Dušan. "Soustava DC/DC měničů pro solární panely fotovoltaické elektrárny." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377104.
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This master thesis describes the design of a DC/DC converter for one photovoltaic panel with a 250 W peak power. The master thesis is divided into parts dealing with detailed design of power electronics, analog circuit design, description of control MPPT algorithms and software for control circuit. The chapter with the mathematical modeling of the converter created in the Matlab Simulink was added beyond the assignment.
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Skopal, Pavel. "Manažerský model investičního projektu fotovoltaické elektrárny pro mezinárodní praxi." Doctoral thesis, Vysoká škola ekonomická v Praze, 2010. http://www.nusl.cz/ntk/nusl-71656.
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The implementation of photovoltaic power plants is the result of the collaboration between developers, investors, financing institutions, municipalities and general contractors. Investors make informed decisions based on expert evaluations of financial and nonfinancial criteria of projects. The investor provides equity capital for the project and the bank provides a loan usually in the amount of 70-80% of the total investment cost. The investor looks for the optimal solution for his investment and for the preparation and implementation of the project. To achieve this the investor needs to have a very good understanding of the country specifics where the project is located. During the construction works, outside bodies are part of the undertaking, especially law firms, expert technical supervisors and risk managers. The completed project is then valued using industry-standard methods and it becomes part of the investor's portfolio. New knowledge acquired during the development process is managed and applied to other projects.
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Kořenek, Jan. "Využití fotovoltaické elektrárny s bateriovým úložištěm pro potřeby skladu a kancelářských prostor." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400573.
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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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Nevoral, Miroslav. "Fotovoltaický systém pro RAPS aplikace." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218890.
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The beginning of this work presents the basic principles of photovoltaic cells, their advantages and disadvantages. There is also an overview of photovoltaic systems. The next part takes a closer look on lead-acid accumulators followed by a practical part regarding the measurement of VA characteristics. The main goal of this work is to assemble an experimental PV system. It will consist of a PV module, an accumulator (consisting of two cells connected in series and producing an overall voltage of 5V) and of a variable load (assembled from nineteen resistors with resistance varying from tens to hundreds of Ohms). This system is connected to a computer that runs the control software which was created using the VEEPro 8.0 simulation environment. The measurements can be taken in two ways. Either the operator can select the load resistor combinations manually, or the operator only launches the measurement and the load is selected automatically by the software. This way we obtain an automatized workplace for measuring VA characteristics of photovoltaic panels.
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Kořínek, Vladimír. "Návrh ekologického vytápění rodinného domu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399500.
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This diploma thesis deals with the design of ecological heating for a family house. The main objective is to find the most advantageous variant of the heating and water heating system using a heat pump in cooperation with an alternative heating system. Thermal losses are calculated for the selected object, and several heating designs are made based on the calculations. Then the economic return of the designs is calculated.
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Železná, Jarmila. "Podnikatelské plány na výstavbu a provoz fotovoltaické elektrárny a na developerský projekt a jejich porovnání." Master's thesis, Vysoká škola ekonomická v Praze, 2007. http://www.nusl.cz/ntk/nusl-2602.
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Hromádka, Ondřej. "Odhad nákladů podpory výroby elektřiny z fotovoltaických elektráren - případ Itálie, Francie a Belgie." Master's thesis, Vysoká škola ekonomická v Praze, 2016. http://www.nusl.cz/ntk/nusl-262349.
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The purpose of the master theses is to estimate gross direct financial cost brought about by support schemes for electricity generation in photovoltaic power plants in France, Italy and Belgium. In order to understand support schemes, I deal with legislation of each particular country and with its development. Based on development of subsidies for photovoltaics and production of electricity of new instalations I determine the final amount of costs. Individual outputs are subsequently compared with data regarding the Czech Republic, Spain, Germany, UK, Greece and Slovakia.
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Zejval, Tomáš. "Vliv schválení srážkové daně na fotovoltaický projekty v ČR." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-73363.
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The master thesis is concerned with the problems of the impact of additional taxation on economy and effectiveness of photovoltaic projects in the Czech Republic. Additional taxation applies to revenues coming from selling the electricity made by photovoltaic power plants between 2011 and 2013. The first part describes the theoretical factors influencing the methods of assessing the effectiveness of the investment project. At the beginning of the second part, the legislative background of renewable energy projects in the Czech Republic is described. All the factors influencing the effectiveness of the photovoltaic projects are reviewed; followed by the discussion of methods for assessing the effectiveness of the photovoltaic projects. At the end of the thesis the impact of additional taxation on the effectiveness of photovoltaic projects is assessed and compared between different sizes of projects.
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Santos, Romeu José Correia dos. "Ferramenta computacional de modelação do desempenho de painéis fotovoltaicos." Master's thesis, Universidade da Beira Interior, 2011. http://hdl.handle.net/10400.6/3801.
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Esta dissertação sugere um modelo numérico preciso para posterior desenvolvimento de uma ferramenta computacional, baseado nas equações de Shockley que permite simular do desempenho de painéis fotovoltaicos. O modelo propõe o uso da equação dupla exponencial para simular as características eléctricas de qualquer painel fotovoltaico existente no mercado, respeitando a tecnologia monocristalina ou policristalina.
A ferramenta computacional desenvolvida em MATLAB permite ao utilizador analisar o comportamento das características eléctricas de acordo com as alterações ambientais, como a temperatura e a irradiância, através das curvas I-V e P-V e prever como os vários factores de degradação e acumulação de sujidade influenciam na potência gerada, por cada ano de vida útil.
A interface gráfica do utilizador (Graphical User Interface - GUI) desenvolvida em MATLAB integra a ferramenta computacional, que permitirá ao utilizador seleccionar a tecnologia usada no módulo, ao nível de materiais, e também a introdução dos valores técnicos que caracterizam cada módulo a testar nas condições STC, normalmente fornecido nos datasheets dos fabricantes de módulos fotovoltaicos.
A relevância do trabalho consiste na disponibilização de uma ferramenta de modelação de sistemas solares fotovoltaicos a clientes e a instaladores/reparadores. Aos primeiros esta servirá para comparar o desempenho de diferentes painéis que se pretendam instalar, aos segundos serve ao mesmo propósito, possibilitando adicionalmente analisar a partir de que momento será necessário proceder a operações de manutenção, sendo uma mais-valia no acompanhamento pós-venda.This work suggests a precise numerical model for further development of a computational tool based on Shockley equations that can simulate the performance of photovoltaic panels. The model proposes the use of double exponential equation to simulate the electrical characteristics of any photovoltaic panel on the market, respecting the monocrystalline or polycrystalline technology. The computational tool developed in MATLAB allows the user to analyze the behaviour of electrical characteristics in accordance with environmental changes such as temperature and irradiance, through the I-V and P-V curves and predict how various factors of degradation and accumulation of dust and dirt influence the power generated, for each year of life. The graphical user interface (GUI) developed in MATLAB includes the computational tool that will allow the user to select the technology used in the photovoltaic panel, in terms of materials, and also the introduction of STC technical values that characterize each panel, usually provided in the datasheets of the corresponding manufacturers. The relevance of the work consists in providing a tool to customers and installers/repairers. The former will used it for comparing the performance of different panels, and the latter will used for the same purpose, but additionally can analyze at what time it will be necessary to carry out maintenance operations, being an asset in post-sale monitoring.
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Kašpárek, Martin. "Regulátor pro nabíjení NiMH akumulátorů z fotovoltaického panelu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218892.
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The aim of this master's thesis is suggest and construct regulator for charge NiMH storage battery from photovoltaic (PV) panel. Function regulator is tracking maximum power point from PV panel (MPPT), control charge and evaluation full charge of battery.
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Omasta, Lukáš. "Příprava a charakterizace tenkých vrstev nízkomolekulárních materiálů pro organickou fotoniku." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2013. http://www.nusl.cz/ntk/nusl-216943.
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This diploma thesis is focused on characterization of properties of new organic materials with respect to its potential application in organic photonics. The theoretical part contains a themed literature research on low molecular thin films for organic photonics, mainly phthalocyanines together with description and structure of the photovoltaic energy conversion. The practical part includes the preparation of thin layers of selected organic materials for organic photonics. Prepared thin films were characterized by optical methods and current voltage characteristics. Based on these results, the thin films and structure of solar cells were optimalized. Acquired data were used to determine the materials and structures suitable for photonics applications.
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Krúpa, Lukáš. "Fotovoltaický systém pro dobíjení elektromobilu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242077.
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This master thesis deals with use grid-off photovoltaic system for recharging electric vehicle. First is explained the principle of converting solar energy into electric energy and theoretically describes the components of the system. Furthermore, is presented a real application of the photovoltaic power plants in the world for recharging electric vehicles but also for other uses. The next section theoretically describes the grid-off system how it shout look like in real and there are presented the possibilities of choice of components. The main part is the actual construction of the grid-off system for recharging electric vehicle and measurement. The conclusion of this thesis is made up for the expected economic recovery of the entire system.
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Papírek, Jan. "Možnosti likvidace a recyklace fotovoltaických panelů v ČR." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2020. http://www.nusl.cz/ntk/nusl-413548.
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This diploma thesis is focused on the assessment of the possibilities of disposal of photovoltaic panels installed in the Czech Republic. In addition to the basic theory of photovoltaic cells and panels, the theoretical parts describe legislation, subsidies in the field of photovoltaics and the development of photovoltaics in the Czech Republic. As part of recycling, their methods, work with the collective system, as well as the impact on the environment are analyzed. In the experimental part, using the data of the installed capacity and the average weights of the panels, various projections of the disposal of the panels over time are made, which take into account factors such as the life of the power plant or the capacity of the recycling line. Furthermore, according to the available literature, an analysis of the revenue from the sale of recycled materials contained in panels installed in our territory is performed. Subsequently, the needs of future implementers of proven estimates of labor and logical demands were assessed. Finally, an economic evaluation of the fundamental aspects of the FRELP recycling process was performed and the net prices of different recycling directions were determined.
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Nagyová, Veronika. "Příprava a studium optoelektrických vlastností tenkých vrstev pro organickou fotoniku." Master's thesis, Vysoké učení technické v Brně. Fakulta chemická, 2013. http://www.nusl.cz/ntk/nusl-216944.
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This diploma thesis concentrates on the properties characterization of new organic materials for solar cells. In the theoretical part, there is a solar cells themed literature search, there is described a mechanism of conversion of solar energy, factors influencing photovoltaic conversion efficiency and materials using for preparation of organic solar cells. The practical part includes the preparation of solar cells and characterization of optical and electrical properties of the studied materials in thin layers and solutions. Used materials were conjugated polymers and derivatives of fullerenes.
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Horváth, Radovan. "Návrh skladby zdrojů pro síťovou nezávislost." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254307.
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The aim of this diploma thesis is the development of research on the topic of the draft mix for network independence. Next is the outline the various design solutions of the battery systems for accumulation electric energy and balance model energy supply system for the selected object. The practical part of diploma thesis deals with necessary resources and the size of batteries for autonomous operation during the summer months and also implements technical and economic studies aimed at finding cost-effective solutions. The work is divided into 6 chapters that contain 16 tables and 18 figures. Diploma thesis brings an option to configure a photovoltaic system and also describes the features, functions and the choice between the most used technologies. Evaluation of results of theoretical methods are described in the final part.
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Pina, Jair António Marques de. "Optimização de células fotovoltaicas." Master's thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/10130.
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Dissertação para obtenção do Grau de Mestre em
Engenharia Microelectrónica e NanotecnologiasPerante os cenários do aumento da população mundial, da concentração de CO2, dos custos dos combustíveis, do consumo energético mundial e das alterações climáticas, surgiu a necessidade de encontrar fontes de energias alternativas. Neste contexto, a Energia Solar Fotovoltaica, fruto de investigações e investimentos realizados, teve um grande impacto na última década, registando um aumento significativo quer da produção de painéis fotovoltaicos ou de instalações de sistemas fotovoltaicos no Mundo. A Energia solar Fotovoltaica surge como uma energia alternativa limpa, inesgotável e que contribui para a diminuição do impacto ambiental, mas o elevado custo inicial é ainda um entrave à sua comercialização, sendo por isso importante conseguir uma optimização na produção dos painéis fotovoltaico bem como em instalações a fim de optimizar o seu rendimento. Um dos objectivos deste trabalho foi instalar e monitorizar um sistema fotovoltaico no telhado do laboratório de máquinas eléctricas do ISEL. Foi instalado um sistema com uma potência de 990 Watts. A monitorização dos módulos durante alguns períodos de 2011 e 2012 demonstraram um bom desempenho do sistema fotovoltaico instalado comparativamente aos valores estimados. Outro objectivo deste trabalho foi estudar a influência da temperatura no rendimento das células fotovoltaicas. A primeira fase deste estudo foi desenvolver um modelo matemático de uma célula fotovoltaica em Simulink/Matlab. As curvas obtidas da simulação numérica do modelo matemático permitiram observar e demonstrar a influência do aumento da temperatura das células fotovoltaicas na sua potência e rendimento. A segunda fase deste estudo tinha como objectivo comprovar experimentalmente o efeito da temperatura e analisar possíveis meios que permitissem refrigerar as células fotovoltaicas. Através de uma montagem experimental específica as células fotovoltaicas foram testadas num ambiente controlado. Os valores obtidos permitiram observar uma diminuição de cerca de 36% da temperatura das células utilizando refrigeração e consequente aumento do rendimento.
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Febras, Filipe Sehn. "Módulos fotovoltaicos com células solares bifaciais: fabricação, caracterização e aplicação em sistema fotovoltaico isolado." Pontifícia Universidade Católica do Rio Grande do Sul, 2012. http://hdl.handle.net/10923/3319.
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Previous issue date: 2012The main objective of this work was to fabricate and to characterize static concentrator photovoltaic modules (MEC-P) with bifacial solar cells and diffuse reflector. PV concentrator modules and PV standard modules with the same solar cell area were installed in a stand-alone PV system at 1. 5 years and these were electrically characterized after the solar radiation exposure. The PV systems were monitored, measuring the irradiance (total and ultraviolet) at the same plane of PV modules, the voltage of battery, the electric current to the load and the electrical voltage and current of PV modules. Two PV concentrators were manufactured with dimensions of 775 mm x 690 mm x 70 mm (length x width x thickness) and with 36 bifacial solar cells with 80 mm x 80 mm, soldered in series. With cells whose average efficiency was (13. 8 ± 0. 2) % and (13. 2 ± 0. 2) % for front and rear mode illumination, respectively, one module with efficiency of 7. 8 % was fabricated. By using solar cells of (13. 7 ± 0. 2) % / (13. 1 ± 0. 3) % for front / rear illumination mode, the efficiency achieved by the PV module was 7. 6 %.It was estimated that the temperature of the solar cells in PV module concentrators was about 5 °C to 9 °C higher than that of PV standard modules with the same type of glass and similar lamination materials. The PV concentrators were subjected to total radiation of around 1. 9 MWh/m² (6. 84 x 109 J/m²) for 1. 5 years and presented no degradation of their visual appearance as well as its electrical characteristics. The PV stand-alone system installed with MEC-P modules showed a monthly average efficiency of (6. 5 ± 1. 0) % in the period in which the load was held constant. The efficiency was 1. 0 % lower than that obtained with the modules MEC-P was due to the higher operating temperature, the higher reflectance of solar radiation when the PV modules are installed on the tilted plane and has variation of the angle of incidence during the day, the resistive losses in the system and because in the calculation of system efficiency it was considered the electrical energy produced and stored.
O objetivo principal deste trabalho foi fabricar e caracterizar módulos fotovoltaicos concentradores estáticos (MEC-P) com células solares bifaciais e refletor difuso. Módulos fotovoltaicos concentradores e módulos convencionais com a mesma área de células foram instalados em sistemas fotovoltaicos isolados por aproximadamente 1,5 anos e os mesmos foram caracterizados eletricamente após o período de exposição à radiação solar. Os sistemas fotovoltaicos foram monitorados, medindose a irradiância (total e ultravioleta) no plano dos módulos, a tensão do banco de baterias, a corrente elétrica na carga, a tensão e a corrente elétricas dos módulos fotovoltaicos. Dois módulos fotovoltaicos concentradores foram construídos com as dimensões de 775 mm x 690 mm x 70 mm (comprimento x largura x espessura) e com 36 células solares bifaciais de 80 mm x 80 mm, soldadas em série. Com células cuja eficiência média foi (13,8 ± 0,2) % e (13,2 ± 0,2) % para iluminação pela face frontal e posterior, respectivamente, fabricou-se um módulo com eficiência igual a 7,8 %. Com células de (13,7 ± 0,2) % / (13,1 ± 0,3) % para iluminação frontal/posterior, a eficiência alcançada pelo módulo foi de 7,6 %.Estimou-se que a temperatura das células solares nos módulos concentradores foi da ordem de 5 ºC a 9 ºC maior que a de células solares em módulos convencionais com o mesmo tipo de vidro e materiais de encapsulamento similares. Os módulos concentradores foram submetidos à radiação total de aproximadamente 1,9 MWh/m2 (6,84 x 109 J/m²) durante 1,5 anos e não apresentaram nenhuma degradação de seu aspecto visual bem como de suas características elétricas. O sistema fotovoltaico isolado instalado com módulos MEC-P apresentou uma eficiência média mensal de (6,5 ± 1,0) % no período em que a carga foi mantida constante. A eficiência de 1 % abaixo da obtida com os módulos MEC-P foi devida à maior temperatura de operação, a maior refletância da radiação solar quando os módulos são instalados no plano inclinado e há variação do ângulo de incidência durante o dia, às perdas resistivas no sistema e porque no cálculo da eficiência do sistema foi considerada a energia elétrica produzida e armazenada.
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Bühler, Alexandre José. "Determinação de parâmetros fotovoltaicos a partir de ensaios de curvas características sem iluminação." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10621.
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Com o crescente aumento na demanda de sistemas fotovoltaicos no mundo, torna-se cada vez mais importante uma correta e eficaz caracterização de módulos fotovoltaicos. A caracterização elétrica de tais dispositivos fotovoltaicos passa pela determinação da curva I-V na condição padrão e por outros parâmetros, que permitem qualificar o módulo e avaliar seu desempenho em diferentes condições de operação. Entre estes parâmetros estão a resistência série (RS), resistência paralela (RP), corrente de saturação reversa (I0) e o fator de idealidade do diodo (m). Convencionalmente a determinação destes parâmetros exige vários ensaios sob iluminação natural o que torna os procedimentos extremamente dependentes das condições climáticas. Por outro lado, para a correção das curvas I-V medidas em diferentes condições para a condição padrão de ensaio é necessária a determinação de coeficientes que descrevem a variação da corrente de curto-circuito e da tensão de circuito aberto com a temperatura, respectivamente () e ( ). Para obter estes coeficientes são necessários muitos ensaios com o módulo fotovoltaico sob a luz solar, sendo que vários parâmetros atuam simultaneamente, o que dificulta o isolamento da influência de cada um. Trabalhando com as equações que regem o comportamento de um gerador fotovoltaico, é possível verificar que esses parâmetros, com exceção de podem ser determinados a partir de ensaios sem iluminação. Este trabalho apresenta os resultados da pesquisa realizada no Laboratório de Energia Solar da UFRGS para a determinação de I0, m e RS para módulos fotovoltaicos de silício cristalino, além do coeficiente de variação da tensão de circuito aberto com a temperatura ( ), obtidos através de curvas características no escuro. Os resultados obtidos para a determinação de foram comparados com ensaios sob iluminação natural, apresentando boa concordância com os mesmos. Os parâmetros encontrados a partir da análise de curvas I-V sem iluminação foram usados para a elaboração de curvas teóricas segundo o modelo exponencial de um diodo. Posteriormente essas curvas teóricas foram então superpostas a outras determinadas sob iluminação natural e a concordância pode ser considerada muito boa. Foi também realizada uma comparação do método aqui utilizado para a determinação da resistência série com a metodologia proposta pela norma ABNT e com o “método da pendente” de maneira que foi possível verificar a eficácia e confiabilidade do método proposto.The number of photovoltaic solar energy installations is increasing for different applications in the world. Thus, it is very important to completely and accurately characterize the photovoltaic (PV) modules. In order to determine the electrical performance of a photovoltaic module, it is indispensable to determine the current-voltage characteristic curve (I-V), as well as to find the parameters required to transpose this curve to any climatic condition. Usually the determination of these parameters, such as series resistance (RS), shunt resistance (RP), reverse saturation current (I0) and diode ideality factor (m), require several tests under natural sunlight which makes this determination very dependent of the meteorological conditions. Moreover to transpose the I-V curve from different temperatures conditions it is necessary the determination of the temperature coefficients of current () and voltage ( ). To determinate these coefficients, many tests are also necessary with the photovoltaic module under the solar radiation, where several coefficients and parameters act simultaneously which makes difficult the isolation of the influence of each one. Analyzing the equations that govern the electrical behavior of a PV module, it is possible to verify that some of these parameters and coefficients can be obtained from I-V curves measured under dark conditions. This work presents the results from the research developed in the Laboratório de Energia Solar of the Universidade Federal do Rio Grande do Sul (UFRGS) for the determination of I0, m and RS for crystalline silicon modules and the determination of coefficient from characteristic curves measured in dark conditions. The values for obtained through dark measurements were compared with tests under solar radiation. The parameters determined from the study of dark I-V curves were used to plot theoretical I-V curves according to the one-diode model. Furthermore the I-V curves measured under solar radiation were compared to theoretical curves elaborated with the determined parameters resulting very good agreement. In this work the methods, proposed and the ABNT method, to determination of the series resistance, were compared in order to improve the proposed method of this work.
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Oliveira, Maurício Madeira. "Análise do desempenho de um gerador fotovoltaico com seguidor solar azimutal." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2008. http://hdl.handle.net/10183/14737.
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A conversão de radiação solar em energia elétrica por sistemas fotovoltaicos tem se intensificado nos últimos anos. Em sistemas autônomos ou conectados à rede elétrica, a estrutura de instalação dos módulos fotovoltaicos é geralmente fixa e com inclinação igual à latitude local. Uma importante parcela de instalações está utilizando seguidores solares de um ou dois eixos e apresentam um aumento significativo na produtividade do sistema. Este trabalho descreve a montagem de um seguidor solar azimutal (eixo vertical móvel) aplicado a módulos fotovoltaicos e compara a produção energética do mesmo com um sistema fixo. Os parâmetros monitorados para comparação foram: corrente fotogerada pelo sistema fixo e móvel, irradiância sobre o conjunto fixo e móvel, radiação global e temperatura dos módulos. Ambos os sistemas foram montados com inclinação igual à latitude local (30°). O ganho energético com a utilização do seguidor azimutal chegou a 24% em dias de céu parcialmente limpo, quando ocorre alto índice de radiação direta. O seguidor solar foi desenvolvido no Laboratório de Energia Solar da UFRGS, incluindo parte mecânica e controle eletrônico (hardware e software) do equipamento. O seguimento solar é realizado a cada 15 minutos (3,75°), um sensor óptico com haste de sombreamento determina se o conjunto está voltado para o Sol. A posição de retorno (leste) no final do dia, ½ dia (norte) e final de curso (oeste) é determinada por sensores magnéticos. O aumento de produtividade alcançado pelo conjunto com seguimento solar em períodos fora do central (das 11h às 13h) chegou a 38% em relação ao fixo. Foi utilizado um conjunto de equações para gerar curvas teóricas de irradiância sobre um plano inclinado fixo ou móvel a partir da radiação global horizontal medida. Os resultados foram comparados com curvas de irradiância geradas a partir de medidas feitas por células de referência mostrando concordância.The conversion of solar radiation into electricity by photovoltaic systems has been intensified in the last years. In stand-alone or grid-connected systems, the structure of installation of photovoltaic modules is generally fixed and with an inclination equal to the local latitude. A significant number of installations are employing solar tracking along one or two axes with significant increase in the productivity of the system. This work describes the development of an azimuthal solar tracker (vertical axis mobile) applied to photovoltaic modules and compares its production of energy with a fixed system. The monitored parameters in both systems were electric current, horizontal and tilted irradiances, as well the temperature of the PV modules. Both systems were installed with an inclination equal to local latitude (30°). The energy gain with the use of azimuthal tracker reached 24% in days of partially clear sky, when there is a high rate of direct radiation. The solar tracker was developed at the Laboratório de Energia Solar at UFRGS, including the mechanical and electronic control (hardware and software) equipment. The tracking is performed at every 15 minutes, corresponding to 3.75°. An optical sensor determines whether the set is falling to the Sun. The return position (east) at the end of the day, noon (north) and end of course (west) is determined by magnetic sensors. The productivity increase reached by the sun tracker along tracking periods outside the central hours (11h to 13h) reached 38% in relation to the fixed system. A set of equations were used to generate irradiance curves on a theoretical plane, fixed or mobile, from the measured global horizontal radiation. The theoretical results agree with curves of irradiance obtained from measurements made with reference cells.
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Bühler, Alexandre José. "Estudo de técnicas de determinação experimental e pós-processamento de curvas características de módulos fotovoltaicos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/30213.
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O uso da energia solar fotovoltaica tem aumentado muito nos últimos anos. principalmente em países onde políticas governamentais de incentivo desempenharam um papel fundamental neste processo. No Brasil. embora a realidade ainda esteia longe de países como a Esnanha ou a Alemanha. pode-se afirmar aue o uso desta tecnologia apresenta um grande potencial de aumento para os próximos anos. Desta forma uma metodologia confiável e de fácil aplicacão Para a caracterizacão de módulos fotovoltaicos é um tema de grande importância. Para a análise do desempenho elétrico de um módulo fotovoltaico é imprescindível a determinacão da curva (I - V) de corrente e tensão denominada curva característica. Através desta curva é possível obter imnortantes informacões sobre as características elétricas do gerador fotovoltaico como a corrente de curto circuito f/scl. a tensão de circuito aberto (Vo cl e o ponto de máxima potência (PM). A determinacão desta curva. de acordo com as normas técnicas deve ser realizada dentro de condicões específicas de temperatura. irradiância incidente e espectro de radiacão solar. Fora desta condicão padrão. aue muitas vezes é dificil de ser obtida. a curva precisa ser corrigida ou transladada sendo então necessário a aplicacão de algum método de translacão. Outro fator importante na caracterizacão de um módulo é a renresentacão matemática de sua curva característica. Esta renresentacão é feita de acordo com modelos aue possuem parâmetros a serem determinados experimentalmente experimentalmente. Entretanto. modelos aue podem ser úteis para módulos de silício cristalino. por exemplo. podem não servir para módulos de filmes finos. Este trabalho apresenta uma Proposta de metodologia para a caracterizacão elétrica de módulos fotovoltaicos de diferentes tecnologias. É apresentado um estudo completo. desde a técnica de aauisicão da curva I-V até o pós-Processamento da mesma. Para a determinacão das curvas características foi desenvolvido um eauinamento de grande velocidade e precisão para aauisicão de dados. além da construcão de um gabinete refrigerado cuia base é apoiada em um sistema aue permite a variacão do ângulo azimutal. Foi realizado um estudo da utilizacão deste gabinete para ensaios com módulos fotovoltaicos e um estudo do comportamento térmico do mesmo. Na presente Tese foi também realizado um estudo para a determinacão dos parâmetros matemáticos aue descrevem a curva I-V de acordo com três métodos diferentes. relativos aos modelos de um e dois diodos. dos auais um foi proposto nesta Tese. O método proposto foi o aue apresentou os melhores resultados. embora tenha apresentado uma complexidade na anlicacão maior do aue os outros dois métodos. Um estudo da translacão da curva para diferentes condicões de temperatura e irradiância utilizando auatro diferentes métodos também foi realizado. Dentre esses métodos foram analisados os procedimentos sugeridos nelas brasileira e americana. Após o estudo de curvas de diversas tecnologias de módulos fotovoltaicos. ficou constatado aue em média o método da norma brasileira apresenta os melhores resultados. A metodologia para caracterizacão elétrica aaui proposta foi testada em módulos de diferentes configuracões e tecnologias. incluindo módulos de filmes finos e híbridos.The use of nhotovoltaic solar enerav has increased considerablv in the last vears. mostiv in countries in which eovemmental support nlaved an effective role. Althouah the realitv in Brazil is still verv far from countries such as Snain or Germano. it is nossible to forecast that the use of PV technoloey will arow in the next vears. Thus. the develonment of methodoloav. both reliable and of easv arolication. for PV module characterization renresents a verv imnortant issue. In order to determine the electrical performance of a nhotovoltaic module. it is indisnensable to determine the current-voltaae curve (I-V). known as characteristic curve. From the I-V curve it is nossible to obtain imnortant information about the electrical characteristics of a PV generator such as the short-circuit current (ISC) the onen circuit voltaee Wocl and the maximum power noint (PM). The determination of an I-V curve. accordine to the standards shall be nerformed in snecific conditions of module temperature incident irradiance and solar soectral radiance distribution. In the case of a curve measured in a non standard condition. which is often difficult to obtain. it is necessarv to annly a correction or translation method. Other imnortant factor related to characterization of a PV module is the mathematical representation of its I- V curve. This renresentation is nossible bv means of mathematical models with narameters that must be experimentally determined. However. some models which are suitable for crvstalline silicon. for example. mav be not to be for thin films technoloaies. This work oresents a proposal of methodoloav for the electrical characterization of nhotovoltaic modules. It is nresented a complete studv. from the I-V curve measurement techniaue to the post-processine of data. For the determination of these curves a verv fast and accurate sustem was built. A chamber with internai temnerature control was also built. This chamber stands on a rotatorv base which makes nossible to varv the azimuthal anele alone the dav. It was nerformed a studv on the use of this chamber in nhotovoltaic module tests and a studv of the chamber's thermal behavior. In this Thesis it was also nerformed a comoarative analvsis of three different methods accordina the sinale and double diode models for mathematical descrintion of I-V curves. One method based on the double diode model was develoned. and this one had the best results amona the three methods. The translation of the characteristic curve to different temnerature and irradiance conditions. bv means of four methods. was also studied. Among these methods were analvzed those nronosed bv the Brazilian and American standards. After the studv of several curves of different PV modules technologies it was concluded that. in average. the Brazilian standard has the best results. The nronosed methodologv for electrical characterization was annlied in different configurations and technologies modules. including thin films and hvbrids.
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Koval, Filip. "Efektivnost provozu fotovoltaických generátorů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217629.
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Objective of master’s thesis theoretical part is especially to illustrate influence of operation conditions, such as solar radiation, temperature or pollution of photovoltaic generator active area, on load and power characteristics of photovoltaic generator, or more precisely on photovoltaic conversion efficiency. Possible variants of increasing effectivity of using photovoltaic generator are explored, such as solar radiation concentration, photovoltaic generator active area cooling or aplication of optimalization circuit. Pivotal part of master‘s thesis is focused on experimental device practical realisation, concretely type MSQ36-10 photovoltaic generator with oriented concentrators of solar radiation. Practical realisation includes design of master‘s thesis experimental part construction with subsequent design of photovoltaic generator motion cycle necessary for adequate simulation of configuration variants solved using single testing photovoltaic generator. Description of own experimental device construction with list of measuring places used in task takes up. It is used automatic monitoring system working as independent measurement task for required values measuring and consecutive data collecting. It is done in two phases. First phase is measurement of all required values, in second phase measurement with attached optimalization circuit is made. Optimalization circuit sets best working point of photovoltaic generator according to actual working conditions. Master‘s thesis intention is experimental verification of solar radiation concentrators application convenience, orientation of photovoltaic generator or its mutual combination, namely using type MSQ36-10 photovoltaic generator. Objective is evaluation of reached energetic gain for all experimental device layouts in variable operating conditions.
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Lulo, Niño Jesús Manuel. "Implementación del sistema de energía solar fotovoltaico y facturación por consumo de energía en la Municipalidad Distrital de Morococha, Yauli - Junín." Bachelor's thesis, Universidad Continental, 2017. http://repositorio.continental.edu.pe/handle/continental/3841.
Full textAbstract:
La investigación tuvo como objetivo general: determinar en qué nivel la implementación de un sistema de energía solar fotovoltaico en la Municipalidad Distrital de Morococha, Yauli, Junín reduce la facturación por consumo de energía eléctrica; y como específicos: determinar en qué medida la radiación solar incide
en los paneles fotovoltaicos, identificar el nivel de potencia eléctrica generada por los paneles fotovoltaicos y determinar el nivel de reducción de la facturación por consumo de energía eléctrica de la Municipalidad Distrital de Morococha, Yauli, Junín – 2017, a través de la implementación del sistema solar fotovoltaico.Tesis
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MELO, FILHO José Bione de. "Análise do sistema de irrigação na Região Semi-Árida do Nordeste, utilizando o bombeamento de água acionado por geradores fotovoltaicos com concentrado tipo V." Universidade Federal de Pernambuco, 2006. https://repositorio.ufpe.br/handle/123456789/9701.
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Previous issue date: 2006Este trabalho analisa as possibilidades de implantação de culturas irrigadas no âmbito da agricultura familiar na região semi-árida do Nordeste do Brasil, em locais não supridos pelo serviço de energia elétrica. Analisa-se em particular o problema da água e da energia, mostrando que existem diversas alternativas para resolver o problema da água, basicamente através da exploração de reservas subterrâneas devidamente selecionadas. Experiências realizadas em pólos de desenvolvimento regional durante as últimas décadas mostram que o clima é perfeitamente propício para vários tipos de cultivo de alto valor agregado, uva entre eles. O balanço de água de um sistema de micro irrigação permite comprovar que é possível utilizar a tecnologia de bombeamento fotovoltaico com concentrador tipo V para operar esses sistemas de forma tecnicamente viável, nos casos de empreendimentos de agricultura familiar. Ensaios realizados com sistemas fixos, com rastreamento e com concentradores tipo V mostram que para um mesmo arranjo fotovoltaico a superfície irrigada pelos três sistemas é igual a 1,2 ha, 1,6 ha e 2,11 ha, respectivamente. Uma análise econômica através do processo produtivo (Valor Atualizado) mostra que os sistemas de irrigação para cultura de uva começam a dar retorno positivo a partir do terceiro ano. O estudo comprova, portanto, sua viabilidade, tanto do ponto de vista técnico como financeiro. A implantação desses sistemas poderá se traduzir em um aumento significativo no ingresso dos agricultores da região semi-árida