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| Hioki,André Tsuyoshi; Silva,Vilson Roiz Gonçalves Rebelo da; Vilela Junior,João Américo; Loures,Eduardo de Freitas Rocha. |
| Abstract The acceptance and deployment of electric power from sustainable sources, which are less polluting than fossils, have been a consensus throughout society. Specially, the growth of the installed capacity in photovoltaic energy has been considerable in distributed generation. In order to properly take advantage of this growing demand, it is necessary to adopt appropriate measures and procedures to improve the operation and performance of photovoltaic systems. The purpose of this work is to present such measures and procedures, under quantitative and qualitative analysis, using scientific methodologies and tools. In the end, a set of procedures was obtained that analyzes functional and structural aspects of small grid-connected photovoltaic systems.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distributed generation; Performance; Small photovoltaic system. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200217 |
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| Tiem,Wesley Thiago Egea; Unsihuay-Vila,Clodomiro. |
| Abstract The electrical sector is under constant evolution. One of the areas refers to the consumers that come to be generators, implementing distributed generation, interconnected to a smart grid. This article discusses the improvement of an algorithm, already presented in the literature, to make the best temporal allocation of loads, electric vehicle, storage and many sources of generation, aiming at the maximum financial performance, that is, the lowest value for the energy invoice The modeling consists of a Mixed Integer Linear Programming (MILP) algorithm, which considers each component of the system and weighs the maintenance and shelf life of storage devices, basically batteries, loads that can be reallocated and the concept of Vehicle-to-grid,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microgrid; Microgeneration; Distributed generation; Wind energy; Solar energy; Load reallocation; Storage; Electric vehicle; Smart grid. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132018000200215 |
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| Weigert,Gabriela Rosalee; Gurski,Erico; Benedito,Raphael Augusto de Souza. |
| Abstract With the insertion of distributed generation in distribution networks, security analysis becomes crucial, in islanded operation or when the system is connected to the grid. Dynamic stability analyses are necessary in order to achieve minimum levels of security and reliability. Such analyses are obtained through the solution of the algebraic-differential set of equations that model the distribution grid and their generators, which requires numerical solution methods. Therefore, this paper presents a computational tool for transient stability and large disturbance frequency stability analysis, considering distribution systems with the insertion of biomass-fed distributed generation, which may, or may not, have speed regulation systems. The presented... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distributed generation; Biomass; Dynamic stability; Speed regulator; Islanded operation. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200209 |
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| Lara Filho,Mauro Obladen de; Unsihuay-Vila,Clodomiro; Silva,Vilson Roiz Gonçalves Rebelo da. |
| Abstract The demand for electricity is growing worldwide. At the same time, the non-renewable natural resources that account for a large proportion of the global energy matrix are rapidly depleting, which will pose a major challenge in the near future. Therefore, micro-grid models that use renewable energy sources, such as solar and wind, are rapidly developing and are becoming economically viable alternatives. The objective of this study was to evaluate the economic viability of installing solar and wind power generation systems in the NOVVALIGHT electrical components factory located in Campo Largo, Paraná, Brazil. The most viable model was the combination of solar and wind energy, which would generate approximately 260 MWh of energy per year. Using... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distributed generation; Solar energy; Wind energy. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200204 |
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| Bareta,Maria Luiza E.; Sandim,Álvaro A.; Batista,Alexandre G.; Betini,Roberto C.; Pepplow,Luiz A.. |
| Abstract In a world where technology is even more essential, quality and reliability of electrical system are fundamental. In Brazil, country where most of the energy is produced thought power plants, the existing distribution network is overwhelmed and the needs for the consolidation of distributed generation is growing. Wind and Solar power generation from biomass and another renewable sources are one alternative to power plants, which requires large areas and massive investment. The renewable energy sources mentioned may be assembled in a way to generate reliable energy to properties far from the cities, such as rural zones, where often energy from power plants doesn’t gets to. Distributed generation allows quick development of Brazilian farming and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microgrid; Renewable energy; Rural zones; Distributed generation; Energy potential. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200218 |
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| Lara Filho,Mauro Obladen de; Unsihuay-Vila,Clodomiro; Silva,Vilson Roiz Gonçalves Rebelo da. |
| Abstract Electricity is undoubtedly one of the most important resources in the modern world. As the demand for electric energy increases, conventional resources that are transformed into electric energy are being exhausted, generating a need to search for alternative sources, resulting in a significant increase in energy costs. This study presents an integrated project of an intelligent microgrid and energy management aimed at reducing energy costs. At the Federal University of Paraná (UFPR), electricity represents an annual cost of over BRL 13 million, which is the third largest operating expense of the university. In addition, the public education budget in Brazil has been decreased in recent years. Therefore, this study was conducted within the scope of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Electricity consumption; Distributed generation; Free energy market; Energy management; Economic viability. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000200205 |
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