Modelagem de usinas eólicas para estudos de confiabilidade

Leite, Andréa P.; Falcāo, D.M.; Borges, Carmen L. T.

doi:10.1590/s0103-17592006000200006

Cited by 13 publications

(16 citation statements)

References 7 publications

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“…In order to properly design a wind farm feasibility project and estimate the annual energy production to be generated, Leite et al (2006) presents a computational model of probabilistic representation of this production, where the model also provides the calculation of performance indicators with a random combination of wind speed characteristics and other data that may represent the behavior of the wind energy plant by a Markov process. Leite et al (2006) performed a test with real data of the main wind farms in regions of Brazil and the results reflected positively on the already installed parks. In Table 5 below, the data of the 20 MW Wind Energy Plant is shown.…”

Section: Wind Farm Costmentioning

confidence: 99%

Wind power renewable energy generation to reduce Cost and the greenhouse effect

Pozo

Soares

Akabane³

2020

ABR

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The objective of this research is to analyze and provide economic bases for the use of wind energy, replacing the thermals plants in process of cost reduction, their positive impact on the economy and the environment. The energy obtained through the force of the winds is one of the oldest of the energies known and used by man. This conception of energy production was again evaluated and tested more objectively after the 1980s, especially in the USA and Europe with strong support from ERDA-Energy Research and Development Administration in the development of special turbines to capture energy from the winds and make it economically viable and sustainable. Experiments show that the use of wind energy as an economically and ecologically correct alternative for use in small and large power plants and reduce climate change.) Keywords: renewable energy, sustainable, CO² emission reduction, climate change Energy produced by the action of the wind started to have a greater development at the end of the 70s but specially during the 80s by some big companies from the USA and Europe that were creating projects of use of wind power with business objectives and economic purposes. The main companies were Boeing, General Electric, Enercon WindPower, Grumman, Kaman, Zephyr Wind Dynamo and others.Since the first oil crisis in the 1970s and in the following decades, the world has suffered and experienced many energy crises, especially non-renewable ones, causing great concern over its costs and its promotion of climate change regarding the indiscriminate use of oil. Developments for renewable, economic and ecological energy sources that do not attack and do not damage the ecosystem have been made. However, wind power faces problems with the inconstancy of the quantity and speed of the existing winds. The generators systems in the production of energy align to the problem involved with the need to use a process of storage for the generated energy for better and efficient use of this system. The studies of Mason, Page;Williamson, (2010) show that the growth of electric power generation with renewable sources is the key to the necessary decrease of emissions of greenhouse gases in the atmosphere. According to the British Petroleum Energy Outlook report (2016), renewable energy sources are expected to grow rapidly, quadrupling their world share by 2035.Energy consumption per capita in Brazil is still incipient and, therefore, energy efficiency measures do not have as much government support. According to Dutra & Guedes (2013), it is still possible to progress in a sustainable way without reducing energy consumption, taking

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Section: Wind Farm Costmentioning

confidence: 99%

Wind power renewable energy generation to reduce Cost and the greenhouse effect

Pozo

Soares

Akabane³

2020

ABR

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“…De acordo com Leite et al (2006), uma turbina eólica é construída por uma série de componentes, que são responsáveis pela produção de energia elétrica, sendo divididos em três etapas: captação da energia cinética contida no vento, conversão da energia cinética em energia mecânica e transformação da energia mecânica em energia elétrica pelo gerador elétrico. Assim, para que isso ocorra, existem dois tipos básicos de rotores aerogeradores eólicos -de eixo vertical e de eixo horizontal -, que diferem conforme rendimento aerodinâmico, eficiência, esforços mecânicos, velocidade do vento, sendo esta a que apresenta maior eficiência produtiva, entre outros.…”

Section: Método De Funcionamentounclassified

A Matriz Energética Baiana E O Potencial De Aproveitamento Solar E Eólico Na Geração De Energia Elétrica No Estado Da Bahia

Oliveira¹,

Souza²,

Neto³

et al. 2018

Revista GESTA

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ResumoO presente estudo possui como objetivo norteador a avaliação do potencial de aproveitamento solar e eólico para a geração de energia elétrica no estado da Bahia, apresentando vantagens, desvantagens e um levantamento da estimativa de quanto poderia se acrescentar na composição da matriz energética estadual. Com o decorrer da pesquisa, foi observado um enorme potencial de aproveitamento solar e eólico para geração de eletricidade no Estado, no qual, atualmente, concentram-se investimentos significativos do setor, em que a região centro-oeste foi a que se apresentou como a mais promissora. Em contrapartida, ainda existem barreiras ao desevolvimento e disseminação de tais tecnologias, como problemas relacionados à falta de linhas de transmissão. Como base metodológica, foi realizada pesquisa e coleta de dados preferenciais em agências, associações e empresas atuantes no setor de energia, a exemplo de Agência Nacional de Energia Elétrica e Associações Brasileiras de Energia Eólica e de Energia Solar, visando-se sempre uma maior confiabilidade nas informações. Palavras-chave:Usina solar fotovoltaica, usina eólica, matriz energética. AbstractThe present study has as a guiding objective the evaluation of the potential of solar and wind exploitation for the generation of electric energy in the state of Bahia, presenting their pros, cons and a survey of the estimation of how much they could add in the composition of the state energy matrix. Throughout the research, there was an enormous potential for solar and wind power generation for the generation of electricity in the state of Bahia, in which, currently, significant investments are concentrated in the sector, where the central-western region of the state was the most promising. On the other hand, there are still barriers to the development and dissemination of such technologies, such as problems related to the lack of transmission lines. As a methodological basis, research and collection of preferential data was carried out in agencies, associations and companies operating in the energy sector, such as the National Electric Energy Agency, Brazilian Wind Energy Associations and Solar Energy, always aiming for greater reliability Information.

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“…Desta forma, será considerando apenas o devido às falhas. Zhao et al [15], mencionam que cada classe de vento pode estar representada por uma taxa de falhas -λ e o seu devido tempo de reparo -. O produto taxa de falhas x tempo de reparo, fornece o número de horas forçadas por ano e pode ser chamado de restaurabilidade, de acordo com Gold Book [16].…”

Section: E Estimativa Da Eap Através De Classes Considerando Downtimeunclassified

Influence of failure rate and downtime in annual energy produced on a horizontal axis wind turbine

Galani

Teixeira

Guerra

2015

IEEE Latin Am. Trans.

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Following the growth trend and consolidation of wind power as a renewable source of energy in the global market, promising investments are likely to be made in Brazil in the next few years. Aiming to ensure profitability for prospective investors, studies on feasilibity, reliability and availability have to be carried out. This paper presents a method of calculation of the energy produced in a year by a horizontal axis wind turbine, considering failure rate and downtime. As a parameter, failure rates and downtime from countries whose climates are different from Brazil's were used. The outcomes analysis showed that the failure rates interfered significantly with the amount of energy produced in a year.

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Modelagem de usinas eólicas para estudos de confiabilidade

Cited by 13 publications

References 7 publications

Wind power renewable energy generation to reduce Cost and the greenhouse effect

Wind power renewable energy generation to reduce Cost and the greenhouse effect

A Matriz Energética Baiana E O Potencial De Aproveitamento Solar E Eólico Na Geração De Energia Elétrica No Estado Da Bahia

Influence of failure rate and downtime in annual energy produced on a horizontal axis wind turbine

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