Loading...
Publication
Banco de ensaios para micro geração eólica
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 16.23 MB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
O crescimento da utilização da energia eléctrica nos últimos dois séculos levou ao
desenvolvimento de várias tecnologias de produção de energia. Devido a factores
económicos e ambientais, as tecnologias que usam energias renováveis têm vindo a evoluir
bastante nas últimas décadas. A energia eólica representa hoje 9% de toda a energia
produzida na Europa, percentagem essa que se encontra em constante crescimento. A
micro produção eólica é também hoje uma realidade, pois além de rentável
economicamente, diminui o consumo da energia da rede eléctrica. Todos estes factores são
motivantes para o desenvolvimento deste tipo de energia.
O presente documento reflecte todo um trabalho de pesquisa, estudo e desenvolvimento de
um banco de ensaios de micro geração eólica. Este consiste no cálculo do binário que uma
determinada turbina faria em determinadas condições de vento, rotação e carga, baseado
nos princípios físicos de funcionamento das turbinas eólicas. Depois do cálculo é
transmitido esse binário ao gerador por meio de um motor eléctrico.
Desenvolveu-se uma função de análise de resultados das simulações realizadas no banco
de ensaios. Esta apenas analisa os resultados referentes às turbinas eólicas, não fazendo
parte da análise todos os dados referentes aos geradores.
Realizaram-se ensaios de turbinas com características distintas e diferentes tamanhos para
diferentes situações de vento e carga. Os resultados desses ensaios mostram que é possível
simular múltiplas situações obtendo resultados consistentes, ao mesmo tempo que se
verificam e comprovam os princípios físicos da energia eólica. Com eles, foi possível
testar e validar todo o projecto desenvolvido.
The growth in use of the electrical energy in the last two centuries led to the development of various energy production technologies. Due to economic and environmental factors the technologies that use renewable energies sources have evolved considerably in the recent decades. The wind energy represents nowadays 9% of all the produced energy in the Europe, percentage that is growing constantly. The micro wind production is also today a reality, as well as profitable decreases the energies' consume of the electrical net. All these factors are motivating the development of this kind of energy. This project reflects a complete research work, study and development of a test bank of micro wind generation. This consisted in calculating the torque that a particular turbine would have in certain wind conditions, rotation and load, based in the physical principles of wind turbine's operation. After the calculus, that torque is transmitted to the generator by an electric motor. A function of results’ analyzes of the realized simulations in the test bank is developed. This only analyzes the results referent to the wind turbines, not being part of the analysis all the generator's data. Turbine's tests with distinct characteristics and different sizes for different situations of wind and load are performed. The results of that tests permit to show the possibility of simulate multiples situations getting coherent results, while verify and prove of the physical principles of the wind energy. With that, test and validate all the developed project was possible.
The growth in use of the electrical energy in the last two centuries led to the development of various energy production technologies. Due to economic and environmental factors the technologies that use renewable energies sources have evolved considerably in the recent decades. The wind energy represents nowadays 9% of all the produced energy in the Europe, percentage that is growing constantly. The micro wind production is also today a reality, as well as profitable decreases the energies' consume of the electrical net. All these factors are motivating the development of this kind of energy. This project reflects a complete research work, study and development of a test bank of micro wind generation. This consisted in calculating the torque that a particular turbine would have in certain wind conditions, rotation and load, based in the physical principles of wind turbine's operation. After the calculus, that torque is transmitted to the generator by an electric motor. A function of results’ analyzes of the realized simulations in the test bank is developed. This only analyzes the results referent to the wind turbines, not being part of the analysis all the generator's data. Turbine's tests with distinct characteristics and different sizes for different situations of wind and load are performed. The results of that tests permit to show the possibility of simulate multiples situations getting coherent results, while verify and prove of the physical principles of the wind energy. With that, test and validate all the developed project was possible.
Description
Mestrado em Engenharia Electrotécnica e de Computadores
Keywords
Energia eólica Turbina eólica Vento Potência Binário Limite de Betz Coeficiente de potência Coeficiente de binário TIP Speed Ratio
Pedagogical Context
Citation
Publisher
Instituto Politécnico do Porto. Instituto Superior de Engenharia do Porto