Publicação
Doubly-fed induction generator wind turbine system
| Resumo: | The production of electrical energy resorting to fossil fuels contributes to the increase in the emissions of greenhouse gases, more specifically CO2, for the atmosphere. In the last decades, there have been increasing environmental concerns regarding the current status of the electrical energy production, which has increased the investment in the renewable energies, in hopes for a more sustainable energy, without the emission of greenhouse gases. One of these renewable energies, is wind energy, which has enormous potential in Portugal, and that has been getting a bigger active role in the world. The concept of wind energy production with a variable speed generator has gotten a lot of attention due to the fact that the control methods used need to be improved and more efficient. As such, this project is focused on the development of a control system for a doubly-fed induction generator (DFIG), so that it is possible to extract the maximum power possible. To make this possible, it is used a back-to-back converter composed of two converters, a AC-DC converter (Alternating Current – Direct Current), called rectifier, and a DC-AC converter (Direct Current – Alternating Current), called inverter, and a DC-link capacitor connected in between them. These converters are controlled by means of a control circuit, and are inserted in a wind turbine generator system (WTGS). The system is tested in computer simulation environment to prove the concept. To develop this project, it is necessary a study of each component of the WTGS, specially the DFIG and its mathematical model, to make possible the development of the control system as well as all of the interface circuits. |
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| Autores principais: | Melo, Fábio Alexandre Amorim |
| Assunto: | Wind energy Wind turbine Wind turbine generator system Back-to-back converter Doubly-fed inductive generator Energia eólica Turbina eólica Sistema gerador de turbina eólica Conversor back-to-back Gerador indutivo duplamente alimentado Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática |
| Ano: | 2019 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade do Minho |
| Idioma: | inglês |
| Origem: | RepositóriUM - Universidade do Minho |
| Resumo: | The production of electrical energy resorting to fossil fuels contributes to the increase in the emissions of greenhouse gases, more specifically CO2, for the atmosphere. In the last decades, there have been increasing environmental concerns regarding the current status of the electrical energy production, which has increased the investment in the renewable energies, in hopes for a more sustainable energy, without the emission of greenhouse gases. One of these renewable energies, is wind energy, which has enormous potential in Portugal, and that has been getting a bigger active role in the world. The concept of wind energy production with a variable speed generator has gotten a lot of attention due to the fact that the control methods used need to be improved and more efficient. As such, this project is focused on the development of a control system for a doubly-fed induction generator (DFIG), so that it is possible to extract the maximum power possible. To make this possible, it is used a back-to-back converter composed of two converters, a AC-DC converter (Alternating Current – Direct Current), called rectifier, and a DC-AC converter (Direct Current – Alternating Current), called inverter, and a DC-link capacitor connected in between them. These converters are controlled by means of a control circuit, and are inserted in a wind turbine generator system (WTGS). The system is tested in computer simulation environment to prove the concept. To develop this project, it is necessary a study of each component of the WTGS, specially the DFIG and its mathematical model, to make possible the development of the control system as well as all of the interface circuits. |
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Atividades financiadas
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