Contribuições para a Avaliação Técnica da Energia das Ondas em Portugal: O Caso do Pico (Açores)
(Contributions to the Technical Assessment of Wave Energy in Portugal: The Case of Pico (Azores))
Renato Veloso (firstname.lastname@example.org)1, Rui Castro (email@example.com)2
1IST - Universidade de Lisboa2INESC-ID/IST - Universidade de Lisboa
This paper appears in: Revista IEEE América Latina
Publication Date: Sept. 2015
Volume: 13, Issue: 9
Ocean waves have a high potential to become a reference among the renewable energies with economic viability, in the future. Currently, there is in Portugal a WaveRoller technology experimental facility delivering power to the grid. However, Oscillating Water Column (OWC) is the most used technology to capture the energy from the waves. In this paper, a full integrated model of an OWC installation is presented. This model incorporates dedicated models of its components: pneumatic chamber, Wells turbine and Doubly Fed Induction Generator (DFIG). Data to feed the model is taken from Pico (Azores) power plant. The implementation in MATLAB®/Simulink® environment allows to carry on some simulations, regarding the behavior of the OWC system in the presence of pressure increases in the pneumatic chamber (meaning a higher airflow in the turbine). The results allow the conclusion that the speed control feature is crucial to obtain an optimized operation of the system.
Wave energy, Oscillating Water Column, Wells turbine, Doubly Fed Induction Generator.
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