Title :
Contributions to the Technical Assessment of Wave Energy in Portugal: The Case of Pico (Azores)
Author :
Veloso, Renato ; Castro, Rui
Author_Institution :
Inst. Super. Tecnico, Univ. of Lisbon, Lisbon, Portugal
Abstract :
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.
Keywords :
hydraulic turbines; ocean waves; power generation control; power generation economics; power grids; velocity control; wave power plants; Azores; DFIG; MATLAB-Simulink; OWC installation; OWC system; Pico power plant; Portugal; WaveRoller technology experimental facility; Wells turbine; airflow; doubly fed induction generator; economic viability; ocean waves; oscillating water column; pneumatic chamber; renewable energies; speed control feature; wave energy; Adaptation models; Induction generators; MATLAB; Mathematical model; Rotors; Technical management; Turbines; Doubly Fed Induction Generator; Oscillating Water Column; Wave energy; Wells turbine;
Journal_Title :
Latin America Transactions, IEEE (Revista IEEE America Latina)
DOI :
10.1109/TLA.2015.7350040