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Modeling and Simulation of Wave Energy Generation Plants: Output Power Control

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4 Author(s)
Modesto Amundarain ; Department of Automatic Control and Systems Engineering, University of the Basque Country, Bilbao, Spain ; Mikel Alberdi ; Aitor J. Garrido ; Izaskun Garrido

The control and simulation of the power delivered to the grid are becoming an important topic, particularly when the number of distributed power generation systems increases. In this paper, two different control schemes for an oscillating-water-column Wells-turbine-generator module are simulated, implemented, and compared. In the first method, the control system does appropriately adapt the slip of the induction generator according to the pressure drop entry in order to maximize the generated power, while in the second method, a traditional proportional-integral-derivative-based control is implemented in order to deal with the desired power-reference-tracking problem. It will be shown how the controllers avoid the stalling behavior and that the average power of the generator fed into the grid is significantly higher in the controlled cases than in the uncontrolled one while providing the desired output power.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:58 ,  Issue: 1 )