Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 58, Issue 1, Pages 105-117Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2010.2047827
Keywords
Control; doubly fed induction generator (DFIG); oscillating water column (OWC); wave energy; Wells turbine
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Funding
- Universidad del Pais Vasco/Euskal Herriko Unibertsitatea [GIU07/08]
- Ministry of Science and Innovation (MICINN) [DPI2006-01677, ENE2009-07200]
- Basque Government [S-PE07UN04, S-PE08UN15, S-PE09UN14]
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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.
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