Loading...

Adaptive Robust Control of Floating Offshore Wind Turbines

Izanloo, Mohammad | 2018

558 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 52808 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Sadati, Nasser
  7. Abstract:
  8. Nowadays, modern life needs energy resources. In the last few centuries, countries have focused on the use of fossil fuels. However, excessive use of fossil fuels, such as oil and coal, has resulted in enormous environmental hazards. Global warming and air pollution are the most visible manifestations of these hazards. In recent years, energy researchers have been looking for alternative sources. The result of this approach is to pay attention to clean and renewable resources such as wind energy.Wind turbines are used to generate electrical energy out of wind. Among the different types, floating offshore wind turbines have been mostly considered because of various benefits. However, they face more challenges than onshore wind turbines due to their installation on the floating platforms, because the wind and sea waves cause the wind turbine to move. Above the rated wind speed, the wind turbine power should be regulated to the rated value. On the one hand, to reduce the cost of produced energy, increasing the life span of the wind turbine should be considered. In floating offshore wind turbines, the reduction of platform movements is followed for this purpose. In this research, using adaptive robust control, power regulation and platform pitch movement reduction of floating offshore wind turbine are both considered. Adaptive robust control law is presented using estimated boundaries in accordance with the adaption law without the need for the boundary of uncertainties and external disturbances. Control objectives are followed by controlling the blade pitch angle and the generator torque as two control signals. The designed controller is evaluated through simulation with an NREL floating offshore 5MW baseline wind turbine model with spar buoy platform. The performance of the proposed control strategy is verified using the FAST software environment, and the results are compared with the baseline controller
  9. Keywords:
  10. Wind Energy ; Floating Offshore Wind Turbine ; Adaptive Robust Control ; Transmission Power Adjustment ; Offshore Wind Energy ; Renewable Energy Resources ; Pitch Movement Reduction

 Digital Object List

 Bookmark

No TOC