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Modelling and Electromechanical Control of Variable Speed wind Turbine in Order to Gain Maximum Wind Power

Golnary, Farshad | 2017

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50437 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Moradi, Hamed
  7. Abstract:
  8. In this research, the main purpose of the controller design is in the second region of operation of a wind turbine, which involves absorbing the maximum energy from the wind. WindPACT 1.5MW turbine has been investigated and the power coefficient of this turbine has been obtained using WT-PERF and FAST softwares. Simulations show that the results of both methods are well matched. Then, using ANFIS, a method for estimating the wind speed is derived from the data obtained by FAST. Inputs to the ANFIS system are the turbine aerodynamic power, rotor speed and blade pitch angle while the output of ANFIS system is the estimated wind speed. The maximum power coefficient of the wind turbine occurs when the turbine speed is equal to the desired one. In the second region of operation, the generator torque is input and it aims to adjust the rotor speed by the generator torque. To this end, five control methods have been developed to regulate the rotor speed. Turbsim software has been used to generate the wind speed profiles. In order to investigate the performance and validation of control methods, the control methods have been applied to the actual turbine system using FAST software and the methods have been compared. It should be noted that FAST software is a reference software for designing and simulating the turbine behavior, and the results are reliable. Finally, in order to investigate the fatigue life of wind turbine blade by using Mlife software, the lifetime of the turbine blade under the out of plane vibrations has been investigated
  9. Keywords:
  10. Wind Energy ; Nonlinear Control ; Wind Speed Forecasting ; Fast Anonymization of Bigdata Stream (FAST) ; Sliding Mode Control ; Electromechanical Control

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