Fluctuations Mitigation of Variable Speed Wind Turbine through Optimized Centralized Controller

Ali Mohammadi (University of Sistan and Baluchestan)
Sajjad Farajianpour (University of Sistan and Baluchestan)
Saeed Tavakoli (University of Sistan and Baluchestan)
S. Masoud Barakati (University of Sistan and Baluchestan)

TELKOMNIKA (Telecommunication Computing Electronics and Control)
Vol 10, No 4: December 2012

A wind energy conversion system (WECS) including a variable wind turbine in grid-connected mode is considered to control. In this paper, each component of WECS model is systematically presented and then the integrated overall model is validated.Regarding to nonlinear nature of WECS and the complex system structure as multiple-input multiple-output (MIMO), it is difficult to find a proper control strategy. To simplify the control design, a centralized controller, which is compatible with systematic modelling, is employed. In addition, to enhance the centralized controller performance, an optimization based on genetic algorithm (GA) is accomplished. Simulation results demonstate the effectivesness of the proposed control startegy to mitigation fluctuations.