Fuzzy logic control of variable speed induction machine wind generation system

This paper presents the use of fuzzy logic control (FLC) of a variable speed induction machine wind generation system. The generation system uses three fuzzy logic controllers (FLC´s), first fuzzy logic controller tracks the generator speed with wind velocity to extract maximum power. Second fuzzy logic controller programs the machine flux for light load efficiency improvement. Third fuzzy logic controller provides robust speed control against wind vortex and turbine oscillatory torque. By selecting appropriate fuzzy rules are designed to tune the parameters of conventional PI controller, the performance of the wind generation system has improved significantly compare to conventional PI controller. The performance of the wind generation system evaluated through the toolbox simulink of matlab.