Fuzzy pitch angle control of wind hybrid turbine: To power quality improvement

Wind energy is not constant and because of nonlinear effect of wind speed in output power of windmill, the generated power of wind turbine generators (WTGs) fluctuates. In order to reduce fluctuation, different methods are available. This paper presents a control strategy based on fuzzy modeling in different wind speeds to control frequency and together with a hybrid system that controls voltage, can improve power quality of a wind-hybrid power generation system. The simulation results show the effectiveness of the proposed method.