Fuzzy pitch angle control for grid connected variable-speed wind turbine system

Abstract

This paper studies the control of a grid connected variable-speed wind turbine control using the permanent magnet synchronous generator. A pitch angle controller based on the fuzzy logic is proposed for adjusting the wind turbine aerodynamic torque when wind speed is above rated speed. The fuzzy logic controller is effective to compensate the nonlinear characteristic of the pitch angle to the wind speed. The proposed method effectiveness is verified by MATLAB simulation results.