A fuzzy improved linear active disturbance rejection control (Fuzzy-ILADRC) method for maximum power point tracking is proposed to address the problems of nonlinearity and susceptibility to external disturbances in permanent magnet direct drive wind power systems. An improved linear extended state observer is designed using the error between each state variable and its observed value

and its convergence is analyzed

indicating that the improved linear active disturbance rejection control can improve the response speed and observation accuracy of the system. Online optimization of the parameters of an improved linear active disturbance rejection controller is conducted incorporating fuzzy control

so as to make it have certain parameter self-tuning ability. The simulation results show that the Fuzzy-ILADRC control method has faster speed tracking

higher control accuracy

and no overshooting phenomenon than the traditional PI and LADRC control methods under different wind speed conditions

which can better realize the maximum power point tracking of the wind energy

with strong disturbance rejection capability and good robustness.