| The wind direction wind speed faced by wind turbine operation is extremely unstable.It is difficult to establish the model of the control system.The conventional PID is used for fan control.The effect of improving the stability of the control system is not obvious,but the fuzzy control has no need.To establish the advantages of an accurate mathematical model,this paper combines the two to design the optimal power F-PID control system for the wind turbine.This paper focuses on the control system of a MW-class permanent-magnet direct-drive wind turbine,designs an F-PID controller,and completes the system’s overall design based on Bachmann’s M1 controller.Mainly for yaw and pitch control F-PID design,the main chapter first describes the principle of the yaw system operation,and then based on the Fuzzy control principle and design program to complete the yaw parameter self-tuning F-PID controller design,using MATLAB /Simulink completes the simulation of yaw F-PID control,and compares it with the conventional PID control simulation,and finally completes the program design of PLC calling F-PID control.The principle of variable pitch control and power regulation was introduced in power control.Then,the F-PID controller was designed for optimal power tracking,and then the control program design in PLC was completed.By using matlab/simulink to model and simulate yaw and variable pitch F-PID control respectively,the results are compared with the PID control simulation results alone.In the yaw simulation comparison,the F-PID controller changes wind direction angles.Compared with the conventional PID,the response speed is faster,the overshoot is reduced compared with the conventional PID,and the adjustment time is about 8seconds;therefore,in the comparison of the pitch power tracking simulation,under the precondition of high wind speed,the F-PID controller Can better stabilize power near rated power.The comparison results show that F-PID control has better robust performance and is ideal for use in fan control systems. |
