Research on combination of fuzzy immune PID and pitch angle

Because of the intricate construction of wind equipment, particularly this irregularity and nonlinearity of the native air velocity magnitude seriously affects the stability of wind turbine output power. The conventional control techniques are difficult to meet the precise demands of the system. By introducing the fuzzy immune PID command strategy, this paper aims to embed the fuzzy control and immune-feedback algorithms into the traditional PID control framework in order to comprehend adjustment at any moment and optimize of the PID coefficient according to different wind speeds. This adjustment is designed to cope with the environmental conditions where the wind speed fluctuates drastically to ensure that the system can track the rated power efficiently. Finally, the Simulink simulation waveforms exhibition that fuzzy immune PID command possesses better stability and tracking adequacy than the conventional command pattern in step, flatus, and rushing winds.