Study On Pitch Control System Of Wind Turbine Generator Based On Fuzzy Immune PID Control

Wind turbine generator system is a nonlinear system, including lots of complex variables. It is essential that control algorithm of pitch control system for assuring secure work of wind turbine generator system. Pitch control system is a tight coupling and high-order nonlinear system, and PID control strategy usually is used into pitch control system in industrial applications. However, traditional PID control strategy fail to produce a perfect effect.The dissertation has researched feasibility and integrated way of three control strategies, including fuzzy system, immune system and PID control strategy. Meanwhile, fuzzy immune control algorithm is used to pitch control system, and the dissertation has make a comparison by simulating and analyzing between traditional PID control, fuzzy PID control and fuzzy immune PID control.1. The dissertation has stated the development and current state of PID control, fuzzy control, immune feedback control and analyzed advantages and disadvantages of the three control method.2. Pitch control system has been analyzed by use three method, including Traditional PID control, fuzzy PID control and fuzzy immune PID control. Meanwhile, three controllers also have been designed.3. A simplified pitch control system model is viewed as control object. A simulation experiment that fuzzy immune PID control strategy is used to pitch control system has been made in MATLAB/SIMULINK, the results of which are compared with the results of traditional PID control and fuzzy PID control. The results show that the algorithm the dissertation has proposed have a good robust and anti-interfere ability. There is a good application value in industrial application.