中文摘要：

变速变桨风力发电机组在额定风速以上的运行状态下，采取变桨控制来稳定输出功率。由于风速的随机性及风电机组参数的时变性，传统控制策略并不理想。提出了一种遗传算法比例积分微分（GA-PID）变桨控制器，利用遗传算法（GA）优化比例积分微分（PID）参数，增强了系统的鲁棒性。分析了风力机组的变桨控制原理．给出了遗传算法PID的实现步骤。最后通过仿真和实验验证了GA-PID控制器的优越性。

英文摘要：

Above rated wind speed,the variable-speed and variable pitch wind generation turbine use pitch control to stabilize the out-put power.Due to the randomness of wind speed and time-varying of wind generator parameter, tradi- tional control method is not ideal.A genetic algorithm proportional integral differentiational（GA-PID） controller is propo- sed,using genetic algorithm to optimize PID parameters,which enhances the robustness of the system.The theory of the wind turbine is analyzed and the principle of pitch control is studied, and the implementing steps of GA-PID is given.Finally, the superiority of the GA-PID controller is verified through the simulation and experiment.