摘  要：目前兆瓦级风电机组基本都采用了变桨距系统，由于传统PID伺服系统控制存在输出转矩不能够平滑地踪负载转矩的变化的缺陷，所以本文引入模糊控制，设计电动变桨伺服系统的模糊控制器，对变桨系统的转速、转矩进行了有效的跟踪控制。最后以国内典型1兆瓦风力发电机型为例建模进行仿真分析。

关键词：电动变桨；伺服控制；模糊控制；风力发电

Abstract: At present，pitch control system isadopted in MW class wind turbine. This paper introduced fuzzy control, designed fuzzy controller of pitchservo system which controlled therotational speed and torque of pitch system effectively, because the traditional PID control system torque