讲解了变桨距风力发电机组的相关知识，包括其特点、运行控制系统及功率控制等。华北电力大学课堂使用的PPT。-On the variable pitch wind turbine related knowledge,the characteristics, operation control and power control. North China Electric Power University class using ppt.

THIS DYNAMIC PITCH CONTROL OF WIND FARM-THIS IS DYNAMIC PITCH CONTROL OF WIND FARM