1、毕业设计（论文） 1 摘摘 要要 风能作为一种可再生能源越来越受到世界各国政府的重视。与此同时，对风力发电 技术和装备的研究开发也日益成为科技领域和企业界关注的热点课题项目之一。 本文对风力发电机的主体机械部分中的变桨系统及偏航系统进行了一定的研究、 分析。由于风力发电机工作环境的恶劣性，这就要求其各个部件的维护周期要长，从而 便于降低维护费用，延长工作时间。 首先，采用叶素理论建立了风电机组变桨距调节原理。设计了一套新型变距传动机 构电动变桨距传动机构。构建了基于 CAXA 的三维实体模型，施以正弦运动律，其 动态仿真结果验证了该变桨模型建立的有效性和准确性，进一步为风力机变桨距系统的 优化
2、设计奠定了基础。 其次，针对风力发电机偏航时的要求设计了偏航控制器，改以前的遮掩式角度传感 器为绝对式数字角度传感器，增加了系统的灵敏性。 关键词：关键词：风力发电；变桨距；偏航系统。 毕业设计（论文） 2 Abstract Wind energy, as a kind of renewable energy, is paid attention to by governments all around the world. The wind power technology and its equipment research become a hot spot topic for tech
3、nical circles and enterprise. This article has studied the brake system and Yaw-control system of wind-driven generator. As wind-driven generator working conditions is bad, in order to reduce the maintenance cost the maintenance cycle of its each part requests to be longer. First, using theory estab
4、lished by the wind generator change propeller from adjustment principle. Designed a set of new change from transmission mechanismElectric change propeller from transmission mechanism. Constructed based on three-dimensional solid model CAXA, a sinusoidal motion law, the dynamic simulation results show the effectiveness of pitch and accuracy of model, further wind turbine pitch systems laid the foundation for optimal design. Second, for wind turbine yaw when the requirements for the desig
