摘要
为降低风道式风力发电机的成本,提出了一种风力发电机迎风及调速方法。在风道装置始终正对风向的条件下,由于偏心机构和凸轮机构的共同作用,在风速低时,风轮正对着风向,在风速超限时,风轮相应侧偏,以限制风轮转速。基于空气动力学基本理论,推导出其结构参数的表达式,并叙述了各结构参数的选取原则。该方法可有效地起到大风限速的作用,提高风力发电机工作的稳定性。该调速机构结构简单、成本低,安装维护方便。
In order to reduce the cost of duct-type wind generator, a method of wind facing and speed control was proposed. Under the condition that the duct device always faces the wind direction, through the joint function of eccentric device and cam gear, the wind turbine will face the wind direction in case the wind speed is lower, and the wind turbine should be deflected correspondingly in order to limit the rotary speed of the turbine in case the wind speed is over the limit. Based on aerodynamic principle, the expression of structure parameters was deduced, the rules for various parameters determination was also proposed. This method could effectively limit the speed in strong wind condition, and could improve the stability of wind generator. The speed regulating device has the advantages of simple structure, low cost and easily installation and maintenance.
出处
《可再生能源》
CAS
北大核心
2011年第2期104-106,111,共4页
Renewable Energy Resources
基金
山东省科技计划重大专项项目(2005GG21006001)
关键词
风力发电机
限速
凸轮机构
wind generator
speed control
cam gear
