摘要
功率调节是风力发电的关键技术之一,是保证风力发电机长期安全稳定运行的重要条件。伞形风力发电机是一种带有伞形功率调节机构的下风向风力发电机,叶片可做伞形收放动作。当风速超过额定风速时,伞形风力发电机可通过自身的调节机构,改变叶片的收缩角,使风轮扫掠面积减小,从而控制风力发电机功率输出,保证风力发电机的输出功率在额定值附近。后期试验证明,伞形风力发电机对功率输出有较好的调节作用。伞形风力发电机结构相对简单,对多变性天气适应能力较强,有广阔的应用前景。
Capacity control is a key technology to guarantee wind power system to run safely and steadily. The umbrella wind turbine is a new wind turbine with an umbrella shape capacity control system, it＇s fan blades can fold like an umbrella. When the wind speed exceeds the rated wind speed, the umbrella wind turbine can decrease it＇s swept area through change of the fan blade tilt angle. In this way, the power output fluctuates around the rated power. The later experiment also proves that the umbrella wind turbine can accommodate the power output well. The umbrella wind turbine not only has a relatively simple machinery, but also can adapt to changeable weather, it will has a bright prospect.
出处
《可再生能源》
CAS
北大核心
2013年第5期68-71,共4页
Renewable Energy Resources
基金
国家科技支撑计划(2012BAA06B02)
