全程变桨距风能转换装置的研究  

Research on feather wind power through various of wind speed

作　　者：吴永忠[1] 贾斌[2] 刘伟[1] 

机构地区：[1]水利部牧区水利科学研究所,内蒙古呼和浩特010010 [2]内蒙古工业大学,内蒙古呼和浩特010062

出　　处：《可再生能源》2005年第6期24-27,共4页Renewable Energy Resources

摘　　要：为了实现风力机的最大能量转换,提出了在整个工作风速范围内采用风轮正面的风压作为变桨距的 控制信号,实现最大功率跟踪变桨距。通过计算,设计制造出了风压式全程变桨距风能转换装置。试验结果显 示:该风能转换装置的高效运行范围从一个极小的区间扩展为一个较宽的区间;当风速大于额定风速时,风力 机仍然能够保持稳定的工作转速,在起动前使桨叶处于阻风状态,起动力矩增大了近20倍。To get the biggest power coefficient at various of wind speed, put out the argument of controlling wind turbine according to the wind pressure which act on the wind wheel swept area. Design and make a wind turbine which can adjust pitch angle of oar leaves through various of wind speed, and make experiment of characteristic. According to the effect of experiment, we can see clearly that the device may obtain higher output not on a point but in a more wide area. On the same time, we keep the output power of wind turbine stable out of fixed wind speed range, and overcome the phenomenon which wind turbine lose speed in fixed wind speed, and make the wind turbine with 20 times bigger zero speed torque at lower wind speed.

关 键 词：风力机 变桨距 优化设计 功率特性 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]