新型组合式垂直轴风机的优化设计与性能研究  

Optimum design and study on the properties of a new combined type vertical axis wind turbine

作　　者：徐璋[1] 霍玉雷 陈勇[1] 杨洪伟[1] 谈宏飞[1] 

机构地区：[1]浙江工业大学能源与动力工程研究所,浙江杭州310014

出　　处：《浙江工业大学学报》2015年第3期261-264,共4页Journal of Zhejiang University of Technology

摘　　要：对于垂直轴风机,升力型风能转化效率高,但是其在低风速下不能自启动;阻力型可以在低风速下自启动,但其转速低,而且其风能利用率低.为了充分发挥二者性能,我们设计制作了一种新型组合式垂直轴风力机,通过采用超越离合器作为连接件将Darrieus风力机和Savonius风力机组合而成,并对其进行了三维数值模拟和吹风实验.通过对比有无加装S型风机时风机启动风速和输出功率的模拟结果与实验数据,发现该新型组合式垂直轴风机启动风速明显降低,风能利用率仅略有下降,很好地实现了互补.For vertical axis wind turbines（VAWT）,the lift type has a high conversion efficiency but it cannot start itself at low wind speed;the resistance type can start itself at low wind speed, but it also has a low fan speed and a low wind power utilization coefficient. In order to fully take advantage of their merits, a new-type VAWT, which joined a Savonius wind turbine and a Darrieus wind turbine by an overrunning clutch, was proposed. 3-d numerical simulation and experimental wind tunnel tests were carried out. By comparing the power output and start-up wind speed between the units with and without S-type wind turbine, it shows that the start-up wind speed of this new type VAWT decreases significantly, while the wind power utilization coefficient only reduces slightly, which combines the advantages of two types of wind turbines.

关 键 词：CFD 垂直轴风力机 升力型 阻力型 超越离合器 吹风实验 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]