基于统一变桨距控制的立轴风力机启动性能  

Self-starting capacity of vertical axis wind turbine with collective pitch control

作　　者：张立勋[1] 梁迎彬 张松[1] 王康[1] 郭健[1] 

机构地区：[1]哈尔滨工程大学机电工程学院,哈尔滨150001

出　　处：《吉林大学学报（工学版）》2014年第4期991-997,共7页Journal of Jilin University:Engineering and Technology Edition

基　　金：黑龙江省自然科学基金项目(E201216);中央高校基本科研业务费专项基金项目(HEUCF110707)

摘　　要：为提高立轴风力机的启动能力，提出了适宜低尖速比运行的桨距角变化规律，并设计了一种变桨执行机构以实现多组叶片的统一变桨距控制。从变桨执行机构、翼型选择、风轮结构和控制系统等方面介绍样机设计原理，并进行了样机性能实验。结果表明：对称翼型厚度为15％时最佳，而非对称翼型的最大厚度不超过10．4％；实验数据与理论值变化趋势一致，理论值相比实验数据高出20%～30％；通过增加上盘面顺风区叶片迎风面积可以提高启动能力。In order to improve the self-starting capacity of Vertical Axis Wind Turbine （VAWT）, the variation rule of blade pitch angle, which is suitable for the cases of low Tip Speed Ratio （TSR）, is proposed; an actuator for collective pitch control is designed, which can change the blade pitch angle of multiple blades. A prototype is presented from the aspects of actuator of collective pitch control, airfoil selection, structure of wind wheel and control system. The performance tests of the prototype were carried out. The results show that the best thickness of the symmetrical airfoil is 15%, while the maximum thickness of asymmetrical airfoil is less than 10. 4%. The theoretical data show similar variation trend but is 20%-30% higher than experimental data. The results also show that, to improve the self-starting toque, it is effective to increase the frontal area of the blade at downwind region of upstream.

关 键 词：动力机械工程 立轴风力机 统一变桨距控制 启动性能 

分 类 号：TK83[动力工程及工程热物理—流体机械及工程]