知识导航
资源分类

垂直轴风力机变桨控制策略及气动性能影响研究

垂直轴风力机变桨控制策略及气动性能影响研究

RESEARCH ON PITCH CONTROL STRATEGY AND AERODYNAMIC PERFORMANCE OF VERTICAL AXIS WIND TURBINE

RESEARCH ON PITCH CONTROL STRATEGY AND AERODYNAMIC PERFORMANCE OF VERTICAL AXIS WIND TURBINE

doi:
10.19912/j.0254-0096.tynxb.2021-0234
摘要:
以H型Darrieus垂直轴风力机为研究对象,基于不同尖速比下攻角随相位角变化规律,提出一种俯仰角控制策略,即攻角较大时俯仰变化幅值较大,而攻角较小时幅值较小。通过数值计算了解此控制方式对气动性能的影响规律,分析变桨后不同旋转角度下风力机涡量场的变化,并讨论气动载荷变化的原因。结果表明:所提俯仰角控制策略可显著增强风力机功率系数,且尖速比较低时提升效果越显著,在TSR为1.25时功率系数提升高达146%。
Abstract:
The attack angle of the vertical axis wind turbine changes periodically during the operation. The blades are often in a dynamic stall state at low tip speed ratios,which greatly reduces their aerodynamic performance. Adjusting the angle of attack of the blades to control flow separation can improve its operating performance effectively. This paper takes the H-type Darrieus vertical axis wind turbine as the research object. Based on the rule that the variation of the angle of attack with the phase angle at different tip speed ratios,a pitch angle control strategy is proposed. That is when the angle of attack is larger,the amplitude of the change is larger,and when it is smaller,the amplitude of change is smaller,and then the influence of its control method on aerodynamic performance is verified through numerical calculation,the variation of vortex field of wind turbine is analyzed under different rotation angles,and the reason of aerodynamic load variation is also discussed. The results show that this pitch angle control strategy can significantly improve the power coefficient,and the lifting effect is more significant when the tip speed ratio is lower,at a TSR of 1.25,the power coefficient increases by 146%.
作者 张强 [1] 缪维跑 [1] 刘青松 [1] 李春 [2] 张万福 [2]
Author: Zhang Qiang[1] Miao Weipao[1] Liu Qingsong[1] Li Chun[2] Zhang Wanfu[2]
作者单位
  1. 上海理工大学能源与动力工程学院,上海 200093
  2. 上海理工大学能源与动力工程学院,上海 200093;上海市动力工程多相流动与传热重点实验室,上海 200093
期 刊: 太阳能学报 ISTIC EI SCI PKU CSSCI
Journal: Acta Energiae Solaris Sinica
年,卷(期) 2022, 43(10)
分类号 TK83
关键词: 垂直轴风力机 知识脉络 变桨 知识脉络 控制策略 知识脉络 气动性能 知识脉络
Keywords: vertical axis wind turbines pitch control strategy aerodynamic performance
机标分类号 TH43 TK83 TM315
基金项目 国家自然科学基金,国家自然科学基金,上海科技创新行动计划地方院校能力建设项目
参考文献和引证文献
返回顶部参考文献
返回顶部引证文献
返回顶部本文读者也读过
返回顶部相似文献
返回顶部相关博文

知识产权声明| 服务承诺| 联系我们| 人才招聘| 客户服务| 关于我们

京ICP证:010071  互联网出版许可证:新出网证(京)字042号  京公网安备11010802020237号
万方数据知识服务平台--国家科技支撑计划资助项目(编号:2006BAH03B01)©北京万方数据股份有限公司  万方数据电子出版社