Study on aerodynamic characteristics of horizontal axis wind turbine under low-level jet inflow condition

doi:10.19912/j.0254-0096.tynxb.2018-0876

	Study on aerodynamic characteristics of horizontal axis wind turbine under low-level jet inflow condition
	Zhang, Xuyao; Yang, Congxin; Jin, Rui; Zhang, Yaguang; He, Pan
刊名	Taiyangneng Xuebao/Acta Energiae Solaris Sinica
	2021-03-28
卷号	42 期号:3 页码:1-8
关键词	Aerodynamic loads Boundary layers Energy utilization Speed Turbine components Wind Wind power Wind turbines Aerodynamic characteristics Forecasting accuracy Horizontal axis wind turbines Longitudinal force Maximum relative errors Turbulent wind fields Von karman spectrums Wind turbine rotors
ISSN号	0254-0096
DOI	10.19912/j.0254-0096.tynxb.2018-0876
英文摘要	In order to clarify the aerodynamic characteristics of the wind turbine rotor under Low-level Jet (LLJ) inflow condition, the different turbulent wind fields were established based on the engineered boundary layer wind speed model and Von Karman spectrum model. The output power and aerodynamic loads of the NREL 5 MW wind turbine rotor were studied under LLJ inflow conditions by comparison with the results under the uniform and shear inflow condition. The results show that if the blade pitch control is only based on the wind speed at the hub-height, although the incoming wind power is significantly increased under LLJ inflow condition, the output power of the rotor is reduced compared with the results under uniform and shear inflow condition at higher wind speeds. The unbalanced aerodynamic loads exerting on the rotor, including lateral force, longitudinal force, yaw moment and tilt moment, are less than results under shear inflow condition at higher wind speeds. In addition, the output power of the rotor predicted from the wind speed at the hub-height is higher than the actual result, and the maximum relative error is 89.4%. Therefore, under LLJ inflow conditions, in order to improve the wind energy utilization rate and the forecasting accuracy of the rotor output power, the wind speed at different heights should be taken into account when the rotor blade control and power prediction are carried out. © 2021, Solar Energy Periodical Office Co., Ltd. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/148420]
专题	能源与动力工程学院
作者单位	School of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhang, Xuyao,Yang, Congxin,Jin, Rui,et al. Study on aerodynamic characteristics of horizontal axis wind turbine under low-level jet inflow condition[J]. Taiyangneng Xuebao/Acta Energiae Solaris Sinica,2021,42(3):1-8.
APA	Zhang, Xuyao,Yang, Congxin,Jin, Rui,Zhang, Yaguang,&He, Pan.(2021).Study on aerodynamic characteristics of horizontal axis wind turbine under low-level jet inflow condition.Taiyangneng Xuebao/Acta Energiae Solaris Sinica,42(3),1-8.
MLA	Zhang, Xuyao,et al."Study on aerodynamic characteristics of horizontal axis wind turbine under low-level jet inflow condition".Taiyangneng Xuebao/Acta Energiae Solaris Sinica 42.3(2021):1-8.