Effects of turbulence intensity on dynamic characteristics and load of wind turbine

doi:10.11975/j.issn.1002-6819.2020.13.006

	Effects of turbulence intensity on dynamic characteristics and load of wind turbine
	Wu, Faming 1,2; Yang, Congxin1 ; Wang, Dian 2; Yang, Liu 2
	2020-07-01
发表期刊	Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering
ISSN	10026819
卷号	36 期号:13 页码:48-55
摘要	In order to study the influence of turbulence intensity on the dynamic characteristics and aerodynamic load, simulation tests and experiments are carried out for a horizontal axis wind turbine with three blades whose rated power is 3.3MW. Furthermore, the power spectrum analysis of incoming wind speed and dominant load is carried out. Simulation tests are taken under the condition of four turbulence intensities of 0.10, 0.12, 0.14 and 0.16, whose results show that with the increase of turbulence intensity, the vibration acceleration, load and equivalent fatigue load of wind turbine nacelle change regularly. In order to verify the rationality of the simulation results, the data acquisition and analysis of a type-test wind turbine for more than one year were carried out. The main conclusions are as follows: 1) From the simulation results, with the increase of turbulence intensity, the vibration acceleration of wind turbine nacelle increases. When the turbulence intensity increases by 0.02, the acceleration increases by 10%. Besides, there is also a strong correlation between the side-to-side vibration and turbulence intensity where there is a peak point near the rated wind speed. The reason is that there is a switching process from torque control to pitch control, and there is a certain impact. 2) From the simulation results, with the increase of turbulence intensity, the key load and fatigue load of important components of wind turbine increase. When the turbulence intensity increases by 0.02, the equivalent fatigue loads of blade root MY, hub MY, tower top and tower bottom MY increase by nearly 10%. From the result of power spectrum analysis, the turbulence intensity has obvious influence on wind turbine, especially on MY load of blade, hub and tower top. 3) From the test results, the turbulence intensity is strongly related to the vibration and fatigue equivalent load of the wind turbine nacelle, and vibration and load of the unit also change regularly under the four different turbulence intensities of 0.06, 0.08, 0.10 and 0.12, which is in good agreement with the simulation results. From the above analysis, it can be seen that for areas with high turbulence intensity, the design load of wind turbine should be modified with appropriate coefficient in order to ensure the safety of fatigue life of wind turbine. Therefore, the bearing capacity of wind turbine components in high turbulence area should be strengthened. This provides a basis for the micro sitting of wind turbines in wind farms, and has a certain guiding significance for the design of wind turbines. © 2020, Editorial Department of the Transactions of the Chinese Society of Agricultural Engineering. All right reserved.
关键词	Aerodynamics Data acquisition Power spectrum Spectrum analysis Turbomachine blades Turbulence Wind Wind power Wind turbines Dynamic characteristics Guiding significances Horizontal axis wind turbines Simulation tests Strong correlation Switching process Turbulence intensity Vibration acceleration
DOI	10.11975/j.issn.1002-6819.2020.13.006
收录类别	EI
语种	中文
出版者	Chinese Society of Agricultural Engineering
EI入藏号	20203509114928
EI主题词	Fatigue of materials
EI分类号	443.1 Atmospheric Properties - 615.8 Wind Power (Before 1993, use code 611 ) - 651.1 Aerodynamics, General - 723.2 Data Processing and Image Processing - 951 Materials Science
来源库	Compendex
分类代码	443.1 Atmospheric Properties - 615.8 Wind Power (Before 1993, use code 611 ) - 651.1 Aerodynamics, General - 723.2 Data Processing and Image Processing - 951 Materials Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/115473
专题	能源与动力工程学院
作者单位	1.College of Energy and Power Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.CRRC Zhuzhou Institute Co., Ltd., Wind Power Business Unit, Zhuzhou; 412000, China
第一作者单位	能源与动力工程学院
第一作者的第一单位	能源与动力工程学院
推荐引用方式 GB/T 7714	Wu, Faming,Yang, Congxin,Wang, Dian,et al. Effects of turbulence intensity on dynamic characteristics and load of wind turbine[J]. Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering,2020,36(13):48-55.
APA	Wu, Faming,Yang, Congxin,Wang, Dian,&Yang, Liu.(2020).Effects of turbulence intensity on dynamic characteristics and load of wind turbine.Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering,36(13),48-55.
MLA	Wu, Faming,et al."Effects of turbulence intensity on dynamic characteristics and load of wind turbine".Nongye Gongcheng Xuebao/Transactions of the Chinese Society of Agricultural Engineering 36.13(2020):48-55.