Single large wind turbine field experiment at high altitude

Abstract

Abstract: In order to improve the performance of large-scale wind turbines in high-altitude areas, the 3.3 MW horizontal-axis wind turbine is taken as the research object. The inflow of wind turbines is measured by the Nacelle-type Lidar measures through the field experiment method. At the same time, the wind turbine wake is measured by the ground wind profile Lidar. Firstly, the inflow wind speed and wind direction measured by the Lidar in one day are compared with the wind speed and wind direction meter data on the nacelle, and the inflow wind speed measured by the Nacelle-type Lidar is extracted for a period of time. Secondly, the wake wind direction is compared with the inflow wind direction, the wake velocity profile and the inflow velocity profile. The results show that the inflow velocity measured by the Lidar has a strong correlation with the nacelle anemometer. The overall level of the wind deviation of the nacelle is slightly smaller than that of the anemometer, and the inflow wind speed will decrease with the distance from the rotor. The main wind direction distribution of the wake is consistent with the main wind direction of the inflow. With the increase of the position of the downstream measuring point from the wind wheel, the recovery of wake velocity loss is getting faster and faster.

Key words: wind turbine, experiment, remote sensing technology

CLC Number:

TK83

WANG Dian, YANG Cong-xin, WANG Yin, ZHANG Gen-hao, WU Fa-ming, DING Bai-cen. Single large wind turbine field experiment at high altitude[J]. Journal of Lanzhou University of Technology, 2022, 48(1): 45-52.

References

[1] KAWABATA H,KIKUSHIMA Y,KOGAKI T.Wind profile and power performance measurements using a nine-beam nacelle lidar [J].American Journal of Mechanical Engineering,2018,6(2):75-82.
[2] COLLIS R T H.Lidar-A new atmospheric probe [J].Quarterly Journal of the Royal Meteorological Society,1966,92(392):220-230.
[3] ANSMANN A,RIEBESELL M,WEITKAMP C.Measurement of atmospheric aerosol extinction profiles with a Raman lidar [J].Optics Letters,1990,15(13):746-748.
[4] SMITH D A,HARRIS M.Wind turbine control having a Lidar wind speed measurement apparatus:US7281891 [P].2007-10-16.
[5] MACHEFAUX E,LARSEN G C,TROLDBORG N,et al.Single wake meandering,advection and expansion-An analysis using an adapted pulsed lidar and CFD LES-ACL simulations [C]//European Wind Energy Conference and Exhibition 2013.Vienna:European Wind Energy Association,2013.
[6] BODINI N,LUNDQUIST J K,KIRINCICH A.U.S. east coast lidar measurements show offshore wind turbines will encounter very low atmospheric turbulence [J].Geophysical Research Letters,2019,46(10):5582-5591.
[7] TORRES GARCIA E,AUBRUN S,COUPIAC O,et al.Statistical characteristics of interacting wind turbine wakes from a 7-month lidar measurement campaign [J].Renewable energy,2019,130:1-11.
[8] 张岩,王冬冬.激光雷达测风系统在风电机组功率曲线测试中的应用研究 [J].太阳能学报,2017,38(6):1489-1494.
[9] 王晓宇.风力机尾流对测风仪数据精度的影响研究 [D].西安:西安理工大学,2018.
[10] 马东.激光雷达测风仪在风电机组偏航误差测试中的应用研究 [J].应用能源技术,2015(11):5-7.
[11] 尹嘉萍.风机尾流场与海气边界层风场的多普勒激光雷达观测研究 [D].青岛:中国海洋大学.2015
[12] VAN SARK W G J H M,VAN DER VELDE H C,COELINGH J P,et al.Do we really need rotor equivalent wind speed [J].Wind Energy,2019,22(6):745-763.
[13] HAN X C,DOU P L,XUE Y Y.Study on the influence of attitude angle on Lidar wind measurement results[C]//2017 3rd International Conference on Energy,Environment and Materials Science.[S.l.]:IOP,2017.
[14] BOT E T G.Flow analysis with nacelle-mounted Lidar [M].Netherlands:Energy research Centre of the Netherlands,2016.
[15] HEISEL M,HONG J R,GUALA M.The spectral signature of wind turbine wake meandering:A wind tunnel andfield-scale study [J].Wind Energy,2018,21(9):715-731.