为减小风力机尾迹的影响,以实现风场总功率最大化及风力机组气动性能全局协调控制的目标,采用大涡模拟(Large Eddy Simulation, LES)方法,基于致动线模型,利用开源CFD软件OpenFOAM对9种风力机组偏航控制及9种风场错列布置进行数值模拟,比较这18种方案的风场总功率,并结合流场参数分析不同尾迹控制策略影响风场下游风力机的流动机理.结果表明:尾迹对下游风力机气动性能影响严重;2种尾迹控制方法均可实现全风场优化,其中各偏航控制下,风场总功率最大可提高35.3%,风场错列布置时最大可提高68.5%.
Abstract
To reduce the adverse effects of wind turbine wakes, and to effectively maximize the total power output and coordinately control the aerodynamic performance of wind turbines, numerical simulations were conducted on the control strategies by 9 yaw and 9 staggered arrangements of wind turbines using OpenFOAM based on ALM and LES, so as to compare the total power output of the wind farm among above 18 wake control strageties, while the influencing mechanism of different wake control strategies on the downstream wind turbine flow was analyzed with the help of fluid field parameters. Results show that the wake severely affects the aerodynamic performance of the downstream wind turbine; both the wake control modes could optimize the global wind farm, and among all the yaw arrangements, the total power output could be impoved by a maximum of 35.3%, and among all the staggered arrangements, it could be improved by a maximum of 68.5%.
关键词
风力机组 /
尾迹 /
偏航 /
错列 /
OpenFOAM /
致动线模型
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Key words
wind turbine /
wake /
yaw arrangement /
staggered arrangement /
OpenFOAM /
ALM
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参考文献
[1] 丁勤卫, 李春, 周国龙, 等. 陆海风力机动态响应对比[J]. 动力工程学报, 2016, 36(1):65-73. DING Qinwei, LI Chun, ZHOU Guolong, et al. Comparison of dynamic response between stationary and floating wind turbines[J].Journal of Chinese Society of Power Engineering, 2016, 36(1):65-73.
[2] 李少华, 匡青峰, 吴殿文, 等. 1.2 MW风力机整机流场的数值模拟[J]. 动力工程学报, 2011, 31(7):551-556. LI Shaohua, KUANG Qingfeng, WU Dianwen, et al. Numerical simulation on flow field of a 1.2 MW wind turbine[J].Journal of Chinese Society of Power Engineering, 2011, 31(7):551-556.
[3] KECSKEMETY K M, MCNAMARA J J. Influence of wake dynamics on the performance and aeroelasticity of wind turbines[J].Renewable Energy, 2016, 88:333-345.
[4] GAO Xiaoxia, YANG Hongxing, LU Lin. Optimization of wind turbine layout position in a wind farm using a newly-developed two-dimensional wake model[J].Applied Energy, 2016, 174:192-200.
[5] HORNUNG C, VIELLIEBER M, CLASS A. Simulation of wake effects of wind farms using an actuator disk implementation[J].PAMM, 2015, 15(1):487-488.
[6] GEBRAAD P M O, FLEMING P A, van WINGERDEN J W. Comparison of actuation methods for wake control in wind plants[C]//Proceedings of American Control Conference. Chicago, IL:IEEE, 2015:1695-1701.
[7] FLEMING P A, GEBRAAD P M O, LEE S, et al. Evaluating techniques for redirecting turbine wakes using SOWFA[J].Renewable Energy, 2014, 70:211-218.
[8] 张昇龙. 水平轴风力机尾流场及其气动性能的研究[D]. 兰州:兰州理工大学, 2014.
[9] 贾彦, 刘璇, 李华, 等. 考虑尾流效应对风电场机组布局的影响分析[J]. 可再生能源, 2014, 32(4):429-435. JIA Yan, LIU Xuan, LI Hua, et al. Analysis of wind farm units layout considering wake effect[J].Renewable Energy Resources, 2014, 32(4):429-435.
[10] PINARD J P. Computer models for wind flow over mesoscale mountainous terrain applied to the Yukon[R]. Edmonton:International Conference on Engineering and Simulation, 1999:1-45.
[11] SHIVES M, CRAWFORD C. Adapted two-equation turbulence closures for actuator disk RANS simulations of wind & tidal turbine wakes[J].Renewable Energy, 2016, 92:273-292.
[12] 王强. 水平轴风力机三维空气动力学计算模型研究[D]. 北京:中国科学院研究生院(工程热物理研究所), 2014.
[13] 李少华, 岳巍澎, 匡青峰, 等. 双机组风力机尾流互扰及阵列的数值模拟[J]. 中国电机工程学报, 2011, 31(5):101-107. LI Shaohua, YUE Weipeng, KUANG Qingfeng, et al. Numerical simulation of wake interaction and array of double wind turbine[J].Proceedings of the CSEE, 2011, 31(5):101-107.
[14] 张晓春, 刘迈, 李晶. 大学物理全程导学[M]. 北京:中国电力出版社, 2010.
[15] SØRENSEN J N, SHEN W Z. Numerical modeling of wind turbine wakes[J].Journal of Fluids Engineering, 2002, 124(2):393-399.
[16] JIN Wenjie. Numerical simulation of wind turbine wakes based on actuator line method in NEK5000[D]. Stockholm:Royal Institute of Techno-logy, 2013.
[17] 刘磊. 风力机叶片非定常气动特性的研究[D]. 北京:中国科学院研究生院(工程热物理研究所), 2012.
[18] 李东岳. OpenFOAM中植入的PISOSIMPLE算法详解[EB/OL]. (2016-03-12)[2016-05-10]. http://www.doc88.com/p-2486927873190.html.
[19] 卞凤娇, 徐宇, 王强, 等. 基于OpenFOAM的风力机致动线模型研究[J]. 工程热物理学报, 2016, 37(1):72-75. BIAN Fengjiao, XU Yu, WANG Qiang, et al. Numerical study of actuator line model of wind turbine based on OpenFOAM platform[J].Journal of Engineering Thermophysics, 2016, 37(1):72-75.
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脚注
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基金
国家自然科学基金资助项目(51176129,51676131);上海市科学技术委员会资助项目(13DZ2260900)
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