中国电力 ›› 2022, Vol. 55 ›› Issue (3): 187-192,212.DOI: 10.11930/j.issn.1004-9649.202011049

• 新能源 • 上一篇    下一篇

复杂地形风电场中风加速效应的实验研究

严晓生1, 李岳2, 高晓霞2, 王喜3   

  1. 1. 福建国电风力发电有限公司, 福建 福州 350800;
    2. 华北电力大学 能源动力与机械工程学院, 河北 保定 071003;
    3. 河北龙源风力发电有限公司, 河北 张家口 075000
  • 收稿日期:2020-11-13 修回日期:2021-10-29 出版日期:2022-03-28 发布日期:2022-03-29
  • 作者简介:严晓生(1981—),男,通信作者,高级工程师,从事风力机载荷研究,E-mail:yanxiaosheng@126. com;李岳(1996—),男,硕士研究生,从事风力机载荷研究,E-mail:upliyue@hotmail.com;高晓霞(1985—),女,博士,副教授,硕士生导师,从事风力机特性和机组的优化研究,E-mail:okspringgao@hotmail.com;王喜(1987—),男,从事风力发电研究工作,E-mail:15803335012@163.com
  • 基金资助:
    国家自然科学基金青年基金资助项目(水平轴风力发电机单风机及风场三维尾流特性理论及实验研究,51606068);河北省自然科学基金资助项目(地形/尾流耦合作用下风电场协同控制策略研究, E2019502072);中央高校基本科研业务费资助项目(地形/尾流耦合作用下风场内部流动机理研究,2020MS107)。

Experimental Study on Wind Acceleration Effect in Wind Farms with Complex Terrain

YAN Xiaosheng1, LI Yue2, GAO Xiaoxia2, WANG Xi3   

  1. 1. Fujian Wind Power Co., Ltd., China Guodian Corporation, Fuzhou 350800, China;
    2. School of Energy Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China;
    3. Hebei Longyuan Wind Power Co., Ltd., Zhangjiakou 075000, China
  • Received:2020-11-13 Revised:2021-10-29 Online:2022-03-28 Published:2022-03-29
  • Supported by:
    This work is supported by National Natural Youth Science Foundation of China (Theoretical and Experimental Studies on the 3D Single and Wind Farm Wake Characteristics for Horizontal Wind Turbine, No.51606068), Natural Science Foundation of Hebei Province (Study on Collaborative Control Strategy of Wind Farm Under the Coupling Action of Terrain and Wake , No.E2019502072), and Fundamental Research Fund for the Central Universities (Study on the Internal Flow Mechanism of Wind Farm Under the Coupling Action of Terrain and Wake, No.2020MS107).

摘要: 坡地的存在使得平地来流经过一定高度差后速度增大,产生了风加速效应。通过在某山地风场进行风场实验,获得坡地风场的流场数据,研究了坡地地形对风加速效应的影响。结果表明:加速效应与坡地海拔高度有关,实验中高海拔处实测加速比仅为Taylor原始算法预测加速比的16.9%左右。坡度大小和风向是另外2个影响加速效应的因素。通常坡度越大,加速效应越明显,实验中较大坡度处的加速比偏大61.6%左右;侧风坡面的加速比较迎风坡面偏大10%左右。此外,分析Taylor原始算法产生误差的原因,给出适用复杂地形的Taylor方法修正式。

关键词: 坡地加速效应, 风电场实验, 复杂地形, 来流条件, Taylor算法

Abstract: Sloping land makes the speed of the inflow on the flat land increase after a certain height difference, which results in the wind acceleration effect. Experiments were conducted in a mountain wind farm to obtain the flow field data of the slope wind field and study the influence of slope terrain on the wind acceleration effect. Experimental results show that the acceleration effect is related to the altitude of the slope, and the measured acceleration ratio at high altitudes is only about 16.9% of that predicted by Taylor’s original algorithm. Moreover, both the slope and the wind direction are also factors affecting the acceleration effect. Generally, the acceleration effect becomes more prominent when the slope is greater. In this experiment, the acceleration ratio in the positions with a larger slope is increased by 61.6%, and the acceleration ratio on the crosswind side of the slope is about 10% larger than that on the windward side. Meanwhile, the reasons for errors generated by Taylor’s original algorithm are analyzed, and the modified formula of Taylor’s method suitable for complex terrain is proposed in this paper.

Key words: acceleration effect of sloping land, wind farm experiment, complex terrain, inflow conditions, Taylor algorithm