以柔性光伏支架结构为研究对象,基于气弹模型风洞试验,考虑风速、安装位置、风向角等参数的影响,研究柔性光伏支架阵列风致响应和稳定索对光伏支架的抑振效果。结果表明：柔性光伏阵列各排组件存在明显的干扰效应,来流方向第2、3排光伏组件在低风速（8~15 m/s）下极易发生尾流致振;光伏组件在风速较大时易发生颤振;0°、135°和180°风向角下,阵列迎风侧第1排首先出现颤振,颤振临界风速分别为18.0、22.5和16.2 m/s,随着风速的增大,结构颤振有向背风侧延伸的趋势,说明组件间的遮挡能提高结构的颤振临界风速。增加稳定索措施后结构整体性加强,可有效抑制光伏组件的尾流致振和颤振。
Abstract
Based on the aerodynamic model wind tunnel test, the wind-induced response of the flexible photovoltaic（PV） support array and the vibration suppression effect of the stability cable on the photovoltaic module were studied, considering the influence of wind speed, installation position and wind direction. The results show that there are obvious interference effects between each row of the flexible PV support array. The second and third rows of PV modules on the windward side are prone to wake-induced vibration at low wind speed （8-15 m/s）. And this kind of structure is prone to flutter when the wind speed is high. Flutter first occurred in the first row on the windward side of the PV support array, and the flutter critical wind speeds were respectively 18.0, 22.5 and 16.2 m/s at wind directions of 0°, 135° and 180°. With the increase of wind speed, flutter tended to extend to the leeward side. It is indicated that shielding between modules could improve the flutter critical wind speed of the structure. After adding stability cable, the structural integrity can be strengthened, which can effectively suppress the wake-induced vibration and flutter of PV modules.
关键词
光伏组件 /
颤振 /
振动控制 /
风洞试验 /
风致振动 /
干扰效应
Key words
photovoltaic modules /
flutter /
vibration control /
wind tunnel /
wind-induced vibration /
interference effect
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参考文献
[1] 陈政清. 桥梁风工程[M]. 北京: 人民交通出版社, 2005.
CHEN Z Q.Bridge wind engineering[M]. Beijing: China Communications Press, 2005.
[2] 楼文娟, 单弘扬, 杨臻, 等. 超大型阵列光伏板体型系数遮挡效应研究[J]. 建筑结构学报, 2021, 42(5): 47-54.
LOU W J, SHAN H Y, YANG Z, et al.Study of shielding effect on shape coefficient of super-large photovoltaic arrays[J]. Journal of building structures, 2021, 42(5): 47-54.
[3] 李正农, 胡存云, 吴红华, 等. 基于超级计算的大规模跟踪式光伏发电阵列风压分布研究[J]. 太阳能学报, 2023, 44(6): 242-251.
LI Z N, HU C Y, WU H H, et al.Research on wind pressure distribution of large-scale tracking photovoltaic power generation array based on supercomputing[J]. Acta energiae solaris sinica, 2023, 44(6): 242-251.
[4] 马文勇, 柴晓兵, 马成成. 柔性支撑光伏组件风荷载影响因素试验研究[J]. 太阳能学报, 2021, 42(11): 10-18.
MA W Y, CHAI X B, MA C C.Experimental study on wind load influencing factors of flexible support photovoltaic modules[J]. Acta energiae solaris sinica, 2021, 42(11): 10-18.
[5] 陈权, 牛华伟, 李红星, 等. 基于气弹模型风洞试验的柔性光伏支架气动稳定性及干扰效应研究[J]. 建筑结构学报, 2023, 44(11): 153-161.
CHEN Q, NIU H W, LI H X, et al.Aerodynamic stability and interference effect on a flexible photovoltaic based on wind tunnel test with aeroelastic model[J]. Journal of building structures, 2023, 44(11): 153-161.
[6] 李寿英, 马杰, 刘佳琪, 等. 柔性光伏系统颤振性能的节段模型试验研究[J]. 土木工程学报, 2024, 57(2): 25-34.
LI S Y, MA J, LIU J Q, et al.Experimental study for flutter performance of flexible photovoltaic system by segmental model test[J]. China civil engineering journal, 2024, 57(2): 25-34.
[7] KOPP G A, FARQUHAR S, MORRISON M J.Aerodynamic mechanisms for wind loads on tilted, roof-mounted, solar arrays[J]. Journal of wind engineering and industrial aerodynamics, 2012, 111: 40-52.
[8] HE X H, DING H, JING H Q, et al.Wind-induced vibration and its suppression of photovoltaic modules supported by suspension cables[J]. Journal of wind engineering and industrial aerodynamics, 2020, 206: 104275.
[9] LIU J Q, LI S Y, LUO J, et al.Experimental study on critical wind velocity of a 33-meter-span flexible photovoltaic support structure and its mitigation[J]. Journal of wind engineering and industrial aerodynamics, 2023, 236: 105355.
[10] 马文勇, 马成成, 王彩玉, 等. 光伏阵列风荷载干扰效应风洞试验研究[J]. 实验流体力学, 2021, 35(4): 19-25.
MA W Y, MA C C, WANG C Y, et al.Wind tunnel experimental study on the wind load interference effect of solar panel arrays[J]. Journal of experiments in fluid mechanics, 2021, 35(4): 19-25.
[11] 郭涛, 杨渊茗, 黄国强, 等. 山区峡谷地形下柔性支撑光伏阵列的风振特性研究[J]. 太阳能学报, 2023, 44(11): 131-140.
GUO T, YANG Y M, HUANG G Q, et al.Wind-induced vibration analysis of flexible photovoltaic support structure under mountain canyon terrain[J]. Acta energiae solaris sinica, 2023, 44(11): 131-140.
[12] 阮辉, 廖伟丽, 王康生, 等. 光伏阵列表面风荷载数值研究[J]. 太阳能学报, 2015, 36(4): 871-877.
RUAN H, LIAO W L, WANG K S, et al.Numerical research on surface wind load of PV array[J]. Acta energiae solaris sinica, 2015, 36(4): 871-877.
[13] JUBAYER C M, HANGAN H.A numerical approach to the investigation of wind loading on an array of ground mounted solar photovoltaic (PV) panels[J]. Journal of wind engineering and industrial aerodynamics, 2016, 153: 60-70.
[14] 柴晓兵. 柔性太阳能光伏支架风荷载取值研究[D]. 石家庄: 石家庄铁道大学, 2020.
CHAI X B.Research on wind loads on flexible solar photovoltaic support system[D]. Shijiazhuang: Shijiazhuang Tiedao University, 2020.
[15] 李晓娜. 太阳能光伏支架风荷载体型系数研究[D]. 石家庄: 石家庄铁道大学, 2015.
LI X N.Study on wind load of solar photovoltaic bracket[D]. Shijiazhuang: Shijiazhuang Tiedao University, 2015.
[16] 高亮, 窦珍珍, 白桦, 等. 光伏组件风荷载影响因素分析[J]. 太阳能学报, 2016, 37(8): 1931-1937.
GAO L, DOU Z Z, BAI H, et al.Analysis of influence factors for wind lode of PV module[J]. Acta energiae solaris sinica, 2016, 37(8): 1931-1937.
[17] 马文勇, 孙高健, 刘小兵, 等. 太阳能光伏板风荷载分布模型试验研究[J]. 振动与冲击, 2017, 36(7): 8-13.
MA W Y, SUN G J, LIU X B, et al.Tests for wind load distribution model of solar panels[J]. Journal of vibration and shock, 2017, 36(7): 8-13.
[18] 李寿英, 李啸宇, 邓羊晨, 等. 基于三维气弹模型的悬索桥2类吊索尾流致振及其控制措施研究[J]. 中国公路学报, 2024, 37(2): 147-156.
LI S Y, LI X Y, DENG Y C, et al.Wake-induced vibration of two types of hangers of suspension bridge based on three dimensional aeroelastic test model and lts mitigation[J]. China journal of highway and transport, 2024, 37(2): 147-156.
[19] 蔡元, 邓华, 李本悦. 悬索光伏支架结构抗风设计方法初探[J]. 振动与冲击, 2022, 41(21): 69-77.
CAI Y, DENG H, LI B Y.Wind-resistant design method of cable-suspended photovoltaic module support structures[J]. Journal of vibration and shock, 2022, 41(21): 69-77.
基金
国家自然科学基金面上项目（52378508; 51578234）
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