Aerodynamic stability and interference effect on a flexible photovoltaic based on wind tunnel test with aeroelastic model

被引：0
作者：
Chen Q. [1 ]
Niu H. [1 ]
Li H. [2 ]
Jiang D. [2 ]
机构：
[1] College of Civil Engineering, Hunan University, Changsha
[2] Northwest Electric Power Design Institute Co.‚ Ltd., China Power Engineering Consulting Group, Xi’an
来源：
Jianzhu Jiegou Xuebao/Journal of Building Structures | 2023年 / 44卷 / 11期
关键词：
aerodynamic stability; flexible photovoltaic; shadowing; twisting vibration; wake induced vibration; wind tunnel test;
D O I：
10.14006/j.jzjgxb.2022.0891
中图分类号：
学科分类号：
摘要：
In order to foster a better understanding of the aerodynamic stability of flexible photovoltaic and the aeroelastic interference effect of flexible photovoltaic array‚ the aerodynamic stability of single flexible photovoltaic in different inclination angles‚ wind directions and uniform turbulent wind fields was studied by wind tunnel tests with an aeroelastic model that can adjust angles. Furthermore‚ by changing the wind direction‚ the number of flexible photovoltaic and the connector conditions between flexible photovoltaics (with or without connection)‚ the interference effect of flexible photovoltaic under 10° was studied. The results show that the flutter stability of 10° inclination angle is the worst; 0°‚ 15° and 30° wind direction leads to poorer performance on flutter stability. Turbulence can inhibit flutter but increase the buffeting response of flexible photovoltaic. Under the condition of 10° inclination angle and 0° wind direction‚ when turbulence increased from less than 0. 5% to 5. 0% ‚ 10. 0% and 15. 0% ‚ the flutter critical wind speed is increased by 2. 92% ‚ 6. 10% and 28. 38% ‚ respectively‚ and the acceleration buffeting response of flexible photovoltaic is 1. 78‚ 4. 56 and 6. 12 times of uniform flow field. In the case of array‚ the second row in the direction of incoming flow is most affected by wake‚ which gradually weakens with the increase of distance‚ and the affected area is roughly within the range of 10 to 15 m. According to the wind-vibration response of the array‚ the array is divided into wake zone‚ transition zone and shielding zone. The installation of connectors between the flexible photovoltaic array will weaken the structural vibration response in the wake zone and the shield zone of the array (the standard deviation of the structure acceleration is reduced by 56. 38% at most)‚ but it is unfavorable to the structure in the transition zone (the standard deviation of the structure acceleration is increases by 24. 43%). © 2023 Science Press. All rights reserved.
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页码：153 / 161
页数：8
相关论文
共 17 条
  • [1] ALY A, M ', BITSUAMLAK G., Aerodynamics of ground-mounted solar panels: test model scale effects [J], Journal of Wind Engineering and Industrial Aerodynamics‚, 123, pp. 250-260, (2013)
  • [2] JUBAYER C M', HANGAN H., Numerical simulation of wind effects on a stand-alone ground mounted photovoltaic (PV) system [J], Journal of Wind Engineering and Industrial Aerodynamics‚, 134, pp. 56-64, (2014)
  • [3] 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‚, 153, pp. 60-70, (2016)
  • [4] SIDDIQUI K., Experimental investigation of wind effects on a standalone photovoltaic (PV) module [J], Renewable Energy‚, 78, pp. 657-665, (2015)
  • [5] LOU Wenjuan', SHAN Hongyang', YANG Zhen', Et al., Study of shielding effect on shape coefficient of super-large photovoltaic arrays [J], Journal of Building Structures, 42, 5, pp. 47-54
  • [6] SUN Gaojian', LIU Xiaobing', Et al., Tests for wind load distribution model of solar panels [J], Journal of Vibration and Shock‚, 36, 7, pp. 8-13, (2017)
  • [7] WANG Caiyu', Et al., Wind tunnel experimental study on the wind load interference effect of solar panel arrays [J], Journal of Experiments in Fluid Mechanics, 35, 4, pp. 19-25
  • [8] HUANG Bocheng', MA Wenyong, Study on the effectof sheelding tandem photovoltaic panels shape coeffcient, 椅 Proceedings of the 25th National Conference on Structural Engineering, pp. 326-329, (2016)
  • [9] LI Xiaona, Study on wind load of solar photovoltaic bracket, pp. 9-27, (2015)
  • [10] HAN Xiaole, Study on wind load of solar photovoltaic array, pp. 14-32, (2016)
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