组件倾角对平单轴跟踪支架气动稳定性的影响

温青; 徐慧; 武谦; 左太辉; 华旭刚

doi:doi:10.19912/j.0254-0096.tynxb.2024-2095

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组件倾角对平单轴跟踪支架气动稳定性的影响

更新时间：2026-07-22

- 组件倾角对平单轴跟踪支架气动稳定性的影响
- Vol. 47, Issue 4, Pages: 614-621(2026)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：doi:10.19912/j.0254-0096.tynxb.2024-2095
  CLC： TM615
- Online First：08 May 2026，
  
  Published：2026
- 稿件说明：
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温青, 徐慧, 武谦, et al. 组件倾角对平单轴跟踪支架气动稳定性的影响[J]. 2026, 47(4): 614-621.
DOI：

温青, 徐慧, 武谦, et al. 组件倾角对平单轴跟踪支架气动稳定性的影响[J]. 2026, 47(4): 614-621. DOI： doi:10.19912/j.0254-0096.tynxb.2024-2095.

摘要

针对大风作用下跟踪式光伏支架气动失稳问题

开发了节段模型大振幅纯扭转振动风洞试验系统

精细开展了-60°~60°组件倾角范围内跟踪式光伏支架气动稳定性节段模型风洞试验

得到组件倾角对跟踪式支架风致振动的影响规律。研究结果表明：跟踪式光伏支架气动稳定性与组件倾角密切相关

均匀流场中

结构阻尼比为3.9%时

组件安装倾角在-39°~40°范围内

支架会发生气动失稳

无量纲临界风速（Ur=U/fB）在3.1~5.3之间

气动失稳临界风速与组件倾角的关系曲线呈W型;在静风荷载作用下组件将产生静风扭转位移

考虑静风扭转位移的影响

支架气动失稳时的组件实际倾角范围为-43°~46°;气动失稳发生后

支架扭转振动的平衡点为考虑静风荷载作用下的组件实际倾角

扭转振幅随着风速的增大而快速增大

最大扭转振幅可达到90°

再现了实际工程中平单轴跟踪支架大幅气动失稳现象。

Abstract

Aiming at the problem of aerodynamic instability of PV tracker bracket under strong wind

a wind tunnel test system for large amplitude pure torsional vibration section model was developed. The wind tunnel test of the aerodynamic stability of the PV tracker bracket section model in the range of -60°-60° module tilt angle was carried out

and the influence of module tilt angles on windinduced vibration of tracker bracket was obtained. The results show that the aerodynamic stability of the PV tracker bracket is closely related to the tilt angle of the module. In the uniform flow field

when the structural damping ratio is about 3.9% and the installation tilt angle of the module is in the range of -39°-40°

the bracket will undergo aerodynamic instability. The dimensionless critical wind speed （=/） is between 3.1-5.3

and the relationship curve between the critical wind speed of aerodynamic instability and the tilt angle of the module is W-shaped. Under the action of static wind load

the module will produce static wind torsional displacement. Considering the influence of static wind torsional displacement

the actual tilt angle of the module during the aerodynamic instability of the bracket is -43°-46°. After the occurrence of aerodynamic instability

the equilibrium point of the torsional vibration of the bracket is the actual tilt angle of the module under the action of static wind load. The torsional amplitude increases rapidly with the increase of wind speed

and the maximum torsional amplitude can reach 90°

which reproduces the large-scale aerodynamic instability of the real flat single-axis tracker bracket in practical engineering.

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