太阳跟踪器电动推杆俯仰机构的参数优化

陈元涛; 李鹏; 张顺翔; 杨裕锦; 祝璇

doi:10.13433/j.cnki.1003-8728.20220006

太阳跟踪器电动推杆俯仰机构的参数优化

doi: 10.13433/j.cnki.1003-8728.20220006

陈元涛^1,,
李鹏^{1, 2, ,},
张顺翔¹,
杨裕锦¹,
祝璇¹

1.
武汉理工大学机电工程学院, 武汉 430070
2.
先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室), 广东佛山 528200

基金项目:

先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室)开放基金项目 XHD2020-001

详细信息

作者简介:
陈元涛(1995-), 硕士, 研究方向为新能源技术, cyt1654400138@163.com

通讯作者:
李鹏, 教授, 博士生导师, lp1968@whut.edu.cn

中图分类号: TK514;TP18
计量
- 文章访问数: 68
- HTML全文浏览量: 62
- PDF下载量: 14
- 被引次数: 0
出版历程
- 收稿日期: 2020-11-09
- 刊出日期: 2023-04-25

Parametrically Optimizing Pitching Mechanism of Electric Linear Actuator of Solar Tracker

1.
School of Mechanical and Electrical Engineering, Wuhan University of Technology, Wuhan 430070, China
2.
Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528200, Guangdong, China

摘要

摘要: 与固定式安装太阳电池板比较，采用太阳能跟踪系统可使其发电量提高25%~40%。本文根据太阳跟踪器俯仰机构几何关系，建立了完整太阳跟踪过程中电动推杆承受载荷最小的优化设计模型，通过编写MATLAB程序，对俯仰机构的布局参数和机构尺寸进行了优化。算例结果表明，优化的俯仰机构增大了最小传动角，提高了机构的传动性能，降低了电动推杆的载荷，保证了机构性能和可靠性。
- 太阳跟踪器 /
- 俯仰机构 /
- 电动推杆 /
- 参数优化
Abstract: Compared with a stationary solar panel, a solar tracking system can increase the power generation by 25%~40%. Based on the geometric relationship of pitching mechanisms of a solar tracker, the paper establishes the optimal model of minimum load on an electric linear actuator during its complete solar tracking process. The MATLAB program is used to optimize the process parameters and sizes of the pitching mechanism. The results on numerical examples show that the optimized pitching mechanism increases its minimum transmission angle, improves its transmission performance, reduces the load of the electric pusher and ensures its performance and safety.
- solar tracker /
- pitching mechanism /
- electric linear actuator /
- parametric optimization

HTML全文

图 1 电动推杆俯仰机构示意图

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图 2 跟踪器俯仰机构风载荷示意图

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图 3 太阳跟踪器电动推杆俯仰机构受力分析简图

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图 4 θ=10°时各风载荷系数随风向角δ变化

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图 5 太阳跟踪器俯仰机构电动推杆行程约束示意图

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图 6 太阳跟踪器电动推杆俯仰机构参数优化流程图

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图 7 优化前后电动推杆俯仰机构传动角曲线

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图 8 优化前后电动推杆行程变化曲线

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图 9 优化前后3种风载情况下电动推杆载荷曲线

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表 1 不同风向角下各项风载系数的正负取值表

状态	C_x	C_y	C_mz
风正向吹0≤\|δ\|≤90°	+	-	+
风反向吹90° < \|δ\|≤180°	-	+	-

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表 2 太阳跟踪器电动推杆俯仰机构设计参数

参数	数值	参数	数值
a	235 mm	b	78 mm
e	5 530 mm	H	1 200 mm
l	3 840 mm	mg	6 860 N
h	65 mm	m	85 mm
L₀	600 mm	F₀	12 000 N
k	0.785	ε	0.22
Z	12	η	0.95

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表 3 研究算例设计变量的优化前后对比

设计变量参数	优化前/mm	优化后/mm
x₁	50	200
y₁	50	200
x₂	450	465
y₂	120	150
n	220	249

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