水面光伏超大跨支架结构设计及技术应用分析

近年来,随着全球能源短缺和环境恶化加剧,发展新能源成为国家能源结构改革重要内容。作为一种清洁可靠的新能源,太阳能电站的建设和运营备受关注。该文以国内某坑塘水面光伏电站为背景,重点分析一种光伏电站柔性支架的结构方案、建模设计方法、结构构件选型及成本组成等内容,结果显示该种柔性支架结构方案可以实现东西方向和南北方向大跨距要求,尤其是东西方向跨距超过40 m;支架结构主要包括承重钢索结构、中梁结构、边梁结构、斜拉锚杆结构、三角撑杆和基础结构等;结构截面选型能够满足结构强度、刚度、稳定性的要求;而且,对于平坦地貌大连片应用场景,综合考虑所有土建成本,柔性支架光伏电站经济性略高于固定支架;进一步考虑柔性支架土地利用效率和土地复合利用价值等附加价值,柔性支架光伏电站经济性将显著高于固定支架。

In recent years,with the global energy shortage and environmental deterioration,the development of new energy has become an important part of the national energy structure reform.As a clean and reliable new energy,the construction and operation of solar power stations have attracted much attention.Based on the background of a domestic Kengtang surface photovoltaic power station,this paper focuses on the structural scheme,modeling and design method,structural component selection and cost composition of a flexible support for photovoltaic power station.The results show that the flexible support structure scheme can meet the requirements of long span in east-west direction and north-south direction,especially the span in east-west direction is more than 40 m.The support structure mainly includes load-bearing cable structure,middle beam structure,side beam structure,cable-stayed anchorage structure,triangular brace,foundation structure,etc;the selection of structural section can meet the requirements of structural strength,stiffness and stability;moreover,for large-scale application scenarios with flat landform,considering all the civil construction costs,the economy of flexible support photovoltaic power station is slightly higher than that of fixed support.This paper will further consider the additional values such as land use efficiency and land compound use value of flexible support,the economy of flexible support photovoltaic power station will be significantly higher than that of fixed support.