湖泊光伏电站湍流特征及稳定度的对比分析  

Comparative Analysis of Turbulence Characteristics and Stability of Lake Photovoltaic Power Plant

作　　者：叶天歌 高晓清 李振朝 YE Tiange;GAO Xiaoqing;LI Zhenchao(Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions,Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences,Lanzhou 730000,Gansu,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院西北生态环境资源研究院/中国科学院寒旱区陆面过程与气候变化重点实验室,甘肃兰州730000 [2]中国科学院大学,北京100049

出　　处：《高原气象》2022年第4期1006-1016,共11页Plateau Meteorology

基　　金：国家科技研发计划项目(2018YFB1502800);国家自然科学基金面上项目(41875017)。

摘　　要：随着光伏电站的大规模建设,近地层的物理特性会随之改变,湍流活动作为地气之间相互作用的主要方式同样受到了其影响。湖泊光伏电站作为一种新的太阳能发电形式,在能源应用方面起到了至关重要的作用。为了了解湖泊光伏电站局地湍流的变化特征,利用2021年7月至2021年11月江苏省扬中市丰裕镇营房村湖泊光伏电站的观测数据,研究了其湍流特征及稳定度的变化规律,研究表明:光伏电站的架设增强了湍流强度,对于局地气流存在一定影响,并且表现为I_(v)>I_(u)>I_(w)。同时,光伏电站促进了湍流动能和摩擦速度的增强,对于局地动量和热量的输送显著增加,动量输送系数CD=13.36×10^(-3),感热输送系数C_(H)=6.01×10^(-3)。光伏电站上的近地层大气在白天不稳定性增强,而在夜间稳定性增强,对稳定度进行分类后发现,光伏电站上的近地层大气主要集中于中性和近中性层结,占比达75.11%。With the large-scale construction of photovoltaic power plants,the physical characteristics of the nearsurface layer change accordingly.The turbulence activity as the way of interaction between the earth and the atmosphere is also affected by it.As a new form of solar power generation,lake photovoltaic power plant plays a vital role in energy application.In order to understand the characteristics of local turbulence in lake photovoltaic power plants,the observed data of the photovoltaic power plant from July to November 2021 in Yingfang Village,Fengyu Town,Yangzhong City,Jiangsu Province,were used in this study to investigate the turbulence characteristics and the variation rules of stability.The results indicate that:the installation of photovoltaic power plant enhanced the turbulence intensity,and showed as I_(v)>I_(u)>I_(w),which had a certain influence on the local airflow.At the same time,the photovoltaic power plant promoted the enhancement of turbulent kinetic energy and friction velocity,and significantly increased the local momentum and heat transport.The momentum transport coefficient CD=13.36×10^(-3),and the sensible heat transport coefficient CH=6.01×10^(-3).The instability of nearground atmosphere on photovoltaic power plant was enhanced in the daytime,and conversely,it was enhanced stability at night.After the classification of stability,the near-ground atmosphere on photovoltaic power plant was mainly concentrated in neutral and near neutral,accounting for 75.11%.

关 键 词：光伏电站 湍流 总体输送系数 稳定度 

分 类 号：P404[天文地球—大气科学及气象学]