原文信息：
Agricultural friendly single-axis dynamic agrivoltaics: simulations, experiments and a large-scale application for Chinese Solar Greenhouses
原文链接：
https://www.sciencedirect.com/science/article/abs/pii/S0306261924012741
Highlights
(1) Analyzing the spatial and temporal distribution patterns of light fields under agrivoltaics (APV).
(2) Applying phenotypic and canopy photosynthesis techniques to the study of plants under APV.
(3) Integrating dynamic photovoltaic strategies with crop stubble.
(4) A large-scale case comprising 60 photovoltaic greenhouses was completed.
Abstract
The concept of agrivoltaics (APV) has made progress in recent years but has not yet been widely promoted and applied on a larger scale. The main hindrance lies in the fact that the effects on crop cultivation have not been optimal. This study establishes two sets of single-axis dynamic tracking photovoltaic (PV) systems utilizing bifacial modules: Solar tracking (ST) employing the maximum power generation strategy, and Reverse tracking (RT) employing the minimum shadow area tracking strategy for ground-mounted tracking. In Xiongan (N39.02°, E116.11°), ST increases power generation by 3.9% compared to fixed-axis PV systems (Tilt=25°), while RT decreases power generation by 34.7%. The discrepancy in power generation between ST and RT is most noticeable on clear sky and partly cloudy days, with minimal difference on cloudy days. We investigate the impact of these systems on crop growth by analyzing changes in canopy area during the lettuce growing period and compare the net photosynthetic rates (Pn) of spring wheat (C3 crop) and millet (C4 crop) using canopy photosynthesis and transpiration measurement systems (CAPTS). The results indicate that lettuce shows a larger leaf area under ST throughout the growing period, millet exhibits a higher net photosynthetic rate under RT, while there is marginal difference in the Pn of spring wheat under both systems. This study integrates the above research configuration with Chinese Solar Greenhouses (CSGs) located in Yufa, Beijing. During the production season, the dynamic PV systems switch to the shadow-free mode to ensure the photosynthesis of crops within the CSGs. Conversely, during the idle season of the CSGs, the system shifts to ST mode to ensure PV power generation. By integrating power generation and planting data, the Land Equivalent Ratio (LER) can reach 1.46, with the Return on Investment (ROI) of 20% based on construction costs. Through experiments and practical case studies, it is evident that dynamic PV systems can be effectively integrated with CSGs, providing sufficient land and space for both PV power generation and crop cultivation.
Graphics
图1. 实验基地的示意图
图2. APV光场模拟流程及结果
图3. APV光场测量结果
图4. APV下作物表型分析
图5. APV下作物冠层光合作用分析
图6. 动态光伏与中国传统温室结合
团队介绍
本研究由中国科学技术大学、雄安创新研究院、中电投新农创科技有限公司以及以色列的研究人员共同完成。
第一作者简介：
张伟，毕业于中国科学院遗传与发育生物学研究所，现任雄安创新研究院助理研究员，从事农业光伏系统模拟及实验验证，农业光伏下植物表型及光合作用研究以及设施农业植物光配方等研究。
通信作者简介：
刘文，中国科学技术大学光学与光学工程系教授，教育部长江学者，安徽省光电子科学与技术重点实验室主任。主要从事光电子技术研究，曾担任863、973、科技部重点研发计划首席科学家。
张昕昱，中国科学技术大学光学与光学工程系副研究员。主要从事兼顾光合作用及光储直柔的光电农业技术研究。专注于植物光度学、半导体照明、光学传感及智能控制领域，面向能源农业、工厂化农业应用。曾获全国优秀创新创业博士后。以第一及通讯作者在Applied Energy等国际知名期刊发表论文12篇，授权专利27项。近三年主持国家自然科学基金青年项目、中国科大雄鹰基金等省部级以上项目10余项，成果荣获美国R&D100、国务院国资委双碳案例一等奖、全国博士后双创大赛优胜奖等荣誉。
关于Applied Energy
本期小编：李康；审核人：赵秉旭
《Applied Energy》是世界能源领域著名学术期刊，在全球出版巨头爱思唯尔 (Elsevier) 旗下，1975年创刊，影响因子10.1，CiteScore 21.2，本刊旨在为清洁能源转换技术、能源过程和系统优化、能源效率、智慧能源、环境污染物及温室气体减排、能源与其他学科交叉融合、以及能源可持续发展等领域提供交流分享和合作的平台。开源（Open Access）姊妹新刊《Advances in Applied Energy》影响因子13.0，CiteScore 23.9。全部论文可以免费下载。在《Applied Energy》的成功经验基础上，致力于发表应用能源领域顶尖科研成果，并为广大科研人员提供一个快速权威的学术交流和发表平台，欢迎关注！
公众号团队小编招募长期开放，欢迎发送自我简介（含教育背景、研究方向等内容）至wechat@applied-energy.org
点击“阅读原文”
喜欢我们的内容？
点个“赞”或者“再看”支持下吧！
