Solar greenhouse innovative structure

• Main Authors: Zhang, Yong, Xu, Zhongyan, Ma, Lei
• Format: Conference Proceeding
• Language: English
• Subjects: Crops; Digitization; Greenhouses; Lighting; Luminous intensity; Modernization; Modules; Photovoltaic cells; Structural design
• ISSN: 0094-243X; 1551-7616
• DOI: 10.1063/5.0055427

In order to solve the challenge of the mutual influence of photovoltaic modules and crops growth in photovoltaic greenhouses, this study proposes an innovative structure of solar greenhouses to replace traditional solar greenhouses and realize the combination of photovoltaics and agricultural facilities. Firstly, based on the coupling relationship between photovoltaic power generation and internal plant growth in the greenhouse, three different photovoltaic panel covering structures are designed. Through simulation, we evidenced that the shading effect of photovoltaic modules for crops in the greenhouse can be almost unchanged (less than 2.5% increase) when the cross-sectional area of photovoltaic modules is increased by 10% to 34%. Secondly, active tilting lighting roof could be adopted to improve light intensity transmittance of solar greenhouse, ensuring the survival of plants and lighting performance. Finally, with an adapted greenhouse electrical system, the loads in the greenhouse can be powered by the photovoltaic modules, which improves the modernization and digitalization capabilities of the greenhouse. The above-mentioned innovative structural design can effectively use land, space and sunlight in a three-dimensional manner, and obtain dual benefits from agriculture and generation of electrical energy, which has guiding significance for practical applications.