关键词: 农光互补, 光伏阵列, 滤光多层膜, PVsyst建模

Abstract: As a new energy application form that organically combines photovoltaic (PV) power generation and agricultural production, agro⁃photovoltaic integrating system has important ecological benefits and economic potential. However, suffering for the problem of photovoltaic modules and crop lighting distribution, it is difficult to apply it widely. In this regard, a new type of agro⁃photovoltaic system was designed. A multilayer film filter comprising of 11 layers of SiO2 film and 11 layers of TiO2 film was coated on the surface of photovoltaic modules to separate the red and blue light required for crop photosynthesis from solar spectrum. Through real⁃time adjustment of the inclination of the PV array, the reflected light kept illuminating the ground, while other wavelengths of light passed through the filter film and illuminated the solar cell, leading to generation of photovoltaic power. The PV modules arrangement and spacing of the PV array was designed, and the power generation of the PV array and the ground illumination between the arrays were calculated with PVsyst software modelling. The calculation results showed that although its power generation was lower than the conventional fixed inclination square array, the ground illumination between the arrays had increased by 27.26%, which helped to increase the yield of crops, thereby increasing the comprehensive benefits of the agro⁃photovoltaic projects.

Key words: agro?photovoltaic, PV array, multilayer film filter, PVsyst software modelling