영농형 태양광 발전 솔라쉐어링에 따른 하부 일사량 변화의 해석 및 분석
Simulation and Analysis of Solar Radiation Change Resulted from Solar-sharing for Agricultural Solar Photovoltaic System
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초록
Solar-sharing, which is an agricultural photovoltaic system installing solar panels on the upper part of crop growing field, has especially drawn attention. Because paddy fields for cultivating crops are large flat areas, there have been various attempts to utilize solar energy for solar photovoltaic as wellas growth of crops in agriculture. Solar-sharing was first proposed in Japan, and has been actively studied for optimization and practical uses. Thedomestic climate differs from the climate conditions in which the solar-sharing has been widely studied, therefore, it is required to develop thesolar-sharing technology suitable for the domestic climate. In this study, a simulation model was developed to analyze the change of solar radiationresulted from the solar-sharing installation. Monthly solar illumination intensity and the change of illumination intensity according to the variousconditions of solar panel installation were simulated. The results of monthly illumination analysis differed by altitude of the sun, which was relatedto season. In addition, it was analyzed that the monthly illumination decreased by up to 42% due to solar-sharing. Accordingly, it is recommendedthat solar-sharing should be installed as a way to maximize the efficiency of solar photovoltaic system while minimizing the decrease in solar radiationreaching the crops.
Abstract
Solar-sharing, which is an agricultural photovoltaic system installing solar panels on the upper part of crop growing field, has especially drawn attention. Because paddy fields for cultivating crops are large flat areas, there have been various attempts to utilize solar energy for solar photovoltaic as wellas growth of crops in agriculture. Solar-sharing was first proposed in Japan, and has been actively studied for optimization and practical uses. Thedomestic climate differs from the climate conditions in which the solar-sharing has been widely studied, therefore, it is required to develop thesolar-sharing technology suitable for the domestic climate. In this study, a simulation model was developed to analyze the change of solar radiationresulted from the solar-sharing installation. Monthly solar illumination intensity and the change of illumination intensity according to the variousconditions of solar panel installation were simulated. The results of monthly illumination analysis differed by altitude of the sun, which was relatedto season. In addition, it was analyzed that the monthly illumination decreased by up to 42% due to solar-sharing. Accordingly, it is recommendedthat solar-sharing should be installed as a way to maximize the efficiency of solar photovoltaic system while minimizing the decrease in solar radiationreaching the crops.
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