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http://dx.doi.org/10.5389/KSAE.2020.62.5.063

Simulation and Analysis of Solar Radiation Change Resulted from Solar-sharing for Agricultural Solar Photovoltaic System  

Lee, Sang-ik (Department of Rural Systems Engineering, Seoul National University)
Choi, Jin-yong (Department of Rural Systems Engineering, Research Institute of Agriculture and Life Sciences, Global Smart Farm Convergence Major, Seoul National University)
Sung, Seung-joon (Solar Development Part, SK D&D)
Lee, Seung-jae (National Center for Agro-Meteorology)
Lee, Jimin (Research Institute of Agriculture and Life Sciences, Seoul National University)
Choi, Won (Department of Rural Systems Engineering, Research Institute of Agriculture and Life Sciences, Global Smart Farm Convergence Major, Seoul National University)
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.62, no.5, 2020 , pp. 63-72 More about this Journal
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 well as growth of crops in agriculture. Solar-sharing was first proposed in Japan, and has been actively studied for optimization and practical uses. The domestic climate differs from the climate conditions in which the solar-sharing has been widely studied, therefore, it is required to develop the solar-sharing technology suitable for the domestic climate. In this study, a simulation model was developed to analyze the change of solar radiation resulted from the solar-sharing installation. Monthly solar illumination intensity and the change of illumination intensity according to the various conditions of solar panel installation were simulated. The results of monthly illumination analysis differed by altitude of the sun, which was related to season. In addition, it was analyzed that the monthly illumination decreased by up to 42% due to solar-sharing. Accordingly, it is recommended that solar-sharing should be installed as a way to maximize the efficiency of solar photovoltaic system while minimizing the decrease in solar radiation reaching the crops.
Keywords
Solar-sharing; solar radiation; illumination intensity; simulation model; solar photovoltaic;
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1 Mo, X., S. Liu, Z. Lin, Y. Xu, Y. Xiang, and T. R. McVicar, 2005. Prediction of crop yield, water consumption and water use efficiency with a SVAT-crop growth model using remotely sensed data on the North China Plain. Ecological Modelling 183(2-3): 301-322. doi: 10.1016/j.ecolmodel.2004.07.032.   DOI
2 Nagashima, A., 2015. Change Japan, Change the World! Advise of "Solar Sharing". Tokyo, Mass.: Rick.
3 Shim, J. S., and D. S. Song, 2016. Validity of the solar radiation decomposition model in domestic regions. Proceedings of Architectural Institute of Korea 36(2):567-568 (in Korean).
4 Shim, J. S., and D. S. Song, 2017. Applicability of the direct-diffuse insolation decomposition models considering the domestic sky conditions. In Proceedings of the SAREK 2017 Summer Annual, 763-766 (in Korean).
5 Vartiainen, E., 2000. A comparison of luminous efficacy models with illuminance and irradiance measurements. Renewable Energy 20(3): 265-277. doi:10.1016/S0960-1481(99)00115-9.   DOI
6 Watanabe, T., Y. Urano, and T. Hayashi, 1983. Procedures for separating direct and diffuse insolation on a horizontal surface and prediction of insolation on tilted surfaces. Transactions of the Architectural Institute of Japan 330:96-108. doi:10.3130/aijsaxx.330.0_96.   DOI
7 Yang, I. H., K. W. Kim, and M. H. Kim, 1991. A study on the luminous efficacy of solar radiation in Seoul area. Architectural Research 7(3): 261-268 (in Korean).
8 Trnka, M., J. Eitzinger, P. Kapler, M. Dubrovsky, D. Semeradova, Z. Zalud, and H. Formayer, 2007. Effect of estimated daily global solar radiation data on the results of crop growth models. Sensors 7(10): 2330-2362. doi: 10.3390/s7102330.   DOI
9 Yoon, C., S. Choi, K. N. An, J. H. Ryu, H. Jeong, and J. Cho, 2019. Preliminary experiment of the change of insolation under solar panel mimic shading net. Korean Journal of Agricultural and Forest Meteorology 21(4):358-365 (in Korean). doi:10.5532/KJAFM.2019.21.4.358.   DOI
10 Yoon, K. C., G. Yoon, and K. S. Kim, 2011. Comparison of measurement and calculation model of solar luminous efficacy for all sky conditions in Seoul. Journal of the Korean Solar Energy Society 31(6): 86-94 (in Korean). doi:10.7836/kses.2011.31.6.086.   DOI
11 Dupraz, C., H. Marrou, G. Talbot, L. Dufour, A. Nogier, and Y. Ferard, 2011. Combining solar photovoltaic panels and food crops for optimising land use: Towards new agrivoltaic schemes. Renewable Energy 36(10): 2725-2732. doi:10.1016/j.renene.2011.03.005.   DOI
12 Amir, J., and T. R. Sinclair, 1991. A model of the temperature and solar-radiation effects on spring wheat growth and yield. Field Crops Research 28(1-2): 47-58. doi: 10.1016/0378-4290(91)90073-5.   DOI
13 Batorova, S., 2015. Solar sharing in Japan: Opportunities and experiences. http://st.sustainability.k.u-tokyo.ac.jp. Accessed 15Mar. 2019.
14 Choi, D. J., 2009. Comparison researches for installation of the module angles and array spacing on photovoltaic power system. Journal of the Korean Institute of Illuminating and Electrical Installation Engineers 23(1): 162-168 (in Korean).   DOI
15 Je, S. M., S. G. Son, S. Y. Woo, K. O. Byun, and C. S. Kim, 2006. Photosynthesis and chlorophyll contents of Chloranthus glaber under different shading treatments. Korean Journal of Agricultural and Forest Meteorology 8(2): 54-60 (in Korean).
16 Falster, D. S., and M. Westoby, 2003. Leaf size and angle vary widely across species: What consequences for light interception?. New Phytologist 158(3): 509-525. doi:10.1046/j.1469-8137.2003.00765.x.   DOI
17 Hunt, L. A., L. Kuchar, and C. J. Swanton, 1998. Estimation of solar radiation for use in crop modelling. Agricultural and Forest Meteorology 91(3-4): 293-300. doi:10.1016/S0168-1923(98)00055-0.   DOI
18 Igawa, N., H. Nakamura, and K. Matsuura, 1999. Sky luminance distribution model for simulation of daylit environment. In Proceedings of Building Simulation 1999, 969-975, Kyoto, Japan.
19 Igawa, N., H. Nakamura, T. Matzusawa, Y. Koga, K. Goto, and S. Kojo, 1997. Sky luminance distribution between two CIE standard skies1. 2. In Proc. Lux Pacifica, E7-E18.
20 Janiak, T., 2017. Crops and solar farms - Solar sharing. https://tomaszjaniak.wordpress.com. Accessed 29Mar. 2019.
21 Lee, S. I., J. J. Lee, J. Y. Choi, W. Choi, and S. J. Seong, 2019. Agricultural solar photovoltaic power generation to share solar energy, solar-sharing. Magazine of the Korean Society of Agricultural Engineers 61(4): 2-11 (in Korean).
22 Lee, Y. G., S. Y. Kang, and K. H. Kim, 2003. A development of the solar position tracker on the program method for the small typed stand-alone PV system commercialization. The Transactions of Korean Institute of Power Electronics 8(3): 260-265 (in Korean).