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논문 기본 정보

자료유형
학술저널
저자정보
Kim, Joon-Yong (Dept. of Biosystems Engineering, Seoul National University) Yang, Seung-Hwan (Center for Safety Measurement, Korea Research Institute of Standards and Science) Lee, Chun-Gu (Dept. of Biosystems Engineering, Seoul National University) Kim, Young-Joo (Environmentally Materials & Components Center, Korea Institute of Industrial Technology) Kim, Hak-Jin (Dept. of Biosystems Engineering, Seoul National University) Cho, Seong-In (Dept. of Biosystems Engineering, Seoul National University) Rhee, Joong-Yong (Dept. of Biosystems Engineering, Seoul National University)
저널정보
한국농업기계학회 바이오시스템공학(구 한국농업기계학회지) 바이오시스템공학 제37권 제1호
발행연도
2012.1
수록면
11 - 18 (8page)

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Purpose: Short-circuit current of a solar module that is widely used as a power source for wireless environmental sensors is proportional to solar radiation although there are a lot of factors affecting the short-circuit current. The objective of this study is to develop a model for estimating solar radiation for using the solar module as a power source and an irradiance sensor. Methods: An experiment system collected data on the short-circuit current and environmental factors (ambient temperature, cloud cover and solar radiation) during 65 days. Based on these data, two linear regression models and a non-linear regression model were developed and evaluated. Results: The best model was a linear regression model with short-circuit current, angle of incidence and cloud cover and its overall RMSE(Root Means Square Error) was 66.671 $W/m^2$. The other linear model (RMSE 69.038 $W/m^2$) was also acceptable when the cloud cover data is not available.

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