Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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A Research on the Decomposition Model and Transposition Model Using the Measured Pyranometer Irradiation Data

피라노미터 실측 일조량을 통한 직산 분리 모델과 경사면 일조량 변환 모델에 관한 연구

  • Lee, Sang-Hyuk (Department of Energy & Electrical Engineering, Korea Polytechnic University) ;
  • Lee, Kyung-Soo (Department of Energy & Electrical Engineering, Korea Polytechnic University)
  • 이상혁 (한국산업기술대학교 에너지.전기공학과) ;
  • 이경수 (한국산업기술대학교 에너지.전기공학과)
  • Received : 2018.01.18
  • Accepted : 2018.06.14
  • Published : 2018.06.30
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Abstract

It is a very important and fundamental process to know accurately the intensity of the solar energy coming into the installed module considering the tilted angle. Europe and the US commonly use a program called PVsyst to convert the global horizontal irradiation to global irradiation on tilted plane. There are two types of models that PVsyst uses to convert to irradiation on tilted plane. In this paper, Perez model, which is a decomposition model and Perez model, which is a transposition model used in PVsyst, are applied based on global horizontal irradiation and global irradiation on tilted plane measured in a specific area. The comparison of the decomposition model shows the effect of the transpostion model on global irradiation on tilted plane conversion by comparing the ratio of the horizontal diffuse irradiation amount of the Watanabe model which are highly trusted in Asia and the Perez model. The comparison of transposition model confirm the error between the measured data and the calculated value which is applied Perez model to global horizontal irradiation decomposed by Perez model and Watanabe model. Based on the two comparisons, This paper propose a method to confirm the reliability of transposition model and reduce the error when PVsyst is used in Korea.

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References

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