The solar cell modeling using Lambert W-function

Lambert W 함수를 이용한 태양전지 모델링

  • Bae, Jong-Guk (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Kang, Gi-Hwan (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Kim, Kyung-Soo (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Yu, Gwon-Jong (Photovoltaic Research Group, Korea Institute of Energy Research) ;
  • Ahn, Hyung-Geun (Dept. of Electrical Engineering, Konkuk University) ;
  • Han, Deuk-Young (Dept. of Electrical Engineering, Konkuk University)
  • 배종국 (한국에너지기술연구원) ;
  • 강기환 (한국에너지기술연구원) ;
  • 김경수 (한국에너지기술연구원) ;
  • 유권종 (한국에너지기술연구원) ;
  • 안형근 (건국 대학교 대학원 전기공학과) ;
  • 한득영 (건국 대학교 대학원 전기공학과)
  • Published : 2011.11.24

Abstract

This system can predict the maximum output about all illumination levels so that the PV system designer can design the system having the best efficiency. For the output prediction exact about the solar cell, that is the device the basis most in the PV system, the basis has to be in order to try this way. The solution based on Lambert W-function are presented to express the transcendental current-voltage characteristic containing parasitic power consuming parameters like series and shunt resistances. A simple and efficient method for the extraction of a single current-voltage (I-V) curve under the constant illumination level is proposed. With the help of the Lambert W function, the explicit analytic expression for I is obtained. And the explicit analytic expression for V is obtained. This analytic expression is directly used to fit the experimental data and extract the device parameters. The I-V curve of the solar cell was expressed through the modeling using Lambert W-function and the numerical formula where there is the difficulty could be logarithmically expressed This method expresses with the I-V curve through the modeling using Lambert W-function which adds other loss ingredients to the equation2 as to the research afterward. And the solar cell goes as small and this I-V curve can predict the power penalty in the system unit.

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