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A double mathematical transformation is proposed in this work for the ease of solar modules parameter extraction. This transformation allows to define a distance between I–V measured data and the theoretical values corresponding to the one diode model of solar modules/cells, suitable for fitting measured curves with a low computational cost. Moreover, this transformation makes the iteration process inherent to one diode model theoretical points calculation to result always convergent. For validation of this method, a real laboratory circuit suited to the one diode model has been built, allowing the variation of series and shunt resistances, and a 25 I–V curves dataset has been created from 5 different values of series and shunt resistances.

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One Diode Model Intrinsic Parameter Extraction from Solar Module Dark I/V Curves with Low Computational Cost

  • 会议论文

  • 发表日期：

    2025年

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  • José Ignacio Morales Aragonés,
  • Luis Hernández-Callejo,
  • Víctor Alonso Gómez,
  • Alberto Redondo Plaza,
  • Vanessa de Almeida Guimaraes,
  • Santiago Araujo Rendón

摘要

A double mathematical transformation is proposed in this work for the ease of solar modules parameter extraction. This transformation allows to define a distance between I–V measured data and the theoretical values corresponding to the one diode model of solar modules/cells, suitable for fitting measured curves with a low computational cost. Moreover, this transformation makes the iteration process inherent to one diode model theoretical points calculation to result always convergent. For validation of this method, a real laboratory circuit suited to the one diode model has been built, allowing the variation of series and shunt resistances, and a 25 I–V curves dataset has been created from 5 different values of series and shunt resistances.