Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (6): 42-45.doi: 10.3969/j.issn.1000-565X.2010.06.008

• Electronics, Communication & Automation Technology • Previous Articles     Next Articles

Determination of Series Resistance of Solar Cells Using Lambert W-Function

Xu Jia-xiong  Yao Ruo-he  Geng Kui-wei   

  1. School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2009-09-27 Revised:2009-12-07 Online:2010-06-25 Published:2010-06-25
  • Contact: 姚若河（1961-），男，教授，博士生导师，主要从事集成电路和光电器件研究．E—mail：phrhyao@scut．edu．cn E-mail:xu．jiaxiong@mail．scut．edu．cn
  • About author:许佳雄（1984-），男，博士生，主要从事硅基太阳能电池研究．
  • Supported by:

    国家自然科学基金资助项目（60776020）; 广东省科技攻关项目（A1100501）

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Abstract:

In order to accurately calculate the series resistance of solar cells,an analytical expression of the series resistance is derived from the current-voltage characteristic equations of the single diode model of solar cells.The expression is in the form of Lambert W-function.By substituting the current-voltage characteristic curve and other model parameters into the expression,the series resistance can be accurately evaluated,thus avoiding the errors introduced by the commonly-used approximate methods.The accuracy and applicability of the proposed expression is validated by its applications to different solar cells in various working conditions.

Key words: solar cells, series resistance, Lambert W-function, current voltage characteristics