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In order to solve the problems that engineering model of photovoltaic array has low accuracy (within 5%) and five-parameter model has more parameters which are difficult to obtain, a new method of parameters extraction is presented in this paper. This method is first to use Lambert W function to obtain the analytic expression for photovoltaic module, then to use polynomial curve fitting method to obtain the current-voltage relationship of PV module, and finally to use the subsection integral method to obtain the value of parameters for photovoltaic module. The proposed method shows that the accuracy is within 0.5%. Compared with conductivity method and pattern search method, this method not only has intuitive features but also is easy to use. Furthermore, the obtained photovoltaic module parameters possess smaller errors (within 0.1%).
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Keywords:
- Lambert W function /
- curve-fitting /
- parameters extraction
[1] Peng L L, Sun Y Z, Meng C, Chen Y J 2011 J. Donghua University (Natural Science) 1 91 (in Chinese) [彭乐乐, 孙以泽, 孟婥, 陈玉洁 2011 东华大学学报(自然科学版) 1 91]
[2] Sun J H, Xun S J, Zhao W, Wu M D, Shen Y L, He R H 2001 Acta Energiae Solaris Sinica 22 4 (in Chinese) [苏建徽, 徐世杰, 赵为, 吴敏达, 沈玉梁, 何若慧 2001 太阳能学报 22 4]
[3] Peng L L, Sun Y Z, Lin X L, Meng C 2012 Acta Energiae Solaris Sinica 2 284 (in Chinese) [彭乐乐, 孙以泽, 林学龙, 孟婥 2012 太阳能学报 2 284]
[4] Chegaar M, Ouennoughi Z, Hoffmann A 2001 Solid-State Electronics 45 295
[5] De Soto W, Klein S A, Beckman W A 2006 Solar Energy 80 81
[6] Rosell J I, Ibanez M 2006 Energy Conversion and Management 47 2424
[7] Ortiz-Conde A, Sanchez F J G, Muci J 2006 Solar Energy Materials & Solar Cells 90 357
[8] Ye M, Wang X, Xu Y 2009 J. Appl. Phys. 9 94505
[9] Boyd M T, Klein S A, Reindl D T, Dougherty B P 2011 J. Solar Energy Engineering 133 10
[10] Li F G, Sun Y Z, Peng L L 2011 Renewable Energy 3 113 (in Chinese) [李富国, 孙以泽, 彭乐乐 2011 可再生能源 3 113]
[11] AlHajri M F, El-Naggar K M, AlRashidi M R, Al-Othman A K 2012 Renewable Energy 3
[12] Carrero C, Rodriguezb J, Ramirezb D, Platerob C 2009 Renewable Energy 5 1104
[13] Xu J X, Yao R H, Geng K W 2010 J. South China Univ. Tech. (Natural Science Edition) 6 43 (in Chinese) [许佳雄, 姚若河, 耿魁伟 2010 华南理工大学学报(自然科学版) 6 43]
[14] Jain A, Kapoor A 2004 Solar Energy Materials & Solar Cells 81 271
[15] Jain A, Kapoor A 2004 Solar Energy Materials & Solar Cells 85 394
[16] Ding J L 2007 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [丁金磊 2007 博士学位论文(合肥: 中国科学技术大学)]
[17] Easwarakhanthan T, Bottin J, Bouhouch I, Boutrit C 1986 Solar Energy 4 8
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[1] Peng L L, Sun Y Z, Meng C, Chen Y J 2011 J. Donghua University (Natural Science) 1 91 (in Chinese) [彭乐乐, 孙以泽, 孟婥, 陈玉洁 2011 东华大学学报(自然科学版) 1 91]
[2] Sun J H, Xun S J, Zhao W, Wu M D, Shen Y L, He R H 2001 Acta Energiae Solaris Sinica 22 4 (in Chinese) [苏建徽, 徐世杰, 赵为, 吴敏达, 沈玉梁, 何若慧 2001 太阳能学报 22 4]
[3] Peng L L, Sun Y Z, Lin X L, Meng C 2012 Acta Energiae Solaris Sinica 2 284 (in Chinese) [彭乐乐, 孙以泽, 林学龙, 孟婥 2012 太阳能学报 2 284]
[4] Chegaar M, Ouennoughi Z, Hoffmann A 2001 Solid-State Electronics 45 295
[5] De Soto W, Klein S A, Beckman W A 2006 Solar Energy 80 81
[6] Rosell J I, Ibanez M 2006 Energy Conversion and Management 47 2424
[7] Ortiz-Conde A, Sanchez F J G, Muci J 2006 Solar Energy Materials & Solar Cells 90 357
[8] Ye M, Wang X, Xu Y 2009 J. Appl. Phys. 9 94505
[9] Boyd M T, Klein S A, Reindl D T, Dougherty B P 2011 J. Solar Energy Engineering 133 10
[10] Li F G, Sun Y Z, Peng L L 2011 Renewable Energy 3 113 (in Chinese) [李富国, 孙以泽, 彭乐乐 2011 可再生能源 3 113]
[11] AlHajri M F, El-Naggar K M, AlRashidi M R, Al-Othman A K 2012 Renewable Energy 3
[12] Carrero C, Rodriguezb J, Ramirezb D, Platerob C 2009 Renewable Energy 5 1104
[13] Xu J X, Yao R H, Geng K W 2010 J. South China Univ. Tech. (Natural Science Edition) 6 43 (in Chinese) [许佳雄, 姚若河, 耿魁伟 2010 华南理工大学学报(自然科学版) 6 43]
[14] Jain A, Kapoor A 2004 Solar Energy Materials & Solar Cells 81 271
[15] Jain A, Kapoor A 2004 Solar Energy Materials & Solar Cells 85 394
[16] Ding J L 2007 Ph. D. Dissertation (Hefei: University of Science and Technology of China) (in Chinese) [丁金磊 2007 博士学位论文(合肥: 中国科学技术大学)]
[17] Easwarakhanthan T, Bottin J, Bouhouch I, Boutrit C 1986 Solar Energy 4 8
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