PARAMETERS CALCULATION AND ANALYSIS OF MUTI-PEAK OUTPUT CHARACTERISTICS OF PV MODULE UNDER SHADING

Fang Luodi; Guo Qian; Wei Dong; Guo Zeyang; Huang Xin

doi:10.19912/j.0254-0096.tynxb.2020-1112

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (7) : 115-121. DOI: 10.19912/j.0254-0096.tynxb.2020-1112

PARAMETERS CALCULATION AND ANALYSIS OF MUTI-PEAK OUTPUT CHARACTERISTICS OF PV MODULE UNDER SHADING

Fang Luodi, Guo Qian, Wei Dong, Guo Zeyang, Huang Xin

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Abstract

Based on the forward and reverse output characteristics of solar cells, the output characteristic model of the photovoltaic module is established. Aiming at the multi-peak output characteristics under shading patterns, this paper presents a calculation method of model parameters to study the influence of different shading patterns on I-V characteristic curve and model parameters. Through simulation and experiment, this paper analyzes the influence law of model parameters affected by the changes of shaded light intensity and number of the shaded cells in unit of module. The results show that the calculated results of the model parameters and the I-V characteristic curve obtained based on the model parameters have high accuracy; the module output characteristic model and parameter calculation method have a good engineering application prospect for fault diagnosis of PV modules and arrays.

Key words

solar cells / photovoltaic modules / parameter extraction / current voltage characteristics / modeling

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Fang Luodi, Guo Qian, Wei Dong, Guo Zeyang, Huang Xin. PARAMETERS CALCULATION AND ANALYSIS OF MUTI-PEAK OUTPUT CHARACTERISTICS OF PV MODULE UNDER SHADING[J]. Acta Energiae Solaris Sinica. 2022, 43(7): 115-121 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1112

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